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Suppose that while moving into an apartment you move a refridgerator into place by sliding it across the floor. The refrigerator weights 809 N and the coefficient of the static friction between the floor and the fridge is .730. What is the least force you could exert on the fridge to move it?
Discuss briefly centripetal acceleration, the speed and the force exerted by a ball attached to a string.
A rod supports a 2.35 kg lamp. a) What is the tension in the rod? b) Estimate the components of the force that the bracket exerts on the rod.
A series RLC circuit contains a resistor of 20 ohms, a capacitor of 0.75x10^-6 F, and an inductor of 0.120 H. what is the rms current in the circuit when operating at its resonance frequency
Write a Matlab program that converts from COEs (classical orbital elements) to position and velocity vectors
The other end is attaced to a 3 kg disk moving in uniform circular motion on the table, which stretches the spring by 1 cm. Note: Friction is negligibe. Illustrate what is the work done on the disk by the spring during one full circle?
A horizontal beam of electrons initially moving at 3.4 107 m/s is deflected vertically by the vertical electric field between oppositely charged parallel plates.
A parallel-plate capacitor has plates of area 177.0 cm2 and a separation of 1.85 cm. Find the capacitance before the slab is inserted
An electron experiences a magnetic force of magnitude 4.20 10-15 N when moving at an angle of 45.0° with respect to a magnetic field of magnitude 3.90 10-3 T. Find the speed of the electron
Two metal balls are hung from strings. The first ball, 0.14 kg, is pulled to the side and released, What is the mass of the second ball
Construct a point charge configuration with three charges where there is a point (not at infinity) where the electric field is zero.
A kayaker needs to paddle north across an 85 m wide harbor. The tide is going out, creating a tidal current that flows to the east at 1.7 m/s. The kayaker can paddle with the speed of 3.0 m/s.
A 2.30-kg object attached to a spring moves without friction (b = 0) and is driven by an external force given by the expression F = 3.40sin (2pi*t), where F is in newtons and t is in seconds. The force constant of the spring is 35.0 N/m.
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