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A man whose mass is 80kg on the earth's surface is in a spacecraft at a height of 2 Earth radii above the earth's surface. At that height:
a) what is his mass there,
b) what is his weight there.
c) what is the acceleration due to gravity.
What is the relationship between current and magnetic force, What is the relationship between the length of the wire and the magnetic force
An object falls because of gravity at a rate of -9.80 m/s2 (- sign is indicative of a downward direction) for 10.00 Seconds. If it starts from rest (vo= 0) and its position starts from do= 0.0, where is it 10.00 Seconds later.
Two balls of the same mass are accelerated by different net forces such that one ball gains a velocity twice that of the other ball in the process. Is the work done by the net force acting on the faster moving ball twice that done on the slower mo..
A large steam pipe is covered with 1.3-cm-thick insulating material of thermal conductivity 0.25 J/(s m °C). How much energy is lost every second
what is the volume of an iron atom. What is the ratio of the mass density of girder A to the mass density of girder B.
A softball of mass 0.200kg that is moving with a speed of 7.0m/s collides head-on and elastically with another ball initially at rest, Calculate the mass of the target ball
A solid concrete block weighs 250 N and is resting on the ground. Its dimensions are 0.400 m x 0.190 m x 0.0880 m. What is the smallest number of whole bricks
A playground merry-go-round has a disk-shaped platform that rotates with negligible friction about a vertical axis. determine how fast will the disk be turning
The Mariana trench is located in the Pacific Ocean at a depth of about 11 000 m below the surface of the water. For comparison, determine the weight of a jetliner whose mass is 6.04 × 105 kg
In July 2005, NASA's "Deep Impact" mission crashed a 372-kg probe directly onto the surface of the comet Tempel 1, hitting the surface at 37000 km/h. What change in the comet's velocity did this collision produce
A battery has an emf of 7.5 V and 16 A of current flows through it. What power is this battery supplying
A converging lens (f1 = 24.0 cm) is located 56.0 cm to the left of a diverging lens (f2 = -28.0 cm). How far is the object from the converging lens
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