The acceleration of gravity depends on (click all that apply)

Answers

Answer 1

The expression for the acceleration due to gravity can be given as,

$g=\frac{GM}{R^2}$

Here, g is the acceleration due to gravity, G is the gravitational constant, M is the mass of planet and R is the distance from the center of planet.

Therefore, the acceleration due to gravity depends upon the distance from center of planet and the mass of planet.

Related Questions

Nate the Skate was an avid physics student whose main non-physics interest in life was high-speed skateboarding. In particular,
Nate would often don a protective suit of Bounce-Tex, which he invented, and after working up a high speed on his skateboard,
would collide with some object. In this way, he got a gut feel for the physical properties of collisions and succeeded in
combining his two passions.* On one occasion, the Skate, with a mass of 117 kg, including his armor, hurled himself against a
879 kg stationary statue of Isaac Newton in a perfectly elastic linear collision. As a result, Isaac started moving at 1.63 m/s and
Nate bounced backward.
What were Nate's speeds immediately before and after the collision? (Enter positive numbers). Ignore friction with the ground.

Answers

Answer:

Explanation:

The statue, being initially at rest, will move off at twice the velocity of the center of mass of the Skate-Statue system

The CM velocity is 1.63/2 = 0.815 m/s

so the Skates initial velocity can be found

(117 + 879)(0.815) = 879(0) + 117u

u = 6.93794...

|u| = 6.94 m/s

for elastic collisions, the relative velocity of approach will equal the relative velocity of departure.

Approach velocity 6.94 m/s

Skate's departure velocity 1.63 - 6.94 = - 5.31 m/s

|v| = 5.31 m/s

what is kinematics ;-;
explain.

Answers

Answer:

the branch of mechanics concerned with the motion of objects without reference to the forces which cause the motion.

Explanation:

Who came up with the 3 Laws of Motion?

Answers

Answer:

Isaac Newton came up with the 3 Laws of Motion

Answer:

Isaac Newton came up with three laws of motion

In an experiment, a research collected the following informationabout a solution made from a certain
food. What can we conclude about the food?
• pH = 3.0
• Taste = Sour
A. Acid
B. Base
C. Neutral
D. Salt

Answers

Answer:

salt

Explanation:

Dalton’s theory states that atoms are the smallest possible parts of elements. In a chemical reaction, atoms will

rearrange and form new substances with new properties.
change form into completely new atoms with new properties.
be destroyed and remade into new substances.
be turned completely into energy.
An atom’s emission of light with a specific amount of energy confirms that

Answers

Answer:

A.REARRANGED AND FORM NEW SUBSTANCES WITH NEW PROPERTIES

Explanation:

Describe an experiment to illustrate the fact that sound does not travel through a vacuum but rather require a medium for its propagation.

Answers

In the experiment, place a ringing alarm clock inside a vacuum chamber, and observe that when the chamber is evacuated, the sound from the alarm clock cannot be heard, illustrating that sound does not travel through a vacuum.

To illustrate that sound requires a medium for its propagation and does not travel through a vacuum, you can perform the following experiment:

Take two identical bells or sound-producing devices and place them in separate chambers, one in a vacuum chamber and the other in a chamber filled with air.

Ensure that both chambers are isolated from external noise sources.

Activate the sound-producing devices simultaneously, creating sound waves in both chambers.

Observe and listen for the sound produced in each chamber.

In the chamber filled with air, you will hear the sound clearly, as air molecules transmit the sound waves, allowing them to propagate and reach our ears.

However, in the vacuum chamber, you will not hear any sound because there is no medium (such as air) for the sound waves to travel through. Without molecules to transmit the vibrations, the sound cannot reach our ears.

This experiment demonstrates that sound requires a medium, such as air or other substances, to propagate and be perceived by our ears. In a vacuum, where there is an absence of molecules, sound cannot travel.

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if density of water is 300kg m3 and hight 4m of water find the pressure of water ?

Answers

Answer:

11, 760 Pa.

Explanation:

By applying formula P= pgh, where P is pressure, p is density, g is gravitational acceleration (9.8 m\s2) and h is height of water level. Putting values in the formula, you can have the correct answer.

On April 13, 2029 (Friday the 13th!), the asteroid 99942 mi Apophis will pass within 18600 mi of the earth-about 1/13 the distance to the moon! It has a density of 2600 kg/m^3, can be modeled as a sphere 320 m in diameter, and will be traveling at 12.6 km/s.

