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An 2,705kg truck is stopped at a red light. A 1,903kg car that was moving 9.1m/s bumps into the truck and they stick together. Calculate their speed right after the collision.
A 199.9 kg satellite is in a circular orbit of 26,273 miles (42,300,000 m) in radius. What is the velocity (speed) of the satellite
Does an apple tree exert a gravitational force on the earth and if so, how large of a force? Consider and explain this question when the apple is attached to the tree, and when it is falling.
a 120 turn coil of radius 1.8 cm and resistance 5.3 ? is placed outside a solenoid of radius 1.6 cm. Find the magnitude and direction of the current induced in the coil
A slide projector needs to create a 98.0cm -high image of a 2.20cm cm -tall slide. The screen is 304cm cm from the slide. What focal length does the lens need
Explain how does that compare with the heat needed to reaise the temp of the same mass of water through the same temp difference?
at the local county fair, you watch as a blacksmith drops a 0.50kg iron horseshoe into a bucket containing 25kg of water. what is the equilibrium temp of the system
A 70 g ice cube can slide without friction up and down a 30° slope. The ice cube is pressed against a spring at the bottom of the slope, what distance will it travel up the slope
An object is launched at 30 with initial speed of v = 30m/s. a) When does it reach the highest point of the projectile? b) What is the range of the flight? c) What the maximum height it reaches? 30. An object is moving with constant speed of v = 3..
A Carnot engine takes an amount of heat QH = 111 J from a high-temperature reservoir at temperature TH = 1030 °C, Find the amount of work that is obtained from this process
A fire helicopter carries a 520-kg bucket of water at the end of a 20.0-m long cable. Flying back from a fire at a constant speed of 40.0 m/s, the cable makes an angle of 36.0° with respect to the vertical. Determine the force exerted by air resistan..
A suspension bridge is 62.0 m above the level base of a gorge. A stone is thrown or dropped from the bridge. If you throw the stone straight down with a speed of 25.0 m/s, how long before it hits the ground
A suspicious-looking man runs as fast as he can along a moving sidewalk from one end to the other, taking 2.00 s. find the ratio of the man's running speed to the sidewalk's speed
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