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Q. A space traveler weighs 691 N on Earth. What will the traveler weigh on another planet whose radius is 3 times that of earth and whose mass is 4 times that of earth?
Q. Two wires are identical, except that one is aluminum and one is iron. The aluminum wire has a resistance of 0.18 . What is the resistance of the iron wire?
The distance from the point on the surface of Earth to a point on a surface of the moon is measured by aiming a laser light beam at the reflector on the surface of moon and measuring the time required for the light to make a round trip.
A swimmer heads directly across a river, swimming at 1.9 m/s relative to the water. She arrives at a point 34 m downstream from point directly across the river, which is 80 m wide.
A piston, A, as shown below, has a diameter of 0.81 cm. A second piston, B has a diameter of 3.9 cm. conclude the force, F, necessary to support the 508.0 N weights in the absence of friction.
define the speed of the particle when the string is parallel to the electric field.
A solid cylinder of radius 0.35 m is released from rest from a height of 1.8 m & rolls down the incline as shown. Find the angular speed of the cylinder when it reaches the horizontal surface?
assume a spherical planet P has a uniform density of 4.72*10^3 kg/m^3 and a radius R=3604 km. For a parcel that weighs 64 N on the surface of the (spherical) earth.
A long solenoid has 80 turns/cm and carries current i. An electron moves within the solenoid in the circle of radius 3.10 cm perpendicular to the solenoid axis. The speed of an electron is 0.0330c (c = speed of light). Find current i.
Find the surface tension force on water inside a tube and height to which the water rises in the tube.
What is mass of the ice cube
What percentage of error in would be made if the moment of inertia of the pulley were avoid? Ignore friction in the pulley bearings.
A photon with a wavelength 4.40 scatters from an electron initially at rest. Find out the wavelength of the scattered photon when the scattered electron has its utmost kinetic energy. Kmax = 2.37*20^-14.
so hydrogen atoms have a thermal velocity of about 1000 m/s. How does the energy stored in the magnetic field compare with the kinetic energy in a given volume of space.
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