Calculate the force of gravity between a human child
Calculate the force of gravity between a human child (mass = 28 kg) and the planet Mars (mass = 6.4 1023 kg), when Mars is at its closest to Earth (distance = 8. 1010 m).
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Find the gravitational potential energy of an 66.5-kg person standing atop Mt. Everest, at an altitude of 8848 m. Use sea level as the location for y = 0.
What is the strength of the magnetic field required to exactly balance the weight of the proton and keep it moving horizontally?
A single-turn circular loop of radius 8 cm is to produce a field at its center that will just cancel the earth's field of magnitude 0.7 G directed at 70 below the horizontal north direction. Find the current in the loop.
What is the value of R4 for balance? If R4 = 200 ohm and the bridge is driven with a source of 200 V. What is the open circuit voltage?
Two 9.0 cm diameter charged disks face each other, 20 cm apart. Both disks are charged to - 80 nC. What is the electric field strength at the midpoint between the two disks?
Draw the forces acting on your roommate the instant before slippage. Include a coordinate system. You know the values of m, g, r, and v.
The system is balanced by a support that is 0.30 m from the left end of the plank. How far to the right of the support is the plank's center of gravity?
The resistance of the tungsten wire is 3.000 W at 20°C and increases to 4.850 W as the indium starts to melt. atungsten = 4.50 ´ 10-3 (°C)-1. What is the melting temperature of indium?
A stone is allowed to fall from the top of tower 100m high at the same time another stone is projected vertically upwards from the ground with a velicity of 25m/s.
At once the he see what looks like another match about 4 m away from him. As it turns out, a mirror hangs on one wall of the room. how far is Gustav from he wall with the mirror?
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