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1. At low speed, air resistance is a force proportional to the velocity v of an object: F = -kv. Is this force conservative?
2. What is the escape velocity (in m/s) from the Sun (M =2.0E30 kg) of an object that is a distance 9.1E7 km from the center of the Sun?
A pilot flying from Honolulu to California flies at an airspeed of 300.0 m/s ("airspeed" - airplane's speed through the surrounding air) with her airplane pointed 67.0 degrees to the east of north. find the magnitude and compass bearingof the airpl..
A uniform plank of length 5 m and weight 231 N rests horizontally on two supports, with d = 1.43 m of the plank hanging over the right support. To what distance, x, can a person who weighs 446 N walk on the overhanging part of the plank before it ..
If a 1.00-kHz sound source moves at a speed of 48 m/s toward a listener who moves at a speed of 29.5 m/s in a direction away from the source, what is the apparent frequency heard by the listener
for n2 at 25oc and 1.00 atm calculate the number of collisions per second made by one molecule the number of collisions
The company adheres to a 60% dividend payout ratio and has a P/E ratio of 19. There are 21,000 shares of stock outstanding. Illustrate what is the amount of the annual net income for the firm?
During normal operation, a computer's hard disk spins at 5400 rpm. what is the average angular acceleration of the hard disk
a tennis ball is thrown from ground level with velocity vo directed 30 degree above the horizontal. if it takes the
rotates to provide an "artificial gravity" of 3.10 m/s2 for persons who walk around on the inner wall of the outer rim. Find out the rate of the wheel's rotation in revolutions per minute that will produce this effect.
question a multi-turn square loop of wire 2.0 cm on each side is oriented so that a 5.00 mt magnetic field makes a
Two boats are heading away from shore. Boat 1 heads due north at aspeed of 3.2 m/s relative to theshore. Relative to boat 1, boat 2 is moving 30° north of east at a speed of 1.8 m/s.
What is the wavelength of the third emission line?
A leather ball of circumference 75.1 cm and mass 583 g is forced to the bottom of a swimming pool and then released. Calculate the buoyant force on the ball
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