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a. You throw a bouncy ball directly down toward the ground. When it leaves your hand, 1 m above the ground, it is moving at 5 m/s. What is the ball's maximum height after it bounces?
b. You and your sled (m = 80 kg) start from rest at the top of a 7 m tall hill, slide down, and travel up to the top of the next hill, 3 m tall. At the peak of the second hill, you are traveling 1 m/s. How much work was done on you by friction?
What is the period of the motion.
Old MacDonald had a farm, and on that farm he had a gate (see below). The gate is 3m wide and 1.8m high, with hinges attached to the top and bottom. The guy wire makes an angle of 300 with the top of the gate and is tightened by a turn buckle to a..
A constant horizontal force a pushes a 4.40kg FedEx package across a frictionless floor on which a xy coordinate system has been drawn. The package's x and y velocity components versus time t.
If the coefficient of static friction is 0.951, illustrate what is the maximum speed that the car can take without skidding?
A current of 18 Ampere runs through the Parallel Wire Apparatus. What is the anticipated mass (in milligrams) for balancing the frame-balance
The intensity of a cylindrical laser beam is 0.800 {rm W}/ {rm m} ^ {2}. The cross-sectional area of the beam is 3.0 times 10^ {- 4} {rm m} ^ {2} and the intensity is uniform across the cross section of the beam.
Assume that the partner moves on a circle that has a radius of 6.50 m. At a swinging speed of 4.45 m/s, what force must the man apply to his partner in the straight-down position?
A 2.00 syringe has an inner diameter of 5.00, a needle inner diameter of 0.270, and a plunger pad diameter (where you place your finger) of 1.20. A nurse uses the syringe to inject medicine into a patient whose blood pressure is 140/100. Suppose the ..
A rocket of total mass M and with burnout mass 0.20 M attains a speed of 3 200 m/s after starting from rest in deep space. Evaluate the exhaust velocity of the rocket?
A 1.50 multiplied by 103kg car starts from rest and accelerates uniformly to 18.50m/s in 13s. Assume that air resistance remains constant at 400N during this time.
After the interaction, the particles (which can't be distinguished) are observed moving at angles 55.3° and 34.7°, both angles being measured with respect to the original direction of motion. Illustrate what are the final speeds of the particles?..
For all parts, assume that the "island" refers to the point at a distance D from the point at which the package is released. Ignore the height of this point above sea level. Assume that the acceleration due to gravity is g = 9.80m/s^2. What is the..
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