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Shawn and his bike have a combined mass of 70 kg Shawn rides his bike 4 km in 5 minutes in constant velocity. What is the kinetic energy?
an object is moving in the -direction at 1.4 ms when it undergoes an acceleration . a 0.52j ms2 find its velocity
What least horsepower must a motor have to be able to drag a 320 box along a level floor at a speed of 1.10 if the coefficient of friction is 0.50.
The pickup coil in an electric guitar contains 10,000 turnsand has a diameter of 2.1 mm. When thepickup coil is very close to a guitar string, there is a field ofmagnitude B = 0.09 T in thecoil. If this steel string is vibrating at a frequency of2..
If the bow is pulled back a distance 0.14 m before releasing the arrow, what is the work done on the bow as the bowstring is pulled back into position
How much sound power will strike the eardrum of an airport worker 15.3 m from the aircraft? (Use 1.9 10-2 m as the diameter of the ear.)
Why can a harmonic function be used to compute vibrational energy states for a DIATOMIC molecule, and under what conditions are the computed values inaccurate?
An electron is a subatomic particle (m = 9.11 10-31 kg) that is subject to electric forces. Find the magnitudes of the net force acting on the electron
The current flowing in Ring 2 produces its own magnetic field, which in turn induces an emf in Ring 1, el. How much is this? In which direction does this current flow?
An elevator has mass 740 kg, notincluding passengers. The elevator is designed to ascend, atconstant speed, a vertical distance of 20.0 m (five floors)in 15.0 s and it is driven by amotor that can provide up to 40 hp to the elevator.
An isolated conductor of arbitrary shape has a net charge of +1.20×10-5 C. Inside the conductor is a cavity within which is a point charge q = +3.60×10-6 C. What is the charge on the cavity wall?
A person who weighs 715 N is riding a 98-N mountain bike. Suppose the entire weight of the rider and bike is supported equally by the two tires. estimate the area of contact between each tire and the ground
Charge Q+ is located d units along y axis in positive direction north of O, What is magnitude of electric field at the origin O
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