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A 2.9kg block slides with a speed of 1.6m/s on a frictionlesshorizontal surface until it encounters a spring. a.) If the blockcompresses the spring 4.8cm before coming to rest, what is theforce constant of the spring? b.) What initial speed should theblock have to compress the spring by 1.2cm?
A puck slides on a surface for 5.6 m before it stops. If it was moving at a velocity of 15 m/s and has a mass of 1.2 kg, what is the force of friction exerted on the puck
A size-5 soccer ball of diameter 22.6cm and mass 426g rolls up a hill without slipping, reaching a maximum height of 5.00m above the base of the hill. How much rotational kinetic energy did it then have
A spotlight at the bottom of a pool emits a cone of light upward 22 degrees wide. n= 1.33, How wide (as angle w) is the cone of ligh outside of the pool
a tennis ball is thrown from ground level with velocity vo directed 30 degree above the horizontal. if it takes the
question a 575 ohms resistor and a 260mh inductor are connected in series with an ac generator with an rms voltage of
The take-up reel of a cassette tape has an average radius of 1.4 cm. Find the length of tape (in meters) that passes around the reel in 38 s
Speedboat A negotiates a curve whose radius is 152 m. Speedboat B negotiates a curve whose radius is 204 m. Each boat experiences the same centripetal acceleration. Illustrate what is the ratio vA/vB of the speeds of the boats?
A golf ball of mass 4.50 10-2 kg is struck by a club. Compute the average force the club exerts on the ball by finding its average acceleration
A 1.0- kg mass is attached to a string wrapped around a shaft of negligible mass and having a 7.0- cm radius. How far apart are the masses of the dumbbell
The impact of the head of a golf club on a golf ball can be approximately regarded as an elastic collison. what must the speed of the club be before impact
a 15.0-kg satellite has a circular orbit with a period of2.27h and a radius of 7.90times106 m around a planet of
A 100 g cube of ice at 0 degree Celsius is dropped into 1.0kg of water that was originally at 80 degree celsius. What is the final temperature of the water after the ice has melted?
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