1)If, due to a small disturbance in its orbit, the asteroid were to hit the earth, how much kinetic energy would it deliver?

2)The largest nuclear bomb ever tested by the United States was the "Castle/Bravo" bomb, having a yield of 15 megatons of TNT. (A megaton of TNT releases 4.184x10^15 J of energy.) How many Castle/Bravo bombs would be equivalent to the energy of Apophis?

Answers

Answer:

Explanation:

Volume of asteroid = 4/3 x π x 160³

= 17.15 x 10⁶

mass = volume x density

= 17.15 x 10⁶ x 2600

= 445.9 x 10⁸ kg

kinetic energy

= 1/2 x 445.9 x 10⁸ x( 12.6 )² x 10⁶

= 35.4 x 10¹⁷ J .

2 )

energy of 15 megaton

= 4.184 x 10¹⁵ x 15 J

= 62.76 x 10¹⁵ J

No of bombs required

= 35.4 x 10¹⁷ / 62.76 x 10¹⁵

= 56.4 Bombs .

Consider the collision between the moving cue ball and the red 15 ball
that is at rest on the table pool. All BUT ONE statement describes what
occurs when the cue ball collides with the 15 ball,
A)
Each ball experiences an equal force directed in
opposite directions,
B)
The 15 ball experiences a rightward force that causes
it to speed up.
The acceleration of the 15 ball is greater than that of
the cue ball.
The moving cue ball experiences a leftward force
that causes it to slow down.
9
D)

Answers

From the laws of Newton, the balls experiences an equal force directed in opposite directions.

What is collision?

Collision is said to occur when on object bumps into another. Collisions are described by the law of conservation of linear mometum which ststes that momentum is neither created nor destroyed.

The question is incomplete hence we can not fully answer the question. However, from the laws of Newton, the balls experiences an equal force directed in opposite directions.

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Which statements describe the principles of the big bang theory? Check all that apply. The universe is continuing to expand. A massive explosion caused matter and energy to expand and form the universe. The cause of the big bang was dark matter and dark energy. The universe expanded, but its size is now remaining constant. The universe is slowly collapsing and getting smalle

Answers

Correct statements are

The universe is continuing to expand. A massive explosion caused matter and energy to expand and form the universe. The cause of the big bang was dark matter and dark energy.

The universe is continuing to expand.

A massive explosion caused matter and energy to expand and form the universe.

Two forces of 68 pounds and 66 pounds act simultaneously on an object. The angle
between the two forces is 77º. Find the magnitude of the resultant, to the nearest
pound. Find the measure of the angle between the resultant and the smaller force, to
the nearest degree.
Resultant:
Angle:
Submit Answer

Answers

Answer:

Explanation:

Let the x axis lie along the 66 lb force with the force vector tail at the origin.

The 68 lb force would lie along a radial 77° CCW from the x axis

The resultant would have an x and y values of

Fx = 66cos0 + 68cos77 = 81.3 lb

Fy = 66sin0 + 68sin77 = 66.3 lb

F = √(81.3² + 66.3²) = 104.87 = 105 lb

θ = arctan (66.3/81.3) = 39°

how was newton's laws used to solve problems on apollo 13 ship
Explain in two full paragraphs

Answers

Answer:

actually ships are made in newtons third law of motion.it states to every action there is equal and opposite reaction. curved is made in downwards to maintain upthrust and to made balance.

actually it prevents ships from drowning and to move with a heavy mass.

There are 9,000 houses in Elizabeth's town. Last summer, 7,020 of the houses were for sale. What percentage of the houses in the town were for sale last summer?

Answers

78% of the houses in Elizabeth's town were for sale last summer.

To find the percentage of houses that were for sale last summer in Elizabeth's town, we need to divide the number of houses for sale by the total number of houses and then multiply by 100.

The total number of houses in Elizabeth's town is given as 9,000. Last summer, 7,020 houses were for sale. To calculate the percentage, we divide 7,020 by 9,000:

Percentage = (7,020 / 9,000) * 100

Simplifying the calculation:

Percentage = 0.780 * 100

Percentage = 78.0%

To explain further, we take the number of houses for sale (7,020) and divide it by the total number of houses (9,000) to get the ratio of houses for sale to the total. Multiplying this ratio by 100 gives us the percentage. In this case, 78.0% indicates that a significant portion of the houses in Elizabeth's town were available for sale during the summer.

