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Question1
Drawing velocity/time graphs of the following motions-
A) a city bus that is moving with a constant velocity
B ) a wheelbarrow that is speeding up at a uniform rate of acceleration while moving in positive direction.
C) A tiger that is speeding up at a uniform rate of acceleration while moving in negative direction.
D) An iguana that is slowing done at a uniform rate of acceleration though moving in positive direction.
E) A camel that is slowing down at a uniform rate of acceleration whereas moving in negative direction.
Question2
A man of mass 81 kg escapes from a burning building by jumping from a window located 30 m above a catching net. The acceleration of gravity is 9.81 m/s2. If air friction exerts a constant force of 88 N on him as he falls, what is the velocity just before he hits the net?
A 47.3-cm diameter disk rotates with a constant angular acceleration of 2.70 rad/s2. It starts from rest at t = 0, Find the angular speed of the wheel
The temperature of 1.3mol of an ideal diatomic gas goes from 20?C to 57?C at a constant volume. What is the change in entropy
water in a rotating container of radius 50 mm is 30 mm lower in the center than it is on the edge. Find the angular velocity of the container
A monatomic ideal gas is heated while at a constant volume of 1x10^-3 m^3, using a 10 watt heater. How long was the heater on
Two people carry a heavy electric motor by placing it on a light board 2.70m long. One person lifts at one end with a force of 380N, Where is its center of gravity located
A proton moves through a magnetic field at 31.1% of the speed of light. compute magnitude of the magnetic force acting on the proton
A copper rod 20 cm long having a cross-sectional area of 7.0 cm2 is used to connect a boiler maintained at 100 oC to a large block of ice at 0 oC. What is the rate of change in entropy of the boiler
In a study of proteins mediating cell membrane transport,microbiologists measure current versus time through the cellmembranes of oocytes (nearly mature egg cells) taken from theAfrican clawed frog,
A crate of potatoes of mass 12.0 kg is on a ramp with angle of incline 30° to the horizontal, Find the frictional force (magnitude and direction) on the crate if the crate is sliding down the ramp
A fancy sports car moves past an observer on a corner at a speed of 0.5c. what time interval will be shown on the driver's watch
it takes 100 minutes for a middle-aged physics professor to ride his bicycle up the road to Alpe d'Huez in France, What is the bicyclists average power output
A 0.300kg block is moving to the right along a horizontal frictionless surface with a speed of 0.600 m/s. Find the final velocity of each block after the collision
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