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How many newtons of force would be required to stretch a spring 12 cm if, when attached to a 500 g mass, its frequency of vibration is 3.45 Hz?
An ideal gas expands at a constant total pressure of 5.4 atm from 405 mLto 668 mL. Calculate the total heat flow into the gas
A 140g coin sits on a horizontally rotating turntable. The turn table makes on revolution each 2 s. the coin is located 8.00 cm from the axis of rotation of the turntable. The acceleration of gravity is 9.81 m/s/s. what is the frictional force acting..
Some object moves 100.0 m at an angle of 36° west of south. During this motion, a 92.0 N force acts on the same object, what is this force's orientation
A glass sheet is covered by a very thin opaque coating. In the middle of this sheet there is a thin scratch 1.25×10-3mm thick. The sheet is totally immersed beneath the surface of a liquid.
A beam of hydrogen molecules (H2) is directed toward a wall, at an angle of 45° with the normal to the wall. What is the beam's pressure on the wall
A 1000 kilogram safe is 2.0 meter above a heavy-duty spring when the rope holding the safe breaks. Find what the spring constant of the spring
The pion has an average lifetime of 26.0 ns when at rest. In order for it to travel 15.0 m, How fast must it move
A 1.9 kg block is attached to a spring by spring constant 12 N/m. While the block is sitting at rest, a student hits it with a hammer and almost instantaneously gives it a speed of 40 cm/s. What is the amplitude of the subsequent oscillations?
A lens for a 35mm- camera has a focal length given by = 51mm, What is the magnification of the image on the film
if a ball is dropped from a cliff with an initial velocity of 25ms with a direction of 40 degrees out from the y axis
There are two identical, positively charged conducting spheres fixed in space. The spheres are 45.4 cm apart, find the initial charge on each sphere
A person desires to reach a point that is 3.40 km from her present location and in a direction that is 350 north of east. However, she must travel along streets that are oriented either north-south or east-west. What is the minimum distance she mi..
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