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If a car starts with an initial velocity of 68.0 m/s, how long (in time) will it take to come to a complete stop after a distance of 12.5 m? Also what is the rate of acceleration for the car?
An Australian emu is running due east in a straight line at a speed of 17.5 m/s and slows down to a speed of 12.2 m/s in 4.1 s. (a) What is the direction of the bird's acceleration? (b) Assuming that the acceleration remains the same, what is the ..
A firehose 15 m long is uncoiled by pulling the nozzle end horizontally along a frictionless surface at the steady speed of 2.9 m/s. How much work has been done on the hose
Why is you are not harmed with the contact of a charged metal ball, although its voltage may be very high? Is the reason similar to why you are not harmed by greater-than-10000 C sparks from the Fourth-of-July sparkler? Define your answer in terms..
The vertical displacement of particles in a string (when a wave is propagating through it) is given by y = (0.02) sin[(10?)t - (8?)x], What is the amplitude of the wave
Prism of refractive index 1.53 is placed in water of refractive index 1.33. If the angle of the prism is 60. Calculate the angle of minimum deviation in water
A physical pendulum consists of a meter stick (of mass 0.3 kg) that is pivoted at a small hole drilled through the stick a distance x from the 50 cm mark. The meter stick is then released from rest (at a small angle from vertical) and allowed to o..
A uniform electric field with a magnitude of 6100N/C points in the positive x direction. Find the change in electric potential energy when a +19.0-µC charge is moved 6.50cm in the positive x direction
A uniform electric field of magnitude E =36 N/C points along the x-axis. A circular loop of radius R=20cm is centered at the origin with normal loop pointing theta=25 degrees above the x-axis. Calculate the elextric flux in Nm^2/C that passes thro..
A 5.07-g bullet is shot through a1.06-kg wood block suspended on a string2.00 m long. The center of mass of the block rises a distance of0.47 cm. Find the speed of the bullet asit emerges from the block if its initial speed is 396 m/s.
An asteroid is discovered heading straight toward Earth at 14 km/s . An international team manages to attach a giant rocket engine to the asteroid. The rocket fires for 10minutes , after which the asteroid is moving at 28degrees to its original pa..
37.43 J of heat are removed from a gas sample while it is being compressed by a piston that does 23.12 J of work. What is the change in internal energy of the gas
Establish the Force required to raise a 25.50 kg object by 2 pulleys, the diameter of larger circular pulley is 12.0 cm and the smaller pulley is 8.5 cm.
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