find an equation of the line with y intercept (0,7) and the slope of 1/2

Answer:

15 m/s

Explanation:

m₁ = 9 kg, before collision: v₁ = 5 m/s, after collision: v₁' = 0

m₂ = 3 kg,  before collision: v₂ = 0, after collision: v₂' = ? (x)

Momentum conservation:

9 * 5 + 3 * 0 = 9 * 0 + 3 * x

45 = 3x

x = 45/3 = 15 m/s

Let the circumference of the circle be 10L.

A moves at 10L/2 = 5L per hour

B moves at 10L/5 = 2L per hour

Therefore it takes 10L/(5L+2L) = 10/7 hours

Answer:

A

Molecule is basically made of an atom or group of atoms of same or different element and it is definitely possible for it to be made up of two atoms of same element

Answer: the answer is (C)

Explanation: Bar graphs show comparisons using number comparisons

Here you go...

The speakers provide an enforcement role in the community and the people automatically obey them.

In the community, everyone’s every move is watched all of the time.  Community rules are reinforced by constant video surveillance.  When a person is seen breaking a rule, the voice over the speaker will remind...

As positively charged sodium ions enter the axon, potassium ions flow out to repolarize part of the axon.

At the beginning of an action potential of cell membrane, the sodium ion gates open and sodium ions flows into the cell.  This process is called depolarization. Due to rapid influx of sodium ion, the channel is eventually closed.

The potassium channels are then activated in a process called repolarization. This process occurs when the potassium channels open and allow potassium ions to flow out of the cell.

To maintain the cell membrane potential, cells are kept at low concentration of sodium ions and high concentration of potassium ions.

Thus, as positively charged sodium ions enter the axon, potassium ions flow out to repolarize part of the axon.

Learn more here: https://brainly.com/question/7778945

Answer:

F=w=ma                                                                                                                                                       OR by using equations of motions                                                                               vf=vi-at                    : a=vf-vi/t                                                              eq 1                         s=vit+1/2at squre                                                                                 eq 2                     2as=vf squre - vi squre                                                                        eq 3                                                                                                                                                                                  

Explanation:

where m is the mass of falling body , f is the weight is the force acting down ward , vf is the final velocity, vi is the inetial velocity , t is the time and s is the distance covered by a body.

Answer:

Answer:

F = M a       Newton's second law

Γ = I α         Corresponding law for circular motion

α = 20 * 2 π rad / sec / 10 sec = 4 π rad / sec^2

α = 12.6 /sec^2       (rad not an actual unit)

Γ = 5E-3 * 12.6E1 = .63 kg-m^2 / sec^2

(5E-3 / 12.6 = 4E-4 = 4xxE-2   seems like a mistake made in arithmetic)

Note:   kg-m^2 * 1 / sec^2 = kg-m^2 / sec^2 = N-m

One needs to "multiply" inertia * rad/sec^2 to get required units of torque

Creating an effective system to solve problems is beneficial in various ways as it enables an individual to come up with a clear and concise solution to any problem or situation that may arise.

Some of the benefits that I would like to see in my own life as I begin to apply the 4-step problem-solving process are:Improved decision making skills- The 4-step problem-solving process will help me to make better decisions since it requires that I identify the problem, gather information, develop solutions, and implement the most suitable solution. This approach will help me to weigh my options carefully and make decisions based on logic rather than emotions.Improved communication skills- The process of problem-solving requires communication between team members. As I begin to apply the 4-step problem-solving process, I would like to develop better communication skills that will enable me to express my ideas clearly and succinctly.

This will be helpful not only in my personal life but also in my professional life where effective communication is a key to success.Improved critical thinking skills- The process of problem-solving requires critical thinking. By applying the 4-step problem-solving process, I would like to improve my critical thinking skills by learning how to analyze information, assess the problem, and develop solutions based on the available information.Improved productivity- The 4-step problem-solving process is a structured approach that helps to identify problems and develop solutions in a systematic manner. By applying this approach in my life, I would like to improve my productivity since I will be able to solve problems more efficiently and effectively.

for such more questions on  system

https://brainly.com/question/28021242

#SPJ8

Answer:

B

Explanation:

I am pretty sure it is B as the speed is obviously constant but the velocity is not constant as it defines as the rate of speed AND DIRECTION meaning that it is not constant as it always changes direction. And angular velocity is constant.

Researching information

Explanation: Edge 2020

hope this helps :3. pls mark me brainiest Brainliest

Answer:

It is C.

Explanation:

Got it right on edge.

Based on the information provided, it is likely that the figure shows an alternating current (AC). The arrows under the electrons pointing right and left, both towards and away from the light bulb, indicate that the direction of the electron flow is changing periodically. This is a characteristic of alternating current, where the flow of electric charge reverses direction periodically, typically in a sinusoidal manner.

In an AC circuit, the voltage also changes direction periodically, which is consistent with the changing direction of the electron flow shown in the figure.

In an alternating current, the flow of electrons periodically reverses direction, causing the current to switch between positive and negative values. This is different from direct current (DC), where electrons flow in a single, constant direction.

For more questions on: current

https://brainly.com/question/1100341

#SPJ11

Answer:

The response to this question is as follows:

Explanation:

The whole question and answer can be identified in the file attached, please find it.

The force diagram of all the forces acting on the snowball include the normal force acting upwards, the weight of the snowball acting downwards and the frictional force acting horizontal.

The given parameters;

The force diagram of all the forces acting on the snowball is calculated as follows;

                                     ↑ N

                                     ⊕  → F

                                      ↓ W

Where;

Thus, the force diagram of all the forces acting on the snowball include the normal force acting upwards, the weight of the snowball acting downwards and the frictional force acting horizontal.

