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Question: A rock climber stands on top of a 60 m high cliff hanger a pool of water. He throws two stones vertically downward 1.0 s apart and observes that they cause a single splash. The initial speed of the first stone was 2.5 m/s. How long after the release of the first stone does the second stone hit the water? What was the initial speed of the second stone? What is the speed of the first stone as it hits the water? What is the speed of the second stone as it hits the water?
A simple pendulum is a mass at the end of a light string. If thelength of the string is 1.4 m and the mass is released from rest ata point where the string makes an angle of 20 degrees with the vertical, what is the maximum speed of the pendulum?
a copper rod is sliding on two conducting rails that make an angle of 19deg with respect to each other as in the
Between each pair of vertebrae in the spinal column is a cylindrical disc of cartilage. How far does the top surface move relative to the bottom surface
What is the volume flow rate through the hole in L/min. What is the rate in mm/min at which the water level in the tank will drop if the water is not replenished?
The length of a simple pendulum is 0.72 m, the pendulum bob has a mass of 295 g, and it is released at an angle of 12° to the vertical. What is the pendulum bob's speed when it passes through the lowest point of the swing
Diffraction grating produces its third-order bright band at an angle of 79.4 degrees for light of wavelength 731nm. Find the angular location of the first-order bright band
a highey curve forms a section of a circle. a car goes around the curve. its dashboard compass shows that the car os
The weight of a star is usually balanced by two forces: the gravitational force, acting inward, and the force created by nuclear reaction, acting outward. compute the radius of the geostationary orbit for this neutron star?
A car is traveling at 95.0 km/hr when it collides with a stone wall. The car comes to rest after the first 30.0 cm of the car is crushed. what would the average force acting on the driver
The kinetic friction force between a 60.0-kg object and ahorizontal surface is 50.0 N. what distance will it slide before coming to a stop
Based on flowrate and pressure rise information, estimate the power output of a human heart.
what is the minimum potential difference that must be applied to an x-ray tube to knock a k-shell electron completely
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