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A ball rolls up a ramp, decelerating by 1.2 m/s every second. If the initial speed of the ball was 7.2 m/s, how far up the ramp will the ball travel? How long will it take for the ball to come to a complete stop?
The amplitude of a system moving with simple harmonic motion is doubled. The total energy will the be:
When these two wires are connected in equivalent to the same battery, describe the reasoning of the steps that allow you to find out which of these wires will consume the greater amount of power by warming up and dissipating this energy as heat.
suppose you attach the object with mass m to a vert spring at rest and let it bounce up and down. you release the object from restat the springs original rest length.
A bullet weighing 5 g is fired horizontally into a 2 kg wooden block resting on a horizontal table. The bullet is arrested within the block which moves 2 m. If the coefficient of kinetic friction between the block and surface of the table is 0.2, ..
The engine in a 1500kg car has a maximum power output of 200hp , but 25% of the power is lost before reaching the drive wheels. What is the car's top speed
The speed of sound in air is 345 m/s. A tuning fork vibrates above the open end of a sound resonance tube. what is the frequency (in Hertz) of the tuning fork
A river flows due south with a speed of 2.30 . A man steers a motorboat across the river; his velocity relative to the water is 4.40. find How much time is required to cross the river
for the isomerization of n-butane to isobutene we have g -rt lnk where r 1.9872 and k isobutenen-butane the temperature
question a jetliner has a mass of 1.1 x 105 kg and flies at a speed of 120 ms. a find the value of its momentum. b if
When jumping, a flea reaches a takeoff speed of 1.2 m/s over a distance of 0.45mm, How long does the acceleration phase last
You kick a rock off a cliff which is 22.22 m high, with a horizontal velocity of 13.90 m/s, What is the magnitude of the rock's total velocity when it hits the ground below
A 50 kg cylinder of radius 20 cm starts from rest and reaches 2.0 revolutions per second after 2.0 seconds. Through what angle did it turn
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