Learn more here:https://brainly.com/question/3624253

Option C. KE decreases, GPE increases

The GPE of the comet is given by, U(r) = -GMm/r, where M is the mass of the sun, and m is the mass of the comet.

The total energy E of the comet remains constant.

We know, E = K + U  ⇒  K = E - U. So, if U increases K decreases.

As the comet moves from B to C, the distance r between the comet and the sun increases.

When r increases U(r) increases according to the above equation, it becomes more positive. So, the GPE of the comet increases as it moves from B to C. KE, according to the energy relation, thus, decreasing during the same course of motion.

Therefore, as the comet moves from B to C, its KE decreases, and its GPE increases.

Learn more about GPE here

https://brainly.com/question/13978841

#SPJ2

Answer:

If freshwater consumption was greater than freshwater renewal.

Explanation:

Similar to another Brainly answer :O

Answer:

a = 1.1 m/s²

Explanation:

Given:

P = 650 N

m = 75 kg

g = 9.8 m/s²

____________

a - ?

Forse:

P = m*(g - a)

650 = 75*(10 - a)

10 - a = 650 /75

Acceleration:

a = 9.8 - 650 / 75 = 9.8 - 8.7 = 1.1 m/c²

The cost of operation for an A.C for 10 hours per day for a month will be 71,100 francs.

Power is the amount of energy transferred or converted per unit time. The unit of power is the watt, equal to one joule per second. Power is a scalar quantity.

Cost of operation for 10 hours a day;

Daily consumption = 3kW x 10 hours

Daily Consumption = 30kW

Since 1kWH = 79 francs;

Daily consumption amount = 30 x 79 francs

Daily consumption amount = 2,370 francs

Therefore, the monthly consumption (using 30days) will be;

2,370 francs x 30 = 71,100 francs

In conclusion, 71,100 francs will be spent in a month (30 days) to run the 3kW rated A.C for 10 hours a day at 1kWH.

Learn more about power:https://brainly.com/question/25864308

#SPJ1

Answer:

0.5 A

Explanation:

Applying,

V = IR.................. Equation 1

Where V = Voltage, I = current, R = Resistance.

make I the subject of the equation

I = V/R............... Equation 2

From the question,

Given: V = 75 V, R = 150 Ω

Substitute these values into equation 2

I = 75/150

I = 0.5 A.

Hence the cuurent through the resistor is 0.5 A

Mercury which is 2nd denser planet will sink the first in the given circumstances.

Our solar system is situated in the Milky Way galaxy's outer spiral arm.

The Sun, our star, and everything gravitationally connected to it, including the planets Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune, dwarf planets like Pluto, and dozens of moons.

Thousands of planetary systems orbiting other stars in the Milky Way have been found, in addition to our solar system.

Many of the smaller worlds, including the six largest dwarf planets and the six major planets, are orbited by natural satellites, also known as "moons" after the Moon.

To know more about solar system, visit:-

https://brainly.com/question/12075871

#SPJ4

Answer:

57.7

Explanation:

3.14 × 23 + - 78 = 57.7

Answer:

Solve it

Explanation:

The formula for time is: T (period) = 1 / f (frequency). λ = c / f = wave speed c (m/s) / frequency f (Hz). The unit hertz (Hz) was once called cps = cycles per second.

Answer:

A=pi(d/2)^2

Explanation:

I had this problem and got it right

Answer:

Universe

Explanation:

I took the quiz.

Explanation:

ultraviolet radiation

Bombarded with energy

They stored the seeds in a single layer on the outside of the ISS behind a special kind of glass that let in ultraviolet radiation only at wavelengths between 110 and 400 nanometers

Okay, here are the steps to solve this problem:

1) The seesaw is balanced when the sum of moments is 0.

2) The moment created by a force depends on the force and the perpendicular distance from the pivot point.

3) The 20 kg child sits 1 meter from the pivot. So its moment is 20 * 1 = 20 kg*m.

4) We want to find the distance for the 40 kg child to create a moment that balances the 20 kg child's moment.

5) So the moment of the 40 kg child must be 20 kg*m.

6) The moment depends on force and distance. We know the force is 40 kg.

7) So we set: 40 kg * distance = 20 kg*m

8) And solve for the distance: distance = 20 / 40 = 0.5 meters

Therefore, for the seesaw to balance with a 20 kg child 1 meter from the pivot and a 40 kg child on the other side, the 40 kg child should sit 0.5 meters from the pivot point.

Let me know if you have any other questions!

Answer:

1.00 × 10⁴ pieces of pizza

Explanation:

Step 1: Calculate the energy needed to watch the Super Bowl.

We need to produce energy to make an HDTV work (175 W) for 4 hours. First, we will convert, 4 hours to seconds using the conversion factor 1 h = 3600 s.

4 h × 3600 s/1 h = 14400 s

The energy required is:

14400 s × 175 J/s = 2.52 × 10⁶ J

We can convert this to calories using the conversion factor 1 cal = 4.184 J.

2.52 × 10⁶ J × 1 cal/4.184 J = 6.02 × 10⁵ cal

Step 2: Calculate the calories that the person should consume

Assuming an efficiency of 20% for the human body, the calories that a person should consume are:

6.02 × 10⁵ cal × 100/20 = 3.01 × 10⁶ cal

Step 3: Calculate the number of pieces of pizza to be consumed

Each piece of pizza contains 300 cal.

3.01 × 10⁶ cal × 1 piece/300 cal = 1.00 × 10⁴ pieces