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You are playing raquetball at the rec center. When you are 10 m away from the wall you hit a ball 24 m/s towards the wall at an angle of 30 degrees. Ignore any affects due to air resistance.
Part A How long is the ball in the air before it hits the wall?
Part B How high above the launch point does the ball hit the wall?
A bird, starting from its nest (we'll call that the origin), flies 24.0 km due southeast. It then changes directions and flies 26.0 km in a direction 60° north of east. Find the magnitude and direction of its resultant displacement.
A 45.0kg girl is standing on a 170 kg plank. The plank, originally at rest, is free to slide on a frozen lake, which is a flat, frictionless surface. The girl begins to walk along the plank at a constant velocity of 1.53m/s relative to the plank.
Three resistors having resistances of R1 = 1.74? , R2 = 2.57? and R3 = 4.83? respectively, Find the voltage across each resistor
A novice skier starting from rest slides down a frictionless 32 degree incline whose vertical height is 125 meters
A stunt man (69.3 kg) swings across a valley at the end of a 28.2 m long rope. Find the tension in the rope at the bottom of the swing
Consider a system composed of a mixture of 2.50kg of ice and 50 gr of liquid water and a small separate container of finely powdered salt. This physical system is contained in a fully insulated container that prevent.
An electron is trapped in a one-dimensional infinite well and is in its first excited state. What is the width of the potential well
Force F = (-5.0 N) i hat + (5.0 N) j hat acts on a particle with position vector r = (-3.0 m) j hat + (5.0 m) k hat. What is the angle between the directions of force and torque
The position of an air-track cart that is oscillating on a spring is given by the equation x = 12.4 cos[(6.35 s-1)t] . At what value of t after t= 0.00s in the cart first located at x = 8.47 cm ?
A wheel with a radius of 0.25 m rolls without slipping on a level road at a constant speed of 1.1 m/s for 2.0 min
It takes 25 turns to drive a screw completely into a block of wood. Because the friction force between the wood and the screw is proportional to the contact area between the wood, what is the total work (in J) required to drive in the screw
A 70-kg bicyclist coasts down a hill that makes a 10degree angle with the horizontal at a speed of 10 m/s. how fast can he go up the hill
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