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Q1. A 20 kg block is at rest on a horizontal floor. If you push horizontally on the 20 kg block with a force of 50 N, it just starts to move.
A) What is the normal force acting on block?
B) What is the coefficient of static friction?
C) A 20 kg block is stacked on top of the 20 kg block. Both blocks are glued together. What is the magnitude F of force, acting horizontally on the two blocks, that is required to make the two blocks start to move?
Q2. The spontaneous fission rate of 239U is 1 fission per gram per 1.00 sec. Show that this is equivalent to half-life for fission of 5.6 x 1 0^15 years.
What temperature change would reason a 0.20 % enhance in the volume of a quantity of water that was at first at 20 ^circ {rm C}.
A toroidal solenoid has a mean radius of 11.0 cm and a cross-sectional area of 5.00 cm2 and is wound uniformly with 100 turns. A second coil with 500 turns is wound uniformly on top of the first. What is the mutual inductance of these coils.
An infinite non conducting sheet has a surface charge density σ = +5.80 pC/m2. (a) How much work is completed by electric field because of the sheet if a particle of charge q = +1.60 × 10-19 C is moved from the sheet to a point P at distance d = 3.56..
Find out the depth of the kerosene
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Determine the resolution limit set by diffraction . what average force do you need to apply to stop the sled? Utilize the concepts of impulse and momentum.
How much energy is given to the cell during this pulse. How many years would it take the earth to move 1.0 mm at this speed.
Problem on the velocity of boat
This magnetic field accelerates the electron in a circular motion. What is radius of the circle. The final situation is observed to be all water at 18°C. What was the mass of the ice cube.
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