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what is the voltage of a toaster oven if it has a resistance of 735 ohms and a has current of 0.63 amps?

Answers

The voltage of a toaster oven is 463.05 volt.

What is Ohm's law?

Under the assumption that all physical parameters and temperatures remain constant, Ohm's law asserts that the voltage across a conductor is directly proportional to the current flowing through it.

This current-voltage relationship is expressed mathematically as:

V = IR

Given that: resistance of the toaster oven : r = 735 ohm.

Current flowing through it: I = 0.63 Ampere.

Hence, potential drop across the toaster oven : V = IR

= 0.63 × 735 volt

= 463.05 volt.

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how much does the outlet voltage decrease due to the voltage drop across the wires?

Answers

Answer:

Explanation:

in "ideal" circuits, there is zero voltage drop in wires. this isn't really the case, but it's usually so small it's negligible

Light travels about 180 million kilometers in 10 minutes. How far does it travel in 1 minute? How far does it travel in 1 second? Show your reasoning
I need help

Answers

Explanation:

180 million km = 10 min

? = 1 min

180 million x 10 = 1,800,000,000 km

180 million km = 600s

? = l s

108,000,000,000km

Kiera, a 330 N girl, steps in water that someone spilt on the floor. The coefficient of kinetic friction between Kiera and the floor is 0.028. What is the force of kinetic friction between Kiera and the floor?

Answers

Answer:

The force of kinetic friction between Kiera and the floor is 9.24 N

Explanation:

Friction Force

When an object is moving and encounters friction in rough surfaces, it loses acceleration and/or velocity because the friction force opposes motion.

The friction force when an object is moving on a horizontal surface is calculated by:

$Fr=\mu N$

Where μ is the coefficient of static or kinetics friction and N is the normal force.

If no forces other then the weight and the normal are acting upon the y-direction, then the weight and the normal are equal in magnitude:

N = W

Thus, the friction force is:

$Fr=\mu W$

Kiera, the W=330 N girl steps in water that has a coefficient of friction of μ=0.028 with the floor.

The kinetic friction force is:

Fr = 0.028*330

Fr = 9.24 N

The force of kinetic friction between Kiera and the floor is 9.24 N

Show that the force of gravity is 3.5 * 1022 N between Earth and the Sun
(Sun’s mass = 2.0 x 1030 kg; average Earth–Sun distance = 1.5 x 1011 m).

Answers

The force of gravity between the sun and the earth is determined as 3.54 x 10²² N.

What is force of gravity?

This is the force of gravity is the force exerted between two objects in the universe.

According to Newton's law of universal gravitation, two bodies in space pull on each other with a force proportional to the product of their masses and the inversely proportional to the square of the distance between them.

F = Gm1m2/r²

where;

m1 is mass of the sunm2 is mass of the earthr is the distance between the two bodies

F = (6.67 x 10⁻¹¹ x 2 x 10³⁰ x 5.97 x 10²⁴) / (1.5 x 10¹¹)²

F = 3.54 x 10²² N

Thus, the force of gravity between the sun and the earth is determined as 3.54 x 10²² N.

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Calculate the total resistance and voltage as well as the current across each resistor inthe parallel circuit found below:

Answers

First, we need to find the equivalent resistance. We can find it as follows:

$\begin{gathered} \frac{1}{Req}=\frac{1}{R1}+\frac{1}{R2}+\frac{1}{R3} \\ so: \\ \frac{1}{Req}=\frac{1}{15}+\frac{1}{5}+\frac{1}{12} \\ \frac{1}{Req}=\frac{7}{20} \\ Req=\frac{20}{7} \\ Req=2.857\Omega \end{gathered}$

Now, we can find the voltage using Ohm's law:

$\begin{gathered} V=IR \\ so: \\ V=10.5\cdot2.857 \\ V=30V \end{gathered}$

Now, since the circuit is in parallel, the voltage is the same for every resistance. So, let's find the current for each resistance using Ohm's law:

For the resistance of 15:

$I_{15}=\frac{V}{R}=\frac{30}{15}=2A$

For the resistance of 5:

$I_5=\frac{V}{R}=\frac{30}{5}=6A$

For the resistance of 12:

$I_{12}=\frac{V}{R}=\frac{30}{12}=2.5A$

Completing the table using the previous data:

in coming to a stop, an old truck leaves skid marks 45 m long on the highway. assuming a deceleration of 6m/s2 , estimate the speed of the truck just before braking.

