add-ons HelpLast edit was seconds agoArialBIUA112 38. If a fly collides with a windshield of a fast-moving car, which experiences impact forcewith a larger magnitude?a. The fly.b. The car.c. Both experience the same force.d. Depends whether the car is a Ford or a Holden.e. None of the above.9.Select the most true statement from the following:a. Joule (J) is a unit of work.b. Joule (J) is a unit of energy.c. Joule (J) is a unit of power.d. Joule (J) is a unit of both work and energy.Joule (J) is not a standard SI unit of energy.e.10. Two eggs of equal mass move with equal velocity. Egg A hits the floor and breaks, whileegg B hits the blanket instead. Compare the work done on the eggs in reducing theirvelocities to zero.a. More work is done on A than on B.b. More work is done on B than on A.C. The amount of work done is the same for both.d. Work was done one B, but no work was done on A because the wall did notmove.e. Work done depends whether or not eggs are free-range.

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Description: add-ons HelpLast edit was seconds agoArialBIUA112 38. If a fly collides with a windshield of a fast-moving car, which experiences impact forcewith a larger magnitude?a. The fly.b. The car.c. Both experience the same force.d. Depends whether the car

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Physics

8. If a fly collides with a windshield of a fast-moving car, which experiences impact force with a larger magnitude? a. The fly. b. The car. C. Both experience the same force. d. Depends whether the car is a Ford or a Holden. e. None of the above.

8. If a fly collides with a windshield of a fast-moving car, which experiences impact force with a larger magnitude? a. The fly. b. The car. C. Both experience the same force. d. Depends whether the car is a Ford or a Holden. e. None of the above.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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You find yourself stranded on the middle of a frozen pond. The surface is so slick you are unable to get any traction. In an effort to save yourself, you take off your boot and throw it toward the west. This results in... A. you staying put. B. you sliding off to the east slower than the boot's speed. C. you sliding off to the east faster than the boot's speed. D. you sliding off to the west faster than the boot's speed. E. you sliding off to the west slower than the boot's speed.
QUESTION 19 A 1.0-g pebble traveling to the right at 20 m/s collides head-on with a 5,000-kg truck traveling to the left at 30 m/s. Which of the following statements is true? a. The acceleration of the pebble will be less than the acceleration of the truck. b. The collision forces are independenct of Newton's third law of motion. c. The force of the pebble on the truck is greater than the force of the truck on the pebble. d. The force of the pebble on the truck is equal to the force of the truck on the pebble. e. The force of the pebble on the truck is less than the force of the truck on the pebble.
Consider two objects of the same mass. If a force of 100 N ask on the first for a duration of 1 s and on the other for a duration of 2 s, which statement is true. A. Neither objects will experience a change in the momentum. B. The first object will acquire more momentum. C. Both objects will acquire the same momentum. D. The second object will acquire more momentum.
The Moon is 60 Earth radii (i.e. 60 rEarth) from the center of the Earth and has a mass of 0.012 Earth masses (i.e. 0.012 mEarth) a. How many Earth radii is the center of mass (the “barycenter”) of the Earth-Moon system from the center of the Earth? b. Is the center of mass inside the Earth or outside the Earth? c. What point along the line from the center of the Earth to the center of the Moon orbits the barycenter of the Solar System in a (nearly) circular orbit (e.g. the center of the Earth, the barycenter of the Earth-Moon system, the midpoint, the center of the Moon)?
9. A ball rolls down a slope and off a flat floar. ignoring air resistance, what force or farces act on the ball as it moves through the air just after leaving the flat floor? a. The weight of the ball acting vertically down. b. A horizontal force that maintains the motion. C A force whose direction changes as the direction of motion changes d. The weight of the ball and a horizontal force. e. The weight of the ball and a force in the direction af motion.
4. The parking brake fails on a parked car at the top of a hill and it rolls down the hill ¹. At that same moment an SUV is coming down a cross street at the bottom of the hill, moving at 30 miles per hour. (See diagram below.) The mass of the car is 1000 kg. The mass of the SUV is 3000 kg. a) Find the speed of the car when it reaches the bottom of the hill. b) The car and SUV collide and move off together. Find their velocity immediately after the collision. ¹ Note that the wheels of a car are so much lighter than the car itself that their rotation is negligible. In short, a rolling car acts like a sliding object, not like a rolling object. W. View from Above N E Hill Side View of the Hill 10m 40°
7. A bowling ball and a feather are dropped from a height of 100 ft. The bowling ball weighs 12 Ibs and the feather weighs 3 ounces. a. What is the Force (in Newtons) of both objects? b. The value of g is varies depending on what planet you are on. Bigger planets have a larger value of g. The value of g on the moon is 1.62 m/s2. Calculate the forces of these objects falling on the moon.
7. To pull an old stump out of the ground, you and a friend tie two ropes to the stump. You pull on it with a force of 500 N to the north while your friend pulls with a force of 450 N to the northwest. The total force from the two ropes is A. less than 950 N. B. exactly 950 N. C. more than 950 N.
Which of the following best explains the greater difficulty in stopping a 1000-kg car moving at 174 km/h compared to an identical 1000-kg car moving at 100 km/h? A.The faster car has less air drag. B.The slower car has less tire friction. C.The faster car has greater momentum. D.The slower car has greater inertial mass.
2. A stone is dropped from the top of a high cliff with zero initial velocity. In which system is the net momentum zero as the stone falls freely? a. the stone and the Earth b. the stone itself C. None of these d. the stone and the person who drops it
Falling into soft sand is less damaging than falling on a hard concrete surface because the impact time for falling in soft sand is greater than on a hard concrete surface. O a. False O b. True
A 0.450 kg hammer is moving horizontally at 9.00 m/s when it strikes a nail and comes to rest after driving it 1.00 cm into a board. a. Calculate the duration of the impact in seconds. b. What was the average force in newtons exerted on the nail? _______ N