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Q1. In the high jump, Fran's kinetic energy is transformed into gravitational potential energy without the aid of the pole.With what minimum speed should Fran leave the ground in order to lift her center of mass 1.95 m and cross the bar with a speed of 0.70 m/s?
Q2. A 0.255 kg puck, initially at rest on a frictionless horizontal surface, is struck by a 0.200 kg puck that is initially moving along the x axis with a velocity of 2.06 m/s. After the collision, the 0.200 kg puck has the speed of 1.02 m/s at an angle of q = 52.7o to the positive x axis. Find out the velocity of the 0.255 kg puck after the collision.
A particle undergoes a displacement Δr of magnitude 57 m in a direction 25° below the x axis. Express Δr in terms of the unit vectors x and y.
Calculate the pressure at the center of pipe A. Suppose T = 10?C.
Write down an equation for the radial component
A daredevil on the motorcycle leaves the end of a ramp with a speed of 36.0 m/s. If his speed is 34.20 m/s while he reaches the peak of the path, what is the maximum height that he reaches? Ignore friction and air resistance. In meters
What is braking distance for the first train
Extimate the thickness of a glass at a bright fringe and the Brewster's angle for light traveling from air to glass.
A 50.0 g copper calorimeter contains 260 g of water at 22.0°C. How much steam ought to be condensed into the water if the final temperature of system is to reach 42.0°C.
What is the speed of bulky cart after the collision
Block A in Figure is given an initial velocity of 6 m/s up the incline. Declare of a block on a inclined plane.
FInd the quantities and volume of liquid in each tank and predicting the damage or danger caused in the process.
Four identical masses of mass 710 kg each are placed at the corners of a square whose side lengths are 15.0 cm. What is the magnitude of net gravitational force on one of the masses, due to the other three.
Suppose you wish to fabricate a uniform wire out of 2.6 g of copper. If the wire is to have a resistance of R = 0.25 and if all of the copper is to be used, what must be the length of the wire in m and the diameter of the wire in mm.
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