Answers

The speed of the truck just before braking is 23.24 m/s.

What is the speed of the clock before braking?

The speed of the truck before braking is calculated by applying the third kinematic equation as shown below.

v² = u² - 2as

where;

v is the final velocity of the truck when it stopsa is the acceleration of the trucks is the distance travelled by the truck

When the truck stops, the final velocity = 0

0 = u² - 2as

u² = 2as

u = √2as

u = √ ( 2 x 6 x 45 )

u = 23.24 m/s

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a circuit when electricity flows freely; which unit of electricity expresses the volume of electron movement in a circuit; what supplies energy in an electric circuit; it is composed of a source of electrons, the load, the wire and a switch; movement of electrons is what energy; moving electrons are called; a closed path that allows electrical energy to flow is called a(n); which material is a conductor

Answers

The international unit for measuring current is an ampere, sometimes known as an amp or AM-pir. It describes how many electrons—also referred to as "electrical charge"—flow past a certain point on a circuit.

What is the ampere in the SI system?

Electric current is measured in a SI unit known as an ampere, or A. It is determined by assuming that the elementary charge, e, has a fixed quantitative score of 1.602 176 634 x 10-19 when represented with in unit C, which would be equivalent to the second in terms of vCs.

What does the term "1 amp" mean?

The velocity of electron transport or power in a conductive material is measured in amperes. One make this process of electric charges (6.24 x 1018 protons ( h+) traveling by a given location in one second is represented by one ampere of current.

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A model rocket has a mass of 0.2 kg, with a motor that can provide a force of 200 N. A second model rocket is being built with the same motor, but it is being designed to accelerate one-fourth as much as the first rocket.What kind of change can be made in the design to achieve this objective?
brainliest! for a full explanation

Answers

We can achieve this design by adding weight to the second rocket, such as by adding a heavier nose cone, fins, or other components.

What kind of change can be made in the design?

The first model rocket has a mass of 0.2 kg and is powered by a motor that can provide a force of 200 N.

Using Newton's second law of motion, we can calculate the acceleration of the rocket:

F = ma

where;

F is the force applied to the rocket, m is the mass of the rocket, and a is the acceleration of the rocket.

Rearranging the equation, we can solve for the acceleration:

a = F/m

Plugging in the values, we get:

a = 200 N / 0.2 kg

a = 1000 m/s^2

So the first model rocket accelerates at 1000 m/s².

The second model rocket is being designed to accelerate one-fourth as much as the first rocket. This means that its acceleration will be:

a' = 1/4 * a

a' = 1/4 * 1000 m/s²

a' = 250 m/s²

So we need to design the second rocket so that it accelerates at 250 m/s².

We can use the same motor, so the force applied to the rocket will still be 200 N. Therefore, we need to change the mass of the rocket to achieve the desired acceleration.

Using the equation for acceleration, we can solve for the mass needed to achieve an acceleration of 250 m/s²:

a' = F/m'

250 m/s² = 200 N / m'

m' = 200 N / 250 m/s^2

m' = 0.8 kg

So the mass of the second rocket needs to be 0.8 kg in order to achieve an acceleration of 250 m/s² with the same motor.

Thus, we can achieve this by adding weight to the second rocket, such as by adding a heavier nose cone, fins, or other components. Alternatively, we could also increase the size of the second rocket while keeping the same mass, which would decrease its acceleration but also increase its overall speed and altitude.

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Write a hypothesis about how the mass of the cylinder affects the temperature of the water. Use the "if . . . then . . . because . . .” format and be sure to answer the lesson question: "How is potential energy converted to thermal energy in a system?”

Answers

Hypothesis, If the mass of the cylinder increases, then the temperature of the water will also increase because an increase in mass leads to greater potential energy, which is converted to thermal energy in the system.

According to the principle of conservation of energy, energy cannot be created or destroyed but can be transformed from one form to another. In this case, potential energy from the mass of the cylinder can be converted into thermal energy in the system. When the cylinder is lifted and submerged in the water, it possesses gravitational potential energy due to its elevated position.

