questions. Multiple-choice questions may continue on the next column or page - find all choices before answering 001 (part 1 of 2) 10.0 points a) What is the kinetic energy of an automobile with a mass of 1232 kg traveling at a speed of 10 m/s? Answer in units of J. 002 (part 2 of 2) 10.0 points b) What speed would a fly with a mass of 0.562 g need in order to have the same kinetic energy as the automobile? Answer in units of m/s. 003 10.0 points A 7.33 kg bowling ball moves at 4.49 m/s. How fast must a 2,34 g Ping-Pong ball move so that the two balls have the same kinetic energy? Answer in units of m/s. 004 (part 1 of 5) 10.0 points A 15.8 kg block is dragged over a rough, bor- izontal surface by a constant force of 126 N acting at an angle of angle 29.9° above the horizontal. The block is displaced 65.5 m and the coefficient of kinetic friction is 0.158. 1. positive 2. negative 3. zero 007 (part 4 of 5) 10.0 points Find the work done by the normal force. Answer in units of J. 008 (part 5 of 5) 10.0 points What is the net work done on the block? Answer in units of J. 009 10.0 points A crate is lifted vertically 1.5 m and then held at rest. The crate has weight 100 N (ie, it is supported by an upward force of 100 N). How much work is being done to hold the crate 1.5 m above the ground in this way? 1. A bit less than 150 J 2. 150 3. No work is being done. 4. More than 150 J 5. None of these 010 10.0 points A cart loaded with bricks has a total mass of 23.4 kg and is pulled at constant speed by a rope. The rope is inclined at 30.6.de grees above the horizontal and the cart moves 27.2 m on a horizontal floor. The coefficient of kinetic friction between ground and cart is 0.522 The acceleration of gravity is 9.8 m/s. How much work is done on the cart by the rope? Answer in units of kJ 011 (part 1 of 3) 10.0 points Assume you are on a planet similar to Earth where the acceleration of gravity g 10 m/s A plane 50 m in length is inclined at an angle of 16.3 as shown. A block of weight 500 N is placed at the top of the plane and allowed to slide down. 126 N 15.8 kg 0.158 Find the work done by the 126 N force. The acceleration of gravity is 9.8 m/s. Answer in units of J. 005 (part 2 of 5) 10.0 points Find the magnitude of the work done by the force of friction Answer in units of J. 006 (part 3 of 5) 10.0 points What is the sign of the work done by the frictional force?
costo () - He- (379) 2 Stan does It of work lifting himself What is Stan's mus? The acceleration of 163 gravity. Aer in snits of ku. SON Themes of the block is that teatte 1.26 3. 4. Sok 5.10 7.15 8.13 015 10.0 points Kate has a man of 57.6 kg as she rides the up escalator at Woolly Park Station of the Washington DC Metre Karen rode distance of 59,6 m, the longest escalator in the free weld The creation of travity 9.8 m/s2 How much work dil the escalator do on Karen if it has an inclination of 27.5 Answer in unit of 1. 016 (part 1 of 2) 10.0 points The force required to stretch Hooke-on ring varies from O N 1036.4 N stretch the spring ly maingo end 16.6 cm from its usted position Find the forecast of the spring Ana in units of N/m. 012 (part 2 of 3) 10.0 points Calculate the magnitude of the wormal fue exerted on the block by the plane 1. 120 2. NT400 3. EM 240 4.300 5.200 6. 160 7. IN 8. NON 017 (part 2 of 2) 10.0 points Fad the work done in stretching the spring Awinnt of 018 10.0 points A 2555 kg car move down a level highway under the seberation of two forces. One is 2191 N formand force expected on the drive while by the road the other is 929 resistive Find the speed of the car after it has moved istance of 38 ming it starts from 013 (part 3 of 3) 10.0 points Calculate the work done on the block by the gravitational force during the 50 miedo the plane in LW 650 2. W 2400 3. W 1750 4.70003 5. W 3750 6. W5850 7. W 2600 8.W360 9. W 600 1.2.0 m/s 2.3.6 m/s 3.3.2 m/ 4.2.19 m/s 014 10.0 points 5.2.22 content) Hoewek-chet-(3794) 6.3.19/ 024 10.0 points A 7.23 ks bowling ball more at 1.45 m/s How ft musta 2.22 g Ping Pong ball move so that the two balls have the same kinele 7.261 8.2.77 m/s Answer in units of m/s 9.2.91 m/ 10.2.5 m/
This print-out should have 24 This print-out should have 24 questions. Multiple-choice questions may continue on the next column or page - find all ch
-
- Site Admin
- Posts: 899603
- Joined: Mon Aug 02, 2021 8:13 am