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A uniform horizontal beam 5.00 m long and weighing 320 N is attached to a wall by a pin connection tht allows the beam to rotate. Its far end is supported by a cable that makes an angle of 53 degrees with the horizontal. The cable can support a maximum tension 400 N. A man weighing 600 N is standing on the beam. How far out on the beam can the person stand without breaking the cable?
Megan's mass is 28kg. She climbs the 4.8m ladder of a slide and reaches a velocity of 3.2m/s at the bottom of the slide. How much work was done by friction on Megan? Assume that air resistance is negligible.
A Carnot engine takes an amount of heat QH = 111 J from a high-temperature reservoir at temperature TH = 1030 °C, Find the amount of work that is obtained from this process
A uniform ladder 5.0 m long rests against a frictionless, vertical wall with its lower end 3.0 m from the wall. The ladder weighs 180 N. What is the actual frictional force when the man has climbed 1.0 m along the ladder
Sit on a rotating chair. Slowly twist your body in one direction and after that rapidly twist it in the other. What is going to happen? Is angular momentum conserved and if not why.
A world-class sprinter accelerates to his maximum speed in 4.0s. He then maintains this speed for the remainder of a 100m race, What is his average acceleration for the entire race
A plane flies 500 km east from city A to city B in 45.0 min and then 930 km south from city B to city C in 1.50 h. In magnitude-angle notation, what is the plane's displacement for the total trip
A liquid (p = 1.35 g/cm3) flows through two horizontal sections of tubing joined end to end. Calculate flow speed and pressure in the smaller section
Compute the rms speed of a nitrogen molecule at 16.0 °C. At what temperature will the rms speed be half that value
When yellow light from a sodium lamp shines on a certain photocell, What potential would be needed to stop the electrons if light with 4000 A is used
When the capacitor is charged to 135V , what is the charge per unit length lambda on the capacitor
An electron starts from rest 2.88 cm from the center of a uniformly charged sphere of radius 1.99 cm. how fast will the electron be moving when it reaches the surface of the sphere
A 370-kg sailboat has an acceleration of 0.87 m/s2 at an angle of 64° north of east. Find the magnitude and direction of the net force that acts on the sailboat.
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