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1. What would be the path of the Moon if somehow all gravitational forces on it vanished to zero?
2. Larry weighs 300 N at the surface of Earth. What is the weight of Earth in the gravitational field of Larry?
3. Why do the passengers in high- altitude jet planes feel the sensation of weight while passengers in an orbiting space vehicle, such as a space shuttle, do not?
4. If the mass of Earth increased, your weight would correspondingly increase. But, if the mass of the Sun increased, your weight would not be affected at all. Why?
5. The value of g at erath's surface is about 9.8 m/s2. What is the value of g at a distance of earth's twice radius?
q1. according to the guinness book of world records 1990 edition p. 169 the highest rotary speed ever attained was 2010
An aluminum-alloy rod has a length of 10.009 centimeter at 19.800°C and a length of 10.016 centimeter at the boiling point of water. Determine the length of the rod at the freezing point of water
the plates of a parallel-plate capacitor are 3.28mm apart and each has an area of 12.2 cm2. each plate carries a charge
A 0.17 kilogram baseball is launched from the roof of a building15 meter above the ground. Find the speed of the ball as it strikes the ground
A sodium surface is bombarded by photons that have a wavelength of 200 nm. Compute the energy of the photons
A 20 kilogram greased pig is at the top of a 3.2 meter high frictionless hill moving with a speed of 6.0 m/s. Determine what is the pig speed when it gets to the bottom of the hill
An ideal gas has its pressure cut in half slowly, while being kept in a container with rigid walls. How much work was done during this process
The front and rear sprockets on abicycle have radii of 9.00 cm and 5.10 cm, respectively. Theangular speed of the front sprocket is 9.40 rad/s. Find the linear speed (in m/s) of the chain as it moves between the sprockets
Two spherical shells have a common center. A -1.00x10-6 C charge is spread uniformly over the inner shell,which has a radius of 0.050 m. A +5.00 x10-6 C charge isspread uniformly over the outer shell, which has a radius of 0.15m.
Suppose a tank contains 636 m3 of neon (Ne) at an absolute pressure of 1.01×105 Pa. The temperature is changed from 293.2 to 295.8 K
An electromagnetic wave in a vacuum has an instantaneous magnetic field strength of 0.000000735 T at a certain point. What is the instantaneous electric field strength of the wave at this point
q1. a 9.7 v battery is connected to a bulb whose resistance is 1.3. how many electrons leave the battery per minute?q2.
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