As the cylinder is released and descends into the water, this potential energy is converted into kinetic energy, causing the water molecules to move and collide with higher energy. These collisions generate heat and increase the overall temperature of the water. By increasing the mass of the cylinder, more potential energy is stored.

As a result, there is a greater amount of energy available to be converted into thermal energy when the cylinder is released into the water. Thus, the temperature of the water is expected to increase as the mass of the cylinder increases.

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I NEED HELP THIS DUE TODAY! ”What are 12 facts about ENERGY?” 50 points if answered!!

Answers

Answer:

The average U.S. home uses about 11,000 kilowatt hours of electricity per year.

Electricity travels at the speed of light – over 186,000 miles per second.

Electricity can be produced from fossil fuels, large hydro power plants, nuclear power plants, or renewables like wind or solar.

Birds and other small animals can perch on power lines without being electrocuted unless they simultaneously touch another line, which would create a complete circuit.

For electricity to come into your home, it travels from generation facilities to a high-voltage switchyard, to transmission lines, to a substation, to a distribution line, to a transformer, to your house.

Geothermal energy comes from the Earth. It consists of hot water and hot rock that’s just a few miles beneath the Earth’s surface, and can go even deeper to very hot molten rock called magma. It’s considered clean and sustainable.

Renewable energy comes from perpetual sources like wind, solar or geothermal. Most electricity, though, is produced from nonrenewable sources like fossil fuels (coal, crude oil, natural gas, and uranium). They are nonrenewable because there is a finite amount of them that were formed from buried remains of plants and animals that lived millions of years ago. They cannot be replenished the way renewable energy sources can.

In the U.S., the areas most favorable for geothermal energy use are in Nevada, Oregon, Idaho, Arizona, Utah, Colorado and New Mexico. Geothermal plants are located where water has seeped into the Earth’s crust, and they force the water back up through permeable rock.

Saving energy can be as simple as switching from incandescent light bulbs to CFL or LED versions.

About 40 percent of energy from all resources is used for electricity, which means that our resources are used more for that purpose than for any other.

CFL bulbs consume 80% less electricity than standard bulbs

Natural Gas Facts

When we think about energy facts, we usually focus on electricity, but our homes use natural gas, too! Natural gas is a gaseous mixture of hydrocarbon compounds used as fuel to generate electricity. In order to be used in your home, it must first be processed and converted into dry natural gas. To learn more about its use in your home, check out the natural gas facts below.

10 Facts about Natural Gas

The main component of natural gas is methane, with butane, propane, ethane, or pentane sometimes included.

The “rotten egg” smell of natural gas is actually added by power companies so that your nose can detect a gas leak. In its initial state, natural gas is colorless and nearly odorless.

Most natural gas is delivered via pipeline; there are enormous networks that deliver it to processing facilities, which then transport it to the end consumer. Along the route, there are compressors and metering stations to monitor pressure, flow, and leaks.

When natural gas is transported between countries, it travels by ship in liquid form. This way, it takes up less volume. Once it reaches land, it is regasified (or returned to gas form) and sent to the pipelines for distribution.

In the U.S., there are more than 2.5 million miles of pipeline used for transporting natural gas directly into homes and businesses.

It’s reported that 85 percent of the natural gas consumed in the United States is produced domestically.

Energy facts suggest that natural gas is one of the cleanest choices for fossil fuels. It produces less carbon and pollution than other fossil fuels.

The natural gas and oil industry employs nearly 10.3 million Americans. That’s equals to about 5.6 percent of all of U.S. employment.

Approximately 66 million homes and 5 million businesses in the U.S. use natural gas as an energy source.

This is one of the more important natural gas facts: transportation is one of the most difficult and fragile aspects to its use. Because the main component to natural gas is methane, which is a potent greenhouse gas, undetected leaks can contribute to climate change.

The "rotten smell" is added to the natural gas so your nose can detect a gas leak

Energy Conservation

What Is Energy Conservation?

Your energy use can really affect your energy bill, and directly impacts the environment. In a world of scarce resources, find out how you can conserve energy and save.

Water Conservation

What Is Water Conservation?

Though water is a renewable resource, fresh clean water is in limited supply. Check out our energy tips for conserving water to benefit the environment –– and your wallet.