Experiment with the catapult by changing the amount of energy used to pull the spoon down. When you pull down a small amount and release the marshmallow, what happens? Record your observations. When you pull down a large amount and release the marshmallow, what happens?

Answer:

Erosion

Explanation:

Sedimentary rocks are created from the build up of sediments, such sediments can be found in stuff like soil, other rocks and many more. Erosion is involved in these type of rocks because the byproduct of erosion are sediments.

Answer:

Rivers... and Windstorms....

Explanation:

I just did it a p e x

Answer:

1840 J

Explanation:

From the question given above, the following data were obtained:

Specific heat capacity (C) = 0.46 J/gºC

Mass (M) = 50 g

Initial temperature (T₁) = 20 °C

Final temperature (T₂) = 100 °C

Heat (Q) required =?

Next, we shall determine the change in the temperature. This can be obtained as follow:

Initial temperature (T₁) = 20 °C

Final temperature (T₂) = 100 °C

Change in temperature (ΔT) =?

ΔT = T₂ – T₁

ΔT = 100 – 20

ΔT = 80 °C

Finally, we shall determine the heat required. This can be obtained as follow:

Specific heat capacity (C) = 0.46 J/gºC

Mass (M) = 50 g

Change in temperature (ΔT) = 80 °C

Heat (Q) required =?

Q = MCΔT

Q = 50 × 0.46 × 80

Q = 1840 J

Thus, 1840 J of heat energy is required.

Answer:

Scalar quantities are defined by a magnitude with no applicable direction. In contrast, vector quantities must have both magnitude and direction of action. Some common scalar quantities are distance, speed, mass, and time. Some common vector quantities are force, velocity, displacement, and acceleration.

Explanation:

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You are correct that feeling down or sad is a common experience for many people, and it does not necessarily indicate clinical depression.

Depression is a serious mental health condition that is characterized by persistent feelings of sadness, hopelessness, and loss of interest or pleasure in activities that were once enjoyable. These symptoms must persist for at least two weeks and cause significant distress or impairment in daily functioning in order to be diagnosed as depression by psychologists or other mental health professionals.

It is normal to experience temporary periods of sadness or feeling down in response to stressful life events, such as the loss of a loved one or a job, or as a part of the natural ups and downs of life. However, if these feelings persist for an extended period of time and interfere with one's ability to carry out daily activities, it may be a sign of depression or another mental health condition.

It is important to seek professional help if you or someone you know is experiencing symptoms of depression or any other mental health concern. A mental health professional can provide an accurate diagnosis and develop an appropriate treatment plan to help alleviate symptoms and improve overall well-being.

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Answer: When a beam of sunlight strikes a molecule in the atmosphere, what's called "scattering" occurs, sending some of the light's wavelengths off in different directions.

Explanation:

"As measured by an observer on Earth, the length of the astronaut in the direction of motion would be approximately 0.8294 meters." This contraction in length occurs due to the relativistic effects caused by the high velocity of the rocket ship.

When an object is moving at a significant fraction of the speed of light, special relativity effects come into play, including time dilation and length contraction. In this scenario, the astronaut in the rocket ship is moving at 91.0% of the speed of light relative to the Earth.

According to special relativity, observers in different inertial reference frames may measure different values for lengths and times. From the perspective of an observer on Earth, the length of the astronaut in the direction of motion (parallel to the rocket's velocity) would appear contracted due to length contraction.

To calculate the contracted length, we can use the Lorentz transformation. The formula for length contraction is given by:

L' = L * sqrt(1 - (v²/c²))

Where:

L' is the contracted length (as measured by the observer on Earth)

L is the proper length (as measured by the astronaut in the rocket ship)

v is the relative velocity between the rocket and Earth

c is the speed of light

Let's assume that the astronaut's proper length (L) is 2 meters. We can calculate the contracted length (L') as follows:

L' = 2 * sqrt(1 - (0.91²))

L' ≈ 2 * sqrt(1 - 0.8281)

L' ≈ 2 * sqrt(0.1719)

L' ≈ 2 * 0.4147

L' ≈ 0.8294 meters

Therefore, as measured by an observer on Earth, the length of the astronaut in the direction of motion would be approximately 0.8294 meters. This contraction in length occurs due to the relativistic effects caused by the high velocity of the rocket ship.

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Answer:

One reason is because the earth is tilted away from the sun on its axis in winter causing less intense heat. But during summer we are tilted towards the sun, causing more intense heat. Another reason why is because There is less time in the day for the sun to make it really hot.

