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Q1. A person is pulled to the right on a sled (total mass of 54.3 kg) across the surface of a frozen pond with a force of 86.6 Newton's so that they move with a constant velocity. What is the force of friction acting on sled?
Q2. A)Supposing that it remains at that value all the way to absolute zero, calculate the number of calories it would take to change a 0.50g ice cube at absolute zero (-273 degree C}) to 0.50 g of boiling water.
B)How does this number of calories compare with the number of calories required to vary the same gram of 100 degree C boiling water to 100 degree C steam?
What is the coefficient of kinetic friction
An open-open organ pipe is 67.9 cm long. AN open-closed pipe has an essential frequency equal to the third harmonic of the open-open pipe. How long is the open-closed pipe.
A sphere of radius R is uniformly charged to a total charge of Q. It is made to spin about an axis that passes through its center with an angular speed ω. Find the magnitude of the resulting magnetic field at the center of the sphere.
What is the most amounts by which the wavelength of an incident photon could change when it undergoes Compton scattering from an atom or molecule with a 19 u mass .
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.
Compute magnitude of the average emf
A conveyor belt at a quarry lifts 2,000 kg of sand per minute up a vertical distance of 12 meters. The sand is at first at rest, then moves at a speed of 0.20 m/s along conveyor belt. What is the instantaneous power generated by this machine .
How long can craft hover over the moon surface Contract between Einstein's calculations and observed precession
What will be its length and height at rest
Determine magnitude of the force from the ground on each front wheel. what is magnitude of the duck's velocity.
What is a vertical velocity of the ball
What was the absorbed dose in the carbon walls? The average mass stopping powers of graphite and CO2 for the photons are, respectively, 1.648 and 1.680 MeV cm^2/g.
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