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Four athletes are tugging on a ring, each exerting the forces depicted in the diagram below. Assuming static equilibrium,
a. What is the magnitude of F1?
b. What is the magnitude of F2?
The Moon is 3476 km in diameter and orbits the Earth at an average distance of 384,400 km. What is the angular size in radians of the Moon as seen from Earth
A spaceship moves past you at speed v. You measure the ship to be 287 m long, whereas an astronaut on the ship measures a length of 380 m. Find out v.
You place a 4.47-mm-high diamond on the axis of and 11.3 cm from a lens with focal length -6.79 cm. How high is the image
At 273 K and 1.00 x 10-2 atm, the density of a gas is 1.24 x 10-5 g/cm3. Determine the Molar Mass of the gas and also Identify the gas
The first mass M (9.50 kg) is sitting on an inclined plane whose angle above the horizontal is 35 degrees. What is the minimum mass, m, in kg, needed to keep the block from sliding down the incline
What should the charge (sign and magnitude) of a particle of mass 1.21 be for it to remain stationary when placed in a downward-directed electric field of magnitude 610.
A tennis ball with a velocity of 8.23 m/s is thrown perpendicularly at a wall. what is the average acceleration of the ball
A piano tuner sounds two strings simultaneously. One has been previously tuned to vibrate at 283.0 Hz. The tuner hears 5.0 beats per second. What was the original frequency of the untuned string
A ceiling fan consists of a small cylindrical disk with 5 thin rods coming from the center. The disk has mass md = 3.4 kg and radius R = 0.26 m. What is the final angular speed of the fan
Before starting this problem, review COnceptual Example 3. Suppose that hail described there bounces off the roof of the car with a velcity of +15 m/s. calculate the force exerted by the hail of the roof
How many joules of kinetic energy does a 750 automobile traveling at a typical highway speed of 65 have.
An RLC circuit has a sinusoidal voltage supplied to it at 632 kHz with a peak voltage of 748 V; a 25 k? resistance; a 16 µF capacitance; what is the peak current for this circuit
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