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a spring-loaded pellet gun is designed to fire 340 g projectiles horizontally at a speed of 390 msa if the spring is
you have one heavy cart at 15kg and the lighter one at 10kg neglect friction the heavy cart starts at rest you push the
a photon with wavelength 4 x 10-15m converts to a muonantimuon pair the rest mass energy of the muon and the antimuon
you take a set of measurements for the wavelengths and frequencies of standing waves on a string that is under a
an astronaut speedo travels to a distant planet and back with speed 07c he is 30 yrs old when he departs and 50 years
if the gas is irradiated with monochromatic light of 466 nm wavelength what is the wavelength of the raman scattered
based on epa estimated carbon credits value of 70 per metric ton of carbon in 2050 estimate the financial value of the
a laser beam shines onto a slit of width 01 mm and the diffraction pattern is projected onto a screen 2 m from the slit
a car traveling on a flat unbanked circular track accelerates uniformly from rest with a tangential acceleration of 220
in a certain library the first shelf is 150 off the ground and the remaining four shelves are each spaced 320 above the
the diameters of the main rotor and tail rotor of a single-engine helicopter are 767 m and 105 m respectively the
an archer pulls her bowstring back 0370 m by exerting a force that increases uniformly from zero to 227 na what is the
a block of mass 180 kg is pushed 290 m along a frictionless horizontal table by a constant 160 n force directed 270deg
a pole vaulter vaults over the bar and falls onto thick padding he lands with a speed of 98ms the padding then brings
balance the meter stick at its center of gravity and hung an unknown mass eg your keys at the 90 cm mark place the
three negative charges of equal magnitudes are positioned along the x-axis at x -a x0 and x a respectively the charge
balance the meter stick at its center of gravity and hang an unknown mass eg your keys at the 90 cm mark place the
a ball thrown straight up at an initial speed of 140ms reaches a maximum height of 76m what fraction of the balls
a bicyclist climbs a 20km long hill that makes an angle of 70deg with the horizontal the total weight of the bike and
an 18 g rifle bullet traveling 200 ms buries itself in a 35 kg pendulum hanging on a 28 m long string which makes the
the motor of a fan turns a small wheel of radius rm 223 cm this wheel turns a belt which is attached to a wheel of
two window washers bob and joe are on a 300 m long 405 n scaffold supported by two cables attached to its ends bob
on a frictionless horizontal air table puck a with mass 0255 is moving toward puck b with mass 0369 which is
an electric motor rotating a workshop grinding wheel at a rate of 109 102 revmin is switched off assume the wheel has a