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As shown on the right, a uniform boom with a mass of 30.0 kg and a length of 2.00 meters is suspended at its left end by a low friction bearing and supported at its right end by a low mass horizontal steel wire of diameter 4.00 mm. A 20.0 kg mass is suspended from the far end of the boom. Given: Ysteel = 2.00 x 1011 Pa
A. Find the tension in the horizontal cable.B. By how much did the cable stretch after it was initially attached to the boom?
An 8.70-kg block slides with an initial speed of 1.80 m/s down a ramp inclined at an angle of 22.2 deg with the horizontal. Use energy conservation to find the distance the block slides before coming to rest
Catapults date from thousands of years ago, and were used historically to launch everything from stones to horses. At what speed did the projectiles hit the wall
A 0.500 kg particle moving along a straight line with a position vector given by r = (-2.00t2 - t) i(hat) + 5.00 j(hat), with r in meters, Obtain the kinetic energy of this particle
A compound microscope has an objective lens with a focal length of 2.0 cm and an eyepiece with a focal length of 5.9 cm. what magnification does this microscope produce
a circular roller coaster has radius 30 m. The speed at the bottom is 37.0 m/s. A 50 kg girl is sitting on a scale. What does it read in kilograms at the top of the ride
What is the vertical force on the support closest to piano.
When the centrifuge reaches an angular speed of 2.5 rad/s, the trainee experiences a total acceleration equal to 4.8 times the acceleration due to gravity. Explain how long is the arm of the centrifuge?
Enter question here...A 100g on object is suspended from a spring. When 40 g are added the soring stretches an additional 5.0 cm. What is the angular frequency and period of the oscillations
A 4.30-kg ball is dropped from a height of 14.5m above one end of a uniform bar that pivots at its center. The bar has mass 6.50kg and is 4.60m in length. At the other end of the bar sits another 6.00-kg ball, unattached to the bar. The dropped ball ..
A square coil of wire of side 3.20 cm is placed in a uniform magnetic field of magnitude 2.25 T directed into the page, determine the average current induced in the coil
The two springs each have a spring constant of 11. They are stretched by 1 as a current passes through the wire. How big is the current.
A solenoid 24.0cm long and with a cross-sectional area of 0.600cm^2 contains 420 turns of wire and carries a current of 75.0 A. Calculate the magnetic field in the solenoid
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