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Q1. 1) An 865 kg drag race car accelerates from rest to 111 km/h in 0.749 s. What change in momentum does the force produce?
Respond in units of kg • m/s
2) what average force is exerted on the car? Response in units of N
Q2. A 75 g, 31 cm long rod hangs vertically on a frictionless, horizontal axle passing through its center. A 12 g ball of clay travelling horizontally at 2.1 m/s hits and sticks to a very bottom tip of the rod.
To what maximum angle, measured from vertical, does rod (with the attached ball of clay) rotate?
A rifle with a barrel length of 58 fires an 11 bullet with a horizontal speed of 370. The bullet strikes a block of wood and penetrates to a depth of 15.
Compute the average linear velocity of the discus
What fraction of the power radiated by the sun is intercepted by the planet Mercury? The radius of Mercury is 2.44 x 106 m, and its distance from the sun at the moment is 5.75 x 1010 m. presume that sun radiates uniformly in all directions.
The coefficient of expansion of iron and zinc
Find out the magnetic induction at a point
Evaluate the electrostatic energy of two opposite charges
A second fragment, who's mass is 3.4 kg, moves away from the point of explosion with a speed of 418 m/s along the negative x axis. What is the speed of the third fragment? Ignore effects due to gravity.
What is the horizontal distance x to the base of the wall supporting the mirror of the near point on the floor that can be seen reflected in the mirror . What is the speed of the third fragment? Overlook effects due to gravity.
A plane first moves from the origin to point A located at 170 km in direction of 30 degree north of east after that it flies 150 km 20 degree west of north to point B finally it flies 195 km due west to point C. find the location of C from origin.
What is an electric field between the plates? Towards which plate is it directed.
Compute magnitude and direction of magnetic field produced by the moving belt at a point just above its surface .
A bullet of mass 0.0022 kg initially moving at 496 m/s embeds itself in a large fixed piece of wood and travels 0.64 m before coming to rest. Imagine that an acceleration of the bullet is constant.
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