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A block of wood weighs 50.0 Newton in air. A sinker is attached to the block, and the weight of the wood-sinker combination is 220 Newton when the sinker alone is immersed in water. Finally, the wood-sinker combination is completely immersed and the weight is 160 Newton. Compute the density of the block.
In attempting to pass the puck to a teammate, a hockey player gives it an initial speed of 2.1 m/s. What minimum initial speed should the puck have been given so that it reached the teammate
The temperature near the top of Saturn's cloud layer is about 110K. The temperature at the top of earth's troposphere, at an altitude of about 20km, is about 220K. Calculate the rms speed of hydrogen molecules in both these environments
What is the difference between mass and weight? On earth, what is the weight of a 1 kg mass?
suppose that a particle accelerator is used to move two beams of particles in opposite directions. in a particular
A solid cylindrical disk has a radius of 0.45 m. It is mounted to an axle that is perpendicular to the circular end of the disk at its center. What is the mass of the disk
A glass window 0.35 cm thick measures 81 cm by 36 cm. How much heat flows through this window per minute if the inside and outside temperatures differ by 17° C
Water having a density of 1000kg/m^3 is flowing with a velocity of 3 m/s through a pipe. Determine the water velocity at the restriction
A communications satellite with a mass of 400 is in a circular orbit about the Earth. The radius of the orbit is 2.8×10^4 as measured from the center of Earth. Compute the weight of the satellite on the surface of the earth.
A satellite is in a circular orbit about the earth at a distance of one earths radius above the surface. What is the speed of the satellite
A positive charge of magnitude Q1 = 6.5 nC is located at the origin. A negative charge Q2 = -6.5 nC is located on the positive x-axis, Calculate the angle in degrees of the electric field at point P relative to the positive x-axis
you have 2 capacitors one with capacitance 10.3uf and the other of unknown capacitance. you connect the two capacitors
The cheetah can reach atop speed of114km/h (71mi/h). While chasing its prey in a short sprint, find the cheetah's average acceleration during the short sprint
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