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An object falls from a building that is 35 m above the ground.Itfalls directly into a truck, moving with constant velocity thatis6 m from the point of impact when the object is released.
a). How long does it take for the object to reach the ground?
b). What is the speed of the truck?
An electric field of 130000 N/C points due west at a certain spot. What is the magnitude of the force that acts on a charge of -9.9C at this spot
An electron that has a horizontal initial speed of 4.50 x 10^6 m/s enters a region that has an electric field of 120 V/m pointing vertically upward. How long does the electron take to travel 9 cm in the horizontal direction
Find the rms current, phase angle and rms voltage across R & L, in an RL circuit when a 58 Hertz 123 Volt rms ac voltage is applied, where R=1.80 kΩ and L=350 mH
A motorcycle starts with a constant acceleration of 3.0 m/s^2. At just that instant a buick with a constant speed of 20 m/s passes the motorcycle, How fast is the motorcycle travelling when it overtakes the buick
Cowboy joe wishes to shoot his assaiat by ricocheting a bullet off a mirrored metal plate. To do so, must he simply aim at the mirrored image of his assaiant? Explain.
A car moving at 110 km/hr slams into a brick wall. If the hood of the car crumples 1.25 m during the crash, what is the magnitude of the acceleration of the car during the crash
A doubly charged helium atom, whose mass is 6.6*10^-27 kg, is accelerated by a voltage of 3000 V. What will be its radius of curvature in a uniform 0.300 T field
a resistor is known to obey ohms law. when there is a current of 1.72 a in the resistor it has a voltage drop across
A 14 g bullet travelling at 247 m/s is fired into a 0.459 kg wooden block anchored to a 100 N/m spring. How far is a spring compressed to the nearest thousandth of meter.
Your roommate is working on his bicycle and has the bike upside down. What is the pebble's speed? What is the pebble's acceleration?
A violin string which is 30.4 cm long is tuned so that its pitch isconcert A which is 440Hz. I can effectively shorten the string byplacing my finger on it and pressing it down.
Determine the magnitude of the torque that is being exerted on the loop and the direction the loop will want to rotate. Indicate the direction of rotation through the diagram.
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