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In the figure, a 4.0 kg block slides along a track from one level to a higher level after passing through an intermediate valley. The track is frictionless until the block reaches the higher level. There a frictional force stops the block in a distance d. The block's initial speed is v0 = 6.5 m/s, the height difference is h = 1.0 m, and ?k = 0.559. Find d.
A sled of mass 5.37 kg is coasting along on a frictionless ice-covered lake at a constant speed of 1.13 m/s. At what speed does the sled move once the book is on it
A proton traveling with a velocity of 6.20x10^6 m/s in the positive x direction encounters a uniform 0.25 magnetic field in the positive y direction
A 14.4 cm long tendon was found to stretch 3.79 mm by a force of 11.1 N. Calculate the Young's modulus of this tendon
A rock of mass 33 kg accidentally breaks loose from the edge of a cliff and falls straight down. The magnitude of the air resistance that opposes its downward motion is 242 N. What is the magnitude of the acceleration of rock.
Two wires A and B are of equal length. Each is attached at one end to the ceiling and to a weight at the other end. The cross-sectional area of A is 2.00 mm2 and that of B is 4.00 mm2.
A small sphere whose mass is 0.60 g carries a charge of 3.0 x 10-9 C and is attached to one end of a silk fiber 8.00 cm long. Find the angle the fiber makes with the vertical plate
You and your friend Peter are putting new shingles on a roof pitched at 25?. If the coefficient of kinetic friction between the box and the roof is 0.51, with what speed should you push the box to have it gently come to rest right at the edge of th..
Consider a region of space with volume 80 mm3. Suppose the energy stored in the electric field of that particular region of space is 35 J. What is the average electric field strength in this region?
A cosmic-ray proton in interstellar space has an energy of 25.0 MeV, What is the magnetic field in that region of space
Light from the sun allows a solar cell to move electrons from the positive to the negative terminal, What is the emf of this solar cell
What is the ratio of the amplitude of the damped oscillation
An electron is projected vertically upward with a speed of 1.65x10^6 m/s into a uniform magnetic field of 0.160 T that is directed horizontally away from the observer. What would the radius of the circle be.
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