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A man fires a pistol exactly sideways from a moving car. The bullet is traveling at 214 meter per second. The car is traveling at 33.3 m/s or 70 mph. Determine what is the speed of the projectile?
Water is pumped out of a well at 5.000 m/s through a 8.000 cm diameter hose. The well is 30.00 ft deep. What power is needed by the pump
a block is moving down a hill at rest with height of h then it go on a loop, with r=0.5, if the block can comeplete this loop. What is the least height of the hill
A camera's zoom lens covers the focal-length range 38mm -138mm . You point the camera at a distant object and photograph it first at 38mm and then with the camera zoomed out to 138mm . Compare the sizes of its images on the two photos.
Use the following data to calculate the speed vp of comet Halley at perihelion. Calculate of the speed va of comet Halley at aphelion
question a parallel-plate capacitor has circular plates of radius 20 cm and a uniform electric field between the
A dragster starts from rest and accelerates down a track. Every tire has a radius of 0.320 meter and rolls without slipping. At a distance of 351 meter, Calculate the linear speed of the dragster
Water comes down the spillway of a dam from an initial vertical height of 170 m. What is the highest possible speed of the water at the end of the spillway
Two conductors are joined by a long copper wire. Thus A) each conductor must be at the same potential. B) no free charge can be present on either conductor. C) each conductor carries the same free charge.
A 10.4 kg block of metal is suspended from a scale and immersed in water, What are the forces exerted by the water on the top and bottom of the block
An RC circuit is made of a 2.2 kOhm resistor and a 0.001 mF capacitor. Find how long will it take for the charge to drop to 0.01 of the initial charge
A 0.150-kg frame, when suspended from a coil spring, stretches the spring 0.070m . A 0.200-kg lump of putty is dropped from rest onto the frame from a height of 30.0cm.Find the maximum distance the frame moves downward from its initial position.
two aluminum rods a and b are such that rod a has twice the length of rod b when they are at the same temperature. they
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