Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Active Tutors
Asked Questions
Answered Questions
a pendulum consists of a 20 kg stone swinging on a 40 mstring of negligible mass the stone has a speed of 80 ms when
a woman stands on a scale in a moving elevator her massis 600 kg and the combined mass of the elevator and scale is
a body moving at 500c with respect to an observer disintigratesinto two fragments that move in opposite directions
a factory workeraccidentally releases a 175 kg cratethat was being held at rest at the top of a 3 m long ramp inclined
a 70kh man jumping from a window lands in an elevated firerescue net 110 m below the window he momentarily stops when
in a nuclear power plant the reactor produces 361 c steam that is used to power the steam turbines which generate 2202
a weight of mass m1 is on africtionless ramp which makes angle theta with respect to thehorizontal this mass starts at
a 144 kg monkey wrench is pivoted at oneend and allowed to swing as a physical pendulum the period of itsmotion is 0860
computethe maximum height that a projectile can reach if it is launchedwith speed v o at angle thetarelative to the
a helicopter is moving horizontally to the right at aconstant velocity the weight of the helicopter is w 53800n the
a rock is thrown from the edge of a cliff to the ground 160 m below the rock has an initial velocity of 185 ms directed
two men pushing a stalled car generate a net force of 690nfor 66 sec what is the final momentum of the
during a rockslide a 760 kg rockslides from rest down a hillside that is 500 m long and 300 m high the coefficient of
a small boat is headed for a harbor 34 km directly northwest of its currentposition when it is suddenly engulfed in
a 2900 kg truck traveling northat 40 kmh turns east and acceleratesto 51 kmha what is the change in the trucks kinetic
a 58 kg man is riding on a 50 kg cart traveling at a speed of 31 ms he jumps off with zero horizontal speedrelative to
the heating element of a clothes dryer has a resistance of127 ohms a voltage of 240 v is connected across the
the peak value of the ac current in a circuit is 60 a and peak value of the ac voltage applied to the circuit is 47 v
in the bible noah is instructed to build an ark 300 cubitslong 500 cubits wide and 300 cubits high historical
a 650kg elevator starts from rest it moves upward for 300s withconstant acceleration until it reaches its cruising
a 500 kg student climbs a 500 m long rope and stops at the topa what must her average speed be in order to match the
a particle moves horizontally in uniform circular motion over ahorizontal xy plane at one instant it moves through
at time t1 200 s the acceleration of aparticle in counterclockwise circular motion is 300 ms2 i 600 ms2 j it moves
a pump is to lift 180 kg of water per minute through a heightof 360 m what output rating watts should the pump