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If the velocity of a 3.0 kg body changes from v1= (3.0î , 5.0j) m/s to v2= (0î, 7.0j) m/s in a time interval of 2.0s.
a) What is the average force that acts on the body?
b) What is the impulse delivered to the body?
A large crate is pulled along a horizontal path at a constant speed by a cable that is inclined at an angle of 20° with respect to the horizontal. How far will the crate move in 10 seconds
A loudspeaker produces a musical sound by means of the oscillation of a diaphragm whose amplitude is limited to 2.0 μm. At what frequency (in Hz) is the magnitude a of the diaphragm's acceleration equal to g?
A ball is shot from the ground into the air. At a height of 9.60 m, the velocity is observed to be v = (7.70 m/s) i + (7.00 m/s) j. What is the maximum height that the ball will rise
A puck on a frictionless, horizontal air table is attached to a string that passes down through a hole in the table. what is the new speed of the puck
Pick at least two sample cases and for each sample case include both a physical reason you'd expect fo to go up or down (think about how sound waves are squishing together or spreading apart) and a mathematical reason (like will picking a + in the..
During 5 successive 0.97 min intervals, a runner moves at the following constant speeds: 0.436 km/min, 0.250 km/min, 0.160 km/min, 0.160 km/min, and 0.320 km/min. calculate the total distance traveled and the average speed.
A 100kg truck is pulled across rough ground by a rope angled at 30 degrees to the horizontal. The coefficient of sliding friction is .34. Find the maximum Acceleration without the truck leaving the ground.
A typical wall outlet voltage is 120 volts in the United States. calculate the number of turns on the secondary coil of the adapter transformer
Romeo is chucking pebbles gently up to Juliet's window, and he wants the pebbles to hit the window with only a horizontal component of velocity. he is standing at the edge of a rose garden 4.5 m below her window and 5 m from the base of the wall. How..
A 600 turn solenoid, 25 cm long, has a diameter of 2.8 cm. A 10 turn coil is wound tightly around the center of the solenoid. If the current in the solenoid increases uniformly from 0 to 5.0 A in 0.48 s, what would be the induced emf magnitude in the..
What is the largest index of refraction that the liquid can have, such that none of the light is transmitted into the liquid and all of it is reflected back into the solid
The vector shows the weight of the stone. Complete the vector diagram showing another vector that results in zero net force on the stone. Illustrate what is the conventional name of the vector you have drawn?
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