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Blake passes a parked police car at a constant speed of 29 m/s. At that instant the police car starts from rest with a uniform acceleration of 2.15 m/s2. How far in distance does Blake get before being overtaken by the police car? Answer in unitsof m.
What is an average speed for the new trip
An infinitely long line of charge has a linear charge density of 4.50×10?12C/m . A proton is at distance 12.0 cm from the line and is moving directly toward the line with speed 1400 m/s. How close does the proton get to the line of charge? (m)
A 4.70 kg object on a horizontal frictionless surface is attached to a spring with spring constant 920 N/m. obtain the initial potential energy of the block-spring system
The starship Enterprise speeds by you at a speed of 0.960c. It is measure in your frame to be 100 m long. What will be it's length at rest
A dolphin in seawater at a temperature of 25 °C makes a chirp. How much time passes before it hears an echo from the bottom of the ocean, 208 m below.
A basketball (M = 0.6 kg, R = 12.1 cm) with a tennis ball (m = 0.06 kg, r = 3.25 cm) directly on top of it is dropped from a height of 1 m. Find the speed of the basketball after its collision with the ground
A 12 g bullet is fired horizontally into a 96 g wooden block initially at rest on a horizontal surface. estimate the speed of the bullet
How long does it take for a golf ball to fall from rest for a distance of 12.0 m? How far would the ball fall in twice that time
A point source of light is 200 cm below the surface of a body of water. Find out the diameter of the circle at the surface through which light emerges from the water.
Suppose the solar insolation is 850 W/m2 and you can collect 20% of the energy that fall on the surface of a solar hot dog cooker. If you need 240 W to cook a hot dog, what is the minimum area required?
Mars has a mass of 6.42 1023 kg and a radius of 3.40 106 m. Assume it is a uniform solid sphere. The distance of Mars from the Sun is 2.28 1011 m. What is the rotational kinetic energy of Mars on its axis
A 700 lb floating platform is at rest when a 200 lb crate is thrown onto it with horizontal speed v0 = 12 ft/s. find the distance that the crate slides relative to the platform
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