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1. What are the internal and external force on this system?
2. What is the net work being done on the system
3. What is the change in kinetic energy of the system(earth is stationary)
4. Is your answer for the change in kinetic energy for the book depend on whether the earth was part of the system? Explain why it changed or is the same.
two identical 8.0 microc point charges are initially spaced 5.3 cm from each other. if they are released at the same
Consider the design of a solar-powered alternate power generation infrastructure that could maintain sufficient electrical power to meet current US annual demand.
question a 6.00 kg bowling ball is rolling at 9.00 ms. it collides with a 1.50 kg bowling pin at rest. after the
Let B = 5.10 m at 60°. Let vector C have the same magnitude as vector A and a direction angle greater than that of vector A by 25°. Find the magnitude and direction of vector A
an electron is observed traveling at a speed of 2.38 107 ms parallel to an electric field of magnitude 11460 nc. how
water is moving with a speed of 2.3 ms through a perfectly sealed long pipe with a cross sectional area of 5 cm2. the
Two dogs pull horizontally on ropes attached to a post; the angle between the ropes is 60.7 degrees. Find the the angle the resultant force makes with dog A's rope
An ambulance leaves the police station in Big City and travels 4 blocks north then 5 blocks east to pick up a patient. How far is the police station from the hospital
Sodium Chloride gas has molecules that are ionically bonded. The Sodium end has a charge of +1e, calculate the dipole moment
A 1.83 kg book is placed on a flat desk. Suppose the coefficient of static friction between the book and the desk is 0.422 and the coefficient of kinetic friction is 0.229. How much force is needed to begin moving the book
An evacuated spherical diving bell containing a camera is in the ocean at a depth of 113 m. Find the magnitude of the total force on the port
The rolling resistance for steel on steel is quite low; the coefficient of rolling friction is typically ur=0.002. How far will the locomotive move during this time
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