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A worker pushes a crate weighing 93 N up an inclined plane. The worker pushes the crate horizontally, parallel to the ground, The worker exerts a force of 85 N, One leg of the incline plane is 3.0 m high and the other is 4.0 m long. How much work is done by pushing the crate the entire length of the plane?
You would like to store 8.9J of energy in the magnetic field of a solenoid. What is the magnitude of the magnetic field inside the solenoid
In a lecture demonstration, laser light is used to illuminatetwo slits separated by 0.5 mm, and the interference pattern isobserved on a screen 4.0 m away. The distance on the screenfrom the centerline to the, m = 16 bright fringe is 6.0 cm.
Develop an expression for the velocity vector v(t) in m/s) of the coconut as a function of the given information, the free-fall time t, and variables available in the palette. Let t = 0 be the moment that the coconut is released. Express your answ..
Clarice is standing at the edge of a steep cliff when a boulder comes loose from the edge and falls directly downward toward the lake below. Clarice hears the sound of the boulder hitting the water 7.5 s later. If the speed of sound is 340 m/s, how h..
A sample contains radioactive atoms of two types, A and B. Initially there are five times as many A atoms as there are B atoms. obtain the half life in hours
What is the magnitude of the emf induced between the two sides of the shark's head?
What is the angular speed of the wheels when the car has traveled half the total distance - What is the potential energy associated with the satellite at this location?
On a banked race track, the smallest circular path on which cars can move has a radius of 102 m, while the largest has a radius 157 m, Find the smallest and largest speed the cars can remove without the presence of friction
There is evidence that elephants communicate via infrasound, generating rumbling vocalizations as low as 14 Hz that can travel up to 10 km. The intensity level of these sounds can reach103dB, measured a distance of4.5m from the source. Determine the ..
A Red Cross helicopter delivers crates of medicine to a war-torn area because of the hilly terrain, the helicopter cannot safely land. Determine how fast is the crate from moving right before it hits the ground
A 40 kg skateboarder (Ms) on a 3 kg board (Mb) is training with two 5 kg weights (Mw). How fast is he propelled in the opposite direction after the weights are thrown
a power transmission line feeds input power at 2300 v to a stepdown transformer with its primary windings having 4000
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