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A cannonball of mass 22.1 kg is shot into the air at an angle of 45 degrees with respect to horizontal. At the top of its ballistic trajectory, the cannonball suddenly explodes into two separate pieces, a smaller piece this is 1/3 the original mass, and a larger piece that is 2/3 the original mass. The smaller piece ends up landing right back at the spot where the cannonball was originally launched, 11.2 seconds after it was launched. How far from the launch site does the larger piece travel? You can neglect the effects of air resistance.
the magnetic flux through a circuit is reduced from 35 tm2 to 5 tm2 in 0.1s. the current induced in the circuit is 3.6
A pencil, 15.7 cm long, is released from a vertical position with the eraser end resting on a table. What is the angular speed of the pencil
A block is hung by a string from the inside roof of a car. When the car goes straight ahead at a speed of 29 m/s, the block hangs vertically down. Then the string makes an angle θ with the vertical. Compute the angle θ
A 2.0-m-long, 22-kg ladder is resting against a house wall, making a 32 angle with the vertical wall. The coefficient of static friction between the top of the ladder and the wall the coefficient is 0.00. Determine the minimal coefficient of stati..
vector identiteis can be proven by grinding them out in component form but it is more satisfying to use methods based
A wrench is placed at 30 cm in front of a diverging lens with a focal length of magnitude 10 cm. What is the magnification of the wrench
Gillian buys a pendulum clock at a discount store and discovers when she gets it home that it loses minutes each day.
They result in elastic collision. Car a is moving towards car b with velocity of 3 m/s and car b is moving toward car a with velocity of 11 m/s. what are the final velocities of cars
Toni has a mass of 43 kg and is moving with a speed of 11.6 m/s. Assume that air resistance is negligible. Find Toni's kinetic energy
the second person is initially at rest. Illustrate what are the velocities of the two people after the snowball is exchanged? Disregard the friction between the skates and the ice.
a particle of mass m starting with an initial velocity v0 is acted on by a force f mkv cv2 where k and c are
The average banana contains 0.436 g of potassium, and 0.012% of naturally occuring potassium is 40K, What is the activity of a freshly picked bunch containing four bananas
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