Physics, 11.12.2019 04:31 asdf334asdf334
Achair of mass 14.0 kg is sitting on the horizontal floor; the floor is not frictionless. you push on the chair with a force f = 43.0 n that is directed at an angle of 38.0 degrees below the horizontal and the chair slides with constant velocity along the floor.(a) draw clearly labeled free-body diagram for the chair.(b) use your diagram and newton's laws to calculate the normal force that the floor exerts on the chair.(c) find the coefficient of kinetic friction.
Answers: 3
Physics, 21.06.2019 17:00
What would the difference of spectral lines emitted by hydrogen gas in distant galaxies which is normally found at a wavelength of 21 cm on earth, be observed at 21.1 centimeters?
Answers: 2
Physics, 21.06.2019 23:20
Acharge of 8.4x10^-4 c moves at an angle of 35 degrees to a magnetic field that has a field strength of 6.7x10^-3 t. if the magnetic force is 3.5 x10 ^-2 n, how fast is the charge moving?
Answers: 1
Physics, 22.06.2019 13:00
Nacidified solution was electrolyzed using copper electrodes. a constant current of 1.18 a caused the anode to lose 0.584 g after 1.52 ✕ 103 s. given that the charge of an electron is 1.6022 ✕ 10−19 c, calculate avogadro's number. assume that copper is oxidized to cu2+ ions.
Answers: 1
Physics, 22.06.2019 16:10
Amass weighing 24 pounds, attached to the end of a spring, stretches it 4 inches. initially, the mass is released from rest from a point 8 inches below the equilibrium position. find the equation of motion. (use g = 32 ft/s2 for the acceleration due to gravity.)
Answers: 1
Achair of mass 14.0 kg is sitting on the horizontal floor; the floor is not frictionless. you push...
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