Explanation:

-Hope this somewhat helped

lol i’m in your physical science class what was the answer

Answer:

Soln:Here

Given,

Distance(s)=5m

Time taken(t)=20min=2400seconds

Speed(s)=?

We know that,

Speed(s)=Distance/timetaken

=5m/2400sec

580m/s

Thus the average speed of his bicycle is 580 m/s..

Thank you...

Answer:

I mean they have the same amount of velocity

The greatest speed among the given options is option D) 40 mi/h.

The greatest speed among the given options can be determined by converting all the speeds to a common unit and comparing their magnitudes. Let's convert all the speeds to meters per second (m/s) for a fair comparison:

A) 0.74 km/min = (0.74 km/min) * (1000 m/km) * (1/60 min/s) = 12.33 m/s

B) 40 km/h = (40 km/h) * (1000 m/km) * (1/3600 h/s) = 11.11 m/s

C) 400 m/min = (400 m/min) * (1/60 min/s) = 6.67 m/s

D) 40 mi/h = (40 mi/h) * (1609 m/mi) * (1/3600 h/s) = 17.88 m/s

E) 2.0 x 10^5 mm/min = (2.0 x 10^5 mm/min) * (1/1000 m/mm) * (1/60 min/s) = 55.56 m/s

By comparing the magnitudes of the converted speeds, we can conclude that the greatest speed is:

D) 40 mi/h = 17.88 m/s

Therefore, the correct answer is option D) 40 mi/h.

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Answer:

It is the inability of the body to change by itself its state of rest or uniform motion or direction. Types of Inertia- It is of three types-(1)Inertia of rest (2) Inertia of motion(3) Inertia of direction. (1) Inertia of rest - It is the inability of the body to change by itself its state if rest.

The first hypothetical stars with masses between 100 and 300 solar masses, known as type III population stars, may have blazed briefly (less than I am a million years each).

In the halos of spiral galaxies and in the globular clusters of the Milky Way system, one can find Population II stars, including RR Lyrae variable stars. These objects also populate elliptical galaxies in significant numbers.

Therefore,  It is a well-known fact that stars use their thermonuclear fuel more quickly the more massive they are, under the theory of stellar evolution.

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When high voltages are present, a glow may be seen around sharp points, known as corona discharge.

This glow is caused by the ionization of the air molecules near the sharp point due to the electric field strength. The ionized air molecules emit light, creating a visible glow. The intensity and color of the glow depend on the voltage level and the gas composition of the surrounding environment.

Corona discharge is a phenomenon that occurs when high voltages are applied to a conductor, especially in the presence of a sharp point or a high electric field. It results in the ionization and excitation of the surrounding air molecules, creating a glowing or visible aura of light around the conductor. The ionized air can also produce a hissing or crackling sound. Corona discharge is often observed in high-voltage power lines, antennas, and other high-voltage equipment. It is important to note that corona discharge can cause power loss and interfere with the proper functioning of electrical systems, so efforts are made to minimize its occurrence in high-voltage applications.

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The time of flight of the ball is 1.1 s and the maximum height attained is 1.42 m.

The time of flight refers to the time that it takes for the ball to remain in air. The time of flight is given by;

T = 2usinθ/g

T = 2 * 13 m/s (sin24)/9.8 m/s^2

T = 1.1 s

The height that it reaches is obtained from;

H = v^2sin^2θ/2g

H = 27.96/19.6

H = 1.42 m

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A telescope at the Observatoire de Haute-Provence in France was used to make the first exoplanet discovery around 51 Pegasi.

The southeast French region of Haute-Provence is renowned for its picturesque scenery, important historical landmarks, and rich cultural history. It is located in the Provence, Alpes, and Côte d'Azur region and has a total size of around 7000 square kilometres. The region is known for its rugged topography, forests, lakes, and rivers, all of which offer a variety of chances for outdoor activities like hiking, skiing, and water sports. Several charming towns and villages, such Forcalquier, Manosque, and Sisteron, can be found in Haute-Provence and serve as examples of the area's distinctive architecture and history. The region is also well-known for its long-standing culinary traditions, which include its wines, cheeses, and olive oil. In the village of Saint-Michel-l'Observatoire, the Observatoire de Haute-Provence is a significant research facility for astrono.

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The given normalized radiation intensity of the antenna is U = sinθsinϕ.

(a) To find the exact directivity, we need to calculate the maximum radiation intensity. In this case, the maximum value of U occurs when sinθ and sinϕ both have a maximum value of 1. So, when θ = π/2 and ϕ = π/2, U = sin(π/2)sin(π/2) = 1.

