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Question: What is the coefficient of kinetic friction between a 4.5 kg blockand the horizontal surface on which it rests if an 85 N/m springmust be stretched by 2.1 cm to pull the block with constant speed. Assume the spring pulls in a direction 13 degrees above thehorizontal. The response must be typed, single spaced, must be in times new roman font (size 12) and must follow the APA format.
Calculate the charge on each plate and the number of electrons on the negative plate if the charge on an electron is 1.6 x 10-19 C.'
A solenoid in MRI is 2.40 m long, 94 cm in diameter, and 1200 turns of superconducting wire. Find a) inductance, b) induced emf in the solenoid while the current in the wire is changing from 0 to 2.5 kA in 30 s.
A charge of +q is placed at the origin, while an identical charge is placed on the x axis at x = 0.50 meter. Estimate where should the third charge be placed
On the bunny hill at a ski resort, a towrope pulls the skiers up the hill with constant speed of 1.57 m/s. What is the force with which the towrope has to pull on the child after movement begins
A child throws a ball straight up with an initial speed of 10m/s. Estimate the maximum height above the child hand that the ball reaches
a flat 136-turn current-carrying loop is immersed in a uniform magnetic field. the area of the loop is 6.15 cm2 and the
An open flask sitting in a lab fridge looks empty, but we know that actually it is filled with a mixture of gasses called air. how many gas molecules does the flask contain
What is the rotational kinetic energy of the earth due to its rotation about its own axis
A 1200kg car (A) traveling due north at 25m/s collides with a 2000kg truck traveling due west at 18m/s. What is the velocity of the wreckage just after the collison
Two known forces F1 = 2.5 N at 79o below the +x axis and F2 = 2.5 N at 39o above the - x axis are acting on an object. What is the magnitude of the third force F3 so that the acceleration of the object is zero
The size of the atom in Thomson's model - the atomic size in Rutherford's model - but has a highly nonuniform mass distribution
An object of mass 0.69 kg is initially at rest. When a force acts on it for 2.9 ms it acquires a speed of 13.4 m/s. Find the magnitude of the average force acting on the ball
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