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A 90.6-kg climber is scaling the vertical wall of a mountain. His safety rope is made of a material that, when stretched, behaves like a spring with a spring constant of 1.52 x 103 N/m. He accidentally slips and falls freely for 0.620 m before the rope runs out of slack. How much is the rope stretched when it breaks his fall and momentarily brings him to rest?
linda pulls a sled with force 89 newtons at 30 degrees east of north. find the resultant force and direction
A -10.5 nC point charge and a + 21 nC point charge are 16.5 cm apart on the x- axis. where the electric potential is zero
An electric utility company supplies a customer's house from the main power lines (120 V) with two copper wires, find the power delivered to the customer
a lead shot is projected from the ground level with a velocity u at an angle o to the horizontal. given that the times
while you take a bath, how many kilograms of hot water (50°C) have to you mix with cold water (11 °C) so that the temperature of the bath is 36 °C? The total mass of water (hot plus cold) is 194 kg. Ignore any heat flow between the water and its e..
A 1250 kg car is moving at 23.2 m/s. Then, 323 kJ of work is done on the car to increase its speed. What will be the car's new speed
What is the friction force that acts on the firefighter. find Max wavelength and Min wavelength.
question1calculate approximately the average power of a water wave when it hits chest of an adult standing in the water
Two particles oscillate in simple harmonic motion with amplitude A, about the centre of a common straight line of length 2A. How far apart are the particles from each other
what is its potential energy relative to the bottom of the shaft? how fast will the payload be traveling when it reaches the bottom of the shaft? convert your answer to mph for a comparison to highway speeds.
A 1.00-kg block of ice is placed against a horizontal spring that has force constant k = 175 N/m and is compressed 0.021 m. What is the speed of the block after it leaves the spring
A 0.145- kg baseball traveling 36.10 m/s is stopped in 0.143 s by a catcher's mitt. What is the average acceleration of the ball
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