Directivity (D) is defined as the ratio of the maximum radiation intensity to the average radiation intensity over the entire solid angle. Since the intensity is zero outside the 0 ≤ θ ≤ π, 0 ≤ ϕ ≤ π region, the average radiation intensity is also zero.

Therefore, the exact directivity is D = 1/0 = undefined.

(b) The azimuthal and elevation plane half-power beamwidths can be calculated using the equation:

Half-power beamwidth = 2 * sin^(-1)(1/sqrt(2))

In this case, the half-power beamwidth in both the azimuthal and elevation planes is:

Half-power beamwidth = 2 * sin^(-1)(1/sqrt(2))
                       = 2 * sin^(-1)(sqrt(2)/2)
                       = 2 * sin^(-1)(sqrt(2)/2)
                       = 2 * π/4
                       = π/2
                       = 90 degrees

So, the azimuthal and elevation plane half-power beamwidths are both 90 degrees.

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When energy is transferred between earth's system, some energy is lost to the surroundings in the form of

-light

-movement

-heat

-vibration

Only a few factors account for the majority of the energy in the Earth system: solar energy, gravity, radioactive decay, and the rotation of the Earth. Many surface processes, including winds, currents, the hydrologic cycle, and the entire climate system, are powered by solar energy. Rivers and other materials flow downhill due to gravity, which also causes tides (due to the Moon's gravitational pull). The Earth's interior is heated by radioactive decay, while air and water currents are influenced by the forces of rotation.

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We can prove d1 = R(d1 - d2), accepting that d1 and d2 are the densities of two immiscible fluids and R is the relative thickness (i.e., thickness relative to that of the lower fluid) of a strong submerged within the lower fluid.

Accepting that d1 and d2 are the densities of two immiscible fluids (with d1 being the thickness of the upper fluid and d2 being the thickness of the lower fluid) layered one over the other in a holder, and accepting that there's a strong with thickness R which is submerged within the lower fluid, we are able demonstrate that d1 = R(d1 - d2) utilizing the rule of buoyancy.

The buoyant drive acting on the strong is break even with to the weight of the uprooted fluid, which is break even with to the volume of the strong submerged within the fluid duplicated by the thickness of the fluid. Hence, able to type in:

Buoyant drive = Volume of submerged strong × Thickness of fluid

Since the strong is submerged within the lower fluid, ready to compose the volume of submerged strong as:

Volume of submerged solid = Volume of strong × (d2 / R)

where d2 / R is the proportion of the thickness of the lower fluid to the thickness of the strong.

Substituting this expression for the volume of submerged strong within the condition for the buoyant constrain, we get:

Buoyant constrain = (Volume of strong × d2 / R) × Thickness of fluid

Since the strong is in balance, the buoyant constrain must be break even with to the weight of the strong, which is given by:

Weight of strong = Volume of strong × Thickness of strong

Likening the buoyant constrain and the weight of the strong, we get:

(Volume of strong × d2 / R) × Thickness of fluid = Volume of strong × Thickness of strong

Canceling the volume of strong from both sides, we get:

d2 / R = (Thickness of strong) / (Thickness of fluid)

Improving this condition, we get:

R = (Thickness of strong) / (Thickness of fluid / d2)

Increasing both sides by d1 - d2, we get:

R(d1 - d2) = (Thickness of strong) / (Thickness of fluid / d2) × (d1 - d2)

Disentangling, we get:

R(d1 - d2) = Density of strong

Subsequently, we have demonstrated that d1 = R(d1 - d2), accepting that d1 and d2 are the densities of two immiscible fluids and R is the relative thickness (i.e., thickness relative to that of the lower fluid) of a strong submerged within the lower fluid.

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Answer:

Glucose diffuse from the blood plasma, across the capillary walls to the tissue fluid, and then to the cell.

Glucose diffuse from the blood plasma, across the capillary walls to the tissue fluid, and then to the cell. The waste product urea diffuse from the cells of the liver to the tissue fluid, and then across the capillary walls into the blood plasma.

The y component of puck B's momentum after the collision is 0 g cm/s.

Momentum is the quantity of motion of a moving object, measured as a product of its mass and velocity. In physics, it is a conserved quantity, meaning that the total momentum of a closed system remains constant, regardless of the interactions within the system. Momentum can be transferred from one object to another, or between objects and their environment. Momentum is the driving force behind many physical phenomena, including collisions, friction, rocket propulsion, and the orbits of planets and stars.

