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A sky diver steps from a high-flying helicopter. If there were not air resistance, how fast would she be falling at the end of a 12 second jump?
ulie throws a ball to her friend Sarah. The ball leaves Julie's hand a distance 1.5 meters above the ground with an initial speed of 11 m/s at an angle 44 degrees; What is the time the ball is in the air
A satellite is circling a small planet at a speed of 3.60 rev/day. If the satellite's orbit has a diameter of 30,000 km, how fast is the satellite moving
How is relative motion between the field and coil induced? What controls do you have for changing the relative motion? What is the relationship between the units of RPMand radians per second
Iron atoms have been detected in the sun's atmosphere, some with many of their electrons stripped away. What is the net electric charge (in coulombs) of an iron atom
A tuning fork with a frequency of 440Hz is held just above the top of a uniform glass tube containing water, What is the speed of sound in air
A coin is located 20.0 cm to the leftof a converging lens (f = 16.0 cm). A second, identicallens is placed to the right of the first lens, Find the separation between the lenses
A cyclist starts from rest and pedals so that the wheels make 7.6 revolutions in the first 4.9 s. What is the angular acceleration of the wheels
A 500 lines per mm diffraction grating is illuminated by light of wavelength 510nm. How many diffraction orders are seen
A soccer player kicks a ball from ground level with an initial velocity of 25 m/s at an angle of 30° above the horizontal. What angle does the velocity vector make with the horizontal
A small sphere with mass 2.60g hangs by a thread between two large parallel vertical plates 5.00cm apart. What potential difference between the plates
A weight lifter does a series of arm raises while holding a 7.50 kg weight. Her forearm (including the hand) starts out horizontal and pivots to a vertical position about her below. What is the change in its gravitational potential energy with each..
Laser light with a wavelength of 540 nm is directed through one slit or two slits and allowed to fall on a screen 7.70 m beyond. find the distance between their centers
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