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1) Jim ran up a hill at 7.0 m/s, and the horizontal component of his velocity vector was 5.2 m/s. What was the vertical component of Jim's velocity, in m/s? (Enter the number only.)
2) Zoe ran the marathon (approximately 42.0 km) in 2 hours and 43 min. What was Zoe's average speed, in m/s? (Enter the number only)
Standing 2.0 m in front of a small vertical mirror, you see the reflection of your belt buckle, which is 0.70 m below your eyes. What is the vertical location of the mirror relative to the level of your eyes and what angle do your eyes make with t..
A solid conducting sphere of radius 2.00 cm has a charge 17.00 µC. Find the electric field at r = 1.00 cm from the center of this charge configuration
A 65.0 kg weight watcher wishesto climb a mountain to work off the equivalent of a large piece ofchocolate cake rated at 480 (food)Calories. How high must the person climb
An object can move in either direction along a horizontal line (the + position axis). Assume that friction is so small that it can be neglected. Which graph corresponds to the force applied to the object that would produce the motion described?
Through one engine cycle, a lawnmower engine does 55.2 J of net work. In the process, it expels 153 J of energy as heat. Determine what is the percent efficiency of the engine?
At a distance of 60.0 km from a radio station antenna the electric-field amplitude is 7.60×10?2 V/m. what is the total power output of the station
a analyse a technological device that applies the principles of linear or circular motion. b assess the impact on
a uniform line charge extends from x - 2.7 cm to x 2.7 cm and has a linear charge density of 5.9 ncm.a find the
A swimmer bounces straight up from a diving board and falls feet first into a pool. What is her velocity when her feet hit the water
a skydiver jumps out of a plane and fall 7.7 seconds before opening the parachute. what is the sky divers speed when
A carpenter is driving a nail into a board. The 1.25 kg hammer moves at 8.85 m/s when it strikes the nail. What is the change in length of the nail
An electron traveling at 3.00 x 104 m/s is further accelerated to an excited state by a potential difference so as to reduce its de Broglie wavelength to one-third of its original value. How much voltage is required to accomplish this? The electro..
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