A body of mass 30 kg is at rest. A force of 5 N is applied on it. Calculate the work done in first second.
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- 4For centripetal acceleration, why not use ac = r * W2?Imagine you are on an amusement park and on a train ride. At some point the train ride follows a horizontal circle of radius r = 5.00 m around a center “O”. At what magnitude of tangential velocity of the train carts do you have a centripetal acceleration with magnitude of 2.5g? g is the standard gravitational acceleration on the surface of theEarth.a. about 2.42 m/sb. about 123 m/sc. about 11.1 m/sd. about 19.8 m/s
- I Review i Two satellites are in circular orbits around a planet that has radius 9.00 × 10° m. One satellite has mass 68.0 kg, orbital radius 6.00x107 m, and orbital speed 4800 m/s. The second satellite has mass 84.0 kg and orbital radius 5.00x107 m. Part A What is the orbital speed of this second satellite? Express your answer to three significant figures and include the appropriate units. HẢ ? V = Value Units Submit Request AnswerA spacecraft orbits Mars at an average altitude of 405 km. The average radius of Mars is 3390 km. If it takes the spacecraft 1.95 hours to complete one orbit around the planet, what is it's tangential velocity in kilometers per hour?How do you get part C
- No answer from Chat GPT will downvoteHello, Can someone please show how to solve this problem? ThanksH.W: In the Boher model of the hydrogen atom an electron moves at 2.19*10m/s in an orbit of radius 5.29*10" centered on a proton. (a)what is the centripetal force on the electron? (b)what is the number of revolutions made each second? Ans. (a)9.06*10"m/s (b = 6. 58 + 1015 1/s H.W: A ball is thrown with an initial speed voat an angle 0 below the horizontal from rooftop 44m above the ground. It lands 2sec later at a point 32m from the Vor base of the building. Find vo and 0 Ans. 0 = -37.32vo = 20. 1m/s H.W: A ball thrown up from a rooftop of height 40m lands on ground in 4s. (a)what is its maximum height above the ground? (b)what is its velocity 15m below the rooftop? Ans. (a)44.7m (b) v = -19.65 4 H.W: An object is thrown horizontally at 20m/s from a cliff top 45m above sea level. Find (a)the time to land; (b)the angle at which it hits the water; (c)the speed at which it hits the water. Ans. (a)3.03s (b)Ø = -54.73 (c)35.79m/s