\(p_A\)  (before) = \(m_A\) * \(v_A\) = 165.0 g * 55.0 cm/s = 9077.5 g cm/s
\(v_A\) (x) = \(v_A\) * cos(27.0°) = 29.0 cm/s * cos(27.0 °) = 27.61 cm/s
\(v_A\) (y) = \(v_A\) * sin(27.0 °) = 29.0 cm/s * sin(27.0 °) = 14.26 cm/s
Using these components, we can calculate the momentum of puck A after the collision:
\(p_A\)  (after) = \(m_A\) * \(v_A\) = 165.0 g * 27.61 cm/s = 4562.1 g cm/s
\(p_A\) (before) + \(p_B\) (before) = \(p_A\)  (after) + \(p_B\) (after)
9077.5 g cm/s + \(p_B\) (before) = 4562.1 g cm/s + \(p_B\) (after)
\(p_B\) (before) = 4562.1 g cm/s - 4562.1 g cm/s = 0
Since the momentum of puck B before the collision was 0, its momentum after the collision must also be 0. Therefore, the y component of puck B's momentum after the collision is 0 g cm/s.

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Statement:

A force is necessary to stretch a spring 0.5 m when the spring constant is 190 N/m.

To find out:

The force required to stretch the spring.

Solution:

Answer:

95 N

Hope you could understand.

If you have any query, feel free to ask.

To find the coefficient of kinetic friction between the bank safe and the floor, we'll consider the forces acting on the safe. So, the coefficient of kinetic friction between the safe and the bank floor is approximately 0.25.

To find the coefficient of kinetic friction between the bank safe and the floor, we'll consider the forces acting on the safe. The safe is sliding at a constant speed, which means that the net force acting on it is zero. In this scenario, Clyde pushes with a force of 385 N and Bonnie pulls with a force of 350 N.
First, we need to determine the total horizontal force acting on the safe. Since both forces are in the same direction (forward), we can simply add them:
Total horizontal force = 385 N (Clyde) + 350 N (Bonnie) = 735 N
Next, let's find the normal force, which is the force acting perpendicular to the floor. For a flat surface and no vertical forces other than gravity, the normal force is equal to the weight of the safe:
Normal force = mass × gravity = 300 kg × 9.81 m/s² ≈ 2943 N
Now we can find the coefficient of kinetic friction (μk) using the equation:
Total horizontal force = μk × normal force
Rearranging the equation to solve for μk, we get:
μk = Total horizontal force / normal force = 735 N / 2943 N ≈ 0.25
So, the coefficient of kinetic friction between the safe and the bank floor is approximately 0.25

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The medium for an ocean wave is the ocean water which involves movement on the water body.

This is defined as a substance or material that carries the wave. In the case of ocean waves, the medium is referred to the ocean water.

The medium is not transferred when a water wave moves on a lake as energy is transported but the water molecules aren't which is why lakes have water present in them.

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D. The density of the sir increases and the air rises.

When coming in contact with the kettle, it becomes hot, it expands and rises up, due to lesser density as compared to the surrounding air.

To solve this problem, we can use the equation for braking distance:
Braking distance = (initial velocity)^2 / (2 x braking force)

We want to bring the car to a halt, so the final velocity will be 0 m/s. Therefore, the braking distance will be equal to the initial distance the car traveled in 10 seconds:

Braking distance = 20 m/s x 10 s = 200 m

Now we can plug in the values we have:

200 m = (20 m/s)^2 / (2 x braking force)

Solving for the braking force, we get:

braking force = (20 m/s)^2 / (2 x 200 m) = 1000 N

Therefore, a braking force of 1000 N is needed to bring the car to a halt in 10 seconds.

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Answer:

Explanation: O B. Diffraction

•What is the all time speed record for completing the iditarod?

Answer:

•In 2016, Dallas broke his own record, finishing in 8 days, 11 hours, 20 minutes and 16 seconds. In 2017, Mitch Seavey broke all previous records by finishing in 8 days, 3 hours, 40 minutes and 13 seconds, which currently stands as the fastest winning time for the Iditarod.

Explanation:

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The child at 5 years old would weight: 60 lb (27.16 kg) If he continues gaining weight a that rate

To solve this problem we will use a rule of three with the problem information:

3 years-------- 36 lb child's weight

5 years -------- x

Applying the rule of three we get:

x = ( 5 years * 36 lb child's weigh) / 3 years

x = 60 lb

By converting the weight units from lb to kg we have:

x = 60 lb * 16.3 kg/36 lb

x = 27.16 kg

It describes the proportionality of 3 known data and an unknown data. When you have more than 3 known facts that are involved in the proportionality, it is known as a compound rule. The rule of three is also known as a direct proportions.

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