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A horizontal force of magnitude 31.2 N pushes a block of mass4.42 kg across a floor where the coefficient of kinetic friction is0.631.
(a) How much work isdone by that applied force on the block-floor system when the blockslides through a displacement of 4.05 m across the floor?
(b) During thatdisplacement, the thermal energy of the block increases by 33.9 J.What is the increase in thermal energy of the floor?
(c) What is the increase in the kinetic energy of the block?
A laser with wavelength d/8 is shining light on a double slit with slit separation 0.450mm. What is the wavelength of the second laser that would place its second maximum at the same location as the fourth minimum of the first laser
A 2.50-kg stone is dropped from rest at a height of 3.75 m. What impulse does gravity impart to this stone from the instant
A mass m=4.5 kg is attached to the vertical spring with k=200 N/m and is set into motion. what is the maximum value of the velocity
A beam of light traveling in a block of glass (n=1.60) is incident on the top surface at an angle of 55° with respect to the normal. What is the maximum possible index of refraction of the oil
Determine the same situation, but now let the initial speed v0 of the first ball be given and treat the height h of the building as an unknown. What should the height of the building be for both balls to reach the ground at the same time for v0= 8..
A very long, straight solenoid with a cross-sectional area of 6.15 is wound with 30 turns of wire per centimeter, compute the average induced emf in the secondary coil
An archer lines up an arrow on the horizontal exactly dead center on a target. She releases the arrow, and it strikes the target a distance h=7.6cm below the center. how long was the arrow in the air before striking the target
-Chlorine-35 has a mass of 34.97 amu, and makes up 75.53 % of all chlorine atoms, and Chlorine-37 has a mass of 36.95 amu, Determine the atomic mass of the chlorine atom
question 1part 1a knight of round table fires off a vat of burning pitch from his catapult at 15.2 ms at 34 above
What is the charge density on the surface. suppose that air resistance can be neglected.
A 65 kg skateboarder comes over the top of a hill at 5.0 m/s and reaches 10 m/s at the bottom. Find the total work done on the skateboarder
What is the internal resistance of a 12 V car battery whoseterminal voltage drops to 9.90 V when the starter draws 73.8 A? What is the resistance of the starter
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