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Question 1
A 2 kg book resting on a flat table requires an applied force of 4 N to make it move. Draw a free body diagram illustrating this situation and find the coefficient of static friction between the book and the table.
Question 2
A 30 kg crate is pulled across a flat floor with 80 N of force. The coefficient of kinetic friction between the crate and the floor is 0.15. Draw a free body diagram illustrating this situation and find the acceleration of the crate.
Question 3
An applied force of 100 N causes a 20 kg crate to accelerate across a level floor at 2 m/s2. Draw a free body diagram illustrating this situation and find the coefficient of kinetic friction between the crate and the floor.
Question 4
60 N of force is applied to a 10 kg crate initially at rest on a level floor. The coefficient of friction between the crate and the floor is 0.4. Draw a free body diagram illustrating this situation and find the distance traveled and the velocity of the crate after 3 seconds.
Question 5
Sue and Bill are standing on a frictionless surface of ice. Sue, whose mass is 60 kg, pushes Bill, mass 100 kg, with 300 N of force. Draw a free body diagram illustrating this situation and find the acceleration of both Sue and Bill.
A thin convex lens has focal length 20 cm. An object is placed 40 cm from the lens. What is the magnification of the image
If a spaceship orbits an asteroid with a radius of 800m, find the asteroid's moment of inertia in orbit
A fighter jet is launched from the aircraft carrier with the aid of its own engines and a steam powered catapult. The thrust of its engines is 2.3E5N. In being launched from rest, it moves a distance of 87m and has a kinetic energy of 4.5E7J at li..
a man pushing a mop across a floor causes it to undergo two displacements. compute the direction of the second displacement
Explain how much time will it take for the police officer to reach the speeder, assuming that the speeder maintains a constant speed?
the dipole moment of the water molecule is 6.1 10-30 c m. in an electric field a molecule with a dipole moment will
A 65 kg woman and an 80 kg man stand 10.0 m apart on frictionless ice. How far will the man have moved when he collides with the woman
The nucleus of an atom consists of protons and neutrons (no electrons). A nucleus of a carbon-12 isotope contains six protons and six neutrons, while a nitrogen-14 nucleus comprises seven protons and seven neutrons.
A(n) 11.9 g bullet is shot into a(n) 6191 g wooden block standing on a frictionless surface. Calculate the velocity of the bullet before striking the block
two trains face each other on adjacent tracks. they are initially at rest and their front ends are 36 m apart. the
Obtain the magnitude of the magnetic force on a section of wire having a length of 13 cm
Assume that the earth is a uniform sphere and that its path around the sun is circular. Calculate the kinetic energy that the earth has because of itsrotation about its own axis. For comparison, the total energy used in the United States in one yea..
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