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Derive the equation for the linear acceleration of a falling mass m suspended by a string from the rim of a uniform disk of mass M and radius R that is free to rotate without friction about its principal axis. 2. If the hanging mass is doubled, what will happen to the angular acceleration of the wheel?
A proton travels with a speed of 2.9×10^6 m/s at an angle 44 degrees with a magnetic ?eld of 0.99 T pointed in the +y direction. What is the magnitude of the magnetic force on the proton
A diffraction grating with 2.507 X 10^3 lines/cm is used to examine the sodium spectrum. a) calculate the angular separation of the two closely spaced yellow lines of sodium (588.485 nm and 589.067 nm) in the first order. Answer in units of degree..
A microscope has an objective lens of focal length 6.55 mm. The objective forms an image 16.2 cm from the lens. What is the distance between the lenses
Two bicycle tires are set rolling with the same initial speed of 3.30m/s along a long, straight road, What is the coefficient of rolling friction for the tire under low pressure
An athlete needs to lose weight and decides to do it by "pumping iron." If the weight is lifted once every 2.00 s, how long does the task take
When t = 0 s, a flower pot on a window sill drops from rest to the sidewalk some 32.0 m below, How long was the pot in flight
Two particles of masses M1 = 93000 kg and M2 = 4200 kg are initially at rest an a distance 148.1 km apart. The masses are let go, and as a result of the gravitational force the two masses move towards each other.
Find the electric field at the top point of a right circular solid cone of charge Q, uniform density. The cone has a radius a and a height h.
If the plant produces electric energy at the rate of 1.3GW , how much exhaust heat is discharged per hour
A person pulls on the tether of a suitcase with a force of 15N at an angle of 60 degrees with the horizontal. what is the work done by friction in the same distance
Suppose a 76 kg person hangs vertically from a nylon rope. What radius must the rope have if its fractional increase in length is to be the similar as that of the spider's thread.
A solar collector is placed in direct sunlight where it absorbs energy at the rate of 890 J/s for each square meter of its surface. What equilibrium temperature does the collector reach
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