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A golf ball is sent flying at an angle of 35 degrees for a total flight time of 5 seconds. Landing at the same level from which it took off, what was the horizontal distance in feet traveled by the ball?
A metal bar f length L = 1.8 m slides along two horizontal metal rails, what is the emf induced across the ends of the bar
The threshold of dark-adapted (scotopic) vision is 8.0 ? 10-11 W/m2 at a central wavelength of 450 nm. how many photons per second enter the eye
A 1.00-kg block compresses a spring for which k1 = 100. N/m by 20.0 cm and is then released to move across a horizontal, frictionless table, determine the maximum compression of the second spring
A 2.2-kg cart is rolling along a frictionless, horizontal track towards a 1.9-kg cart that is held initially at rest. What was the velocity of the first cart when the second cart was still at rest
At the end of an amusement park ride, you want the gondola to stop without the acceleration exceeding 2 g%u2019s. what is the maximum allowed braking force
Suppose a star with radius 8.61 108 m has a peak wavelength of 686 nm in the spectrum of its emitted radiation. What is the surface temperature of the star
Calculate the de Broglie wavelength ? of an electron with energy EF in sodium, and compare the value with the atomic separation R in sodium
An air hockey puck is attached to a string with a length of .45 m and is set in a circular motion with a period of 2.0 s. What is the tangential speed of the puck
Calculate the minimum amout of work (in joules) required to freeze one liter of water originally at temperature T = 20 degrees celsius
A baseball with a mass of 0.152 kg is moving horizontally at 32.0 m/s [E], when it is struck by a bat for 0.00200 seconds, Find the average net force of the ball
A magnetic B field with strength 1 T passes through a metal square loop measuring 0.8 m on its side. If the B field is parallel to the loop's normal
A small metal ball with a mass of 6.19 g and a charge of 6.15 mC is located at a distance of 0.67 m above the ground in an electric field of 11.5 N/C directed to the east
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