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a stretched string fixed at each end has a mass of 490 g and a length of 860 m the tension in the string is 490 na
the wave function of a standing wave on a string fixed at both ends is given by yxt002sin03xcos25t where y and x are in
a tube is partially and vertically inserted into a container of water two sequential resonant frequencies are heard
while standing in a low tunnel you push up on the ceiling with a force of 100n your mass is 70kg what force does the
you wish to launch a satellite that will remain above the same spot on earths surface this means the satellite must
apollo orbit around the moon was adjusted to an average orbit of 111km radius of the moon is 1785 km and the mass of
a car accelerates uniformly from rest and reaches a speed of229ms in895s assume the diameter of a tire is583cmwhat is
a golfer hits a shot to a green that is elevated 330 m above the point where the ball is struck the ball leaves the
a ball is rolled off a table that is 0481 m above the floor the ball is rolling with a velocity of 18 ms as it goes off
a 827-kn car is travelling at 731 mph when the driver decides to exit the freeway by going up a ramp after coasting 418
in 2000 nasa placed a small 240 kg satellite in orbit 5 km above a 1016 kg spherical asteroid of radius 88 kma
there are two answers required for this question an engine operates between temperatures of 280 k and 700 k at 620 of
an aluminum container which has a mass of 0350 kg holds 070 kg of water the water and container are both at 450degc ice
an ambulance is generating a siren sound at a frequency of 1800 hz the velocity of sound is 3350 ms the observer is
an incompressible fluid is flowing through a pipe with a constriction the pipe is on an incline with an angle of 300
you have a 35 m high platform that is level on top a spring launcher is located on the top so that it launches objects
a frictionless ramp is constructed so that it is at a 30 degree angle to the horizontal it is 32 meters long and 16
a 160 kg ball and a 720 kg ball are connected by an 800 cm long massless rigid rod the structure rotates about its
a 1500kg satellite is placed in an orbit 8000km above the surface of the eartha what is the gravitational acceleration
a car traveling 93 is 170 behind a truck traveling 74 how long will it take the car to reach the
a rocket is fired straight up and accelerates upward at 12 ms2 for 18 seconds the rocket then runs out of fuel and
a steam-powered electrical generator operates at a boiler temperature of 220 c and exhausts to a cooling reservoir at
a log is floating on swiftly moving water a stone is dropped from rest from a 720-m-high bridge and lands on the log as
a car slows down with an acceleration that has a magnitude of 35 ms2 while doing so it travels 128 m in the x direction
a ball is thrown with an initial speed of 600 ms at an angle of 30 degrees above the horizontal what is the balls