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two sailboats are approaching a harbor the velocity of the sloop relative to the schooner is 280 ms in a direction
find the theoretical value for the acceleration for an object sliding down an incline plane ignore friction your answer
a nylon guitar string has a linear density of 70 gm and is under a tension of 155 n the fixed supports are distance d
the energy released by alpha decay in a 5000-g sample of 238 pu is to be used to heat 450 kg about 1 gallon of water
block a sits on a table and is in thermal equilibrium with the table the internal energy of block a is 100 j block b
caught in an avalanche a skier is fully submerged in flowingsnow of density 96kgm3 assume that the average density of
a 5kg mass starts from rest and slides down on an inclined plane hits a bumper at the bottom of the inclined plane and
you want to build a grandfather clock with a pendulum aweight on the end of a light cable that has one second between
a net force of 132 n acts on a baseball m140g for a period of 0045s what is the magnitude of the change in momentum of
two protons radius 10-15 m are headed directly toward each other with equal speeds use the principle of energy
a light beam is incident on heavy flint glass n 165 atthepolarizing angle calculate the angle of refraction for the
a proton moving to the right at 62 times 105 ms-1 enters a region where there is an electric field of 62 knc-1 directed
a 0275 kg puck initially at rest on a frictionless horizontal surface is struck by a 0220 kg puck that is initially
a satellite moves in a circular orbit around the earth at aspeed of 4260 ms determine the satellites altitude above
a man throws a rock from the top of a cliff that is 500 m above ground level with an initial speed of 270 ms at an
the shaft of a pump starts from rest and has an angularacceleration of 300 rads2 for 180s at the end of thisinterval
a a particle with charge 52 coulombs and velocity v 59 ms enters a region in which the magnetic field of magnitude 3 t
a resonant circuit using a 240 muf capacitor is to resonate at 155 khz the air-core inductor is to be a solenoid with
if astronauts could travel at v 0950c we on earth would sayit takes 4200950 442 years to reach aplha centauri 429light
you throw a ball with a speed of 25ms at an angle of 400deg above the horizontal directly toward awall the wall is 220
using a twine with a density of 0002 kgm and a curved rod with a space of 1 m between the ends describe how you would
what equation is used to get the energy density between plates if we are given the electric field vm area of capacitor
one student playing an instrument with a frequency of 256 hz noticed a beat frequency of 10 hz between himself and
a person cooks a meal in a 30-cm-diameter pot that is covered with a well-fitting lid and lets the food cool to the
a skier is initially stationary but then accelerates at 16 ms2 down a hill that is inclined 21deg below the horizontal