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a. A pole-vaulter of mass 65.4 kg vaults to a height of 5.77 m before dropping to thick padding placed below to cushion her fall. Find the speed with which she lands?
b. If the padding brings her to a stop in a time of 0.485 s, what is the average force on her body due to the padding during that time interval?
A stream of protons and electrons are shot horizontally (from the left edge of the page to the right) with a speed of 1.2 x 10^6 m/s, What is the radius of the curvature and the direction for the curvature that each of these particles undergoes
A small, 1.70-mm-diameter circular loop with R = 1.30×10?2? is at the center of a large 100-mm-diameter circular loop. Both loops lie in the same plane
A 0.33kg block is located 0.2 m from the center of a turntable. The coefficient of static friction between block and surface of the turntable is 0.44.
A projectile is fired with an initial speed of 60.7 m/s at an angle of 35.4 above the horizontal on a long flat firing range. Determine the total horizontal distance covered
As a stunt coordinator with a background in physics, If Bear can make it far enough across (at least 12 m from where he starts), he can drop down onto the river bank below. How far will he travel across
A person sees a distant lightning strike, then 4.5 seconds later he hears the thunder clap. If it is 35 degrees Celsius, how far away was the lightning strike
The coefficient of kinetic friction between her skis and the snow.
A hydraulic lift is used to jack a 920 kg car 42 cm off the floor. The diameter of the output piston is 18 cm, and the input force is 350 N. What is the area of the input piston
A model rocket launches with an initial velocity of 6 m/s, at an angle of 88 degrees (with respect to the horizon). What is the maximum height attained by the rocket
The air table is approximately 25 cm squared. If the incline has a rise of 1 cm over the distance, what is the maximum velocity up the slope
A lightning bolt transfers 6.0 coulombs of charge from a cloud to the ground in 2.0 10-3 second. What is the average current during this event
Blue light of wavelength 450 nm passes through a 0.20-mm wide slit and illuminates a screen 1.2 m away. How wide is the central maximum of the diffraction pattern
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