### Momentum Test - Physics I - Campbell Science

Kefid · 4. Which of the following objects has the greatest momentum? A. a 1-kg object moving at 200m/sec B. a 10-kg object moving at 30m/sec C. a 20-kg object moving at 20m/sec D. a 100-kg object moving at 2m/sec 5. The momentum of a rocket is equal to the A. sum of its mass and velocity B. product of its mass and velocity C. di erence between its mass

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The Porsche 911 GT3 has a 380 hp engine and a mass of 1.4 times 10^3 kg. The car can accelerate from 0 to 100 km/h in 4.3 seconds. What percentage of the power supplied by the engine goes into mak

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Kefid · A freight train consists of two $8.00 times 10^4 textrm{ kg}$ engines and 45 cars with average masses of $5.50 times 10^4 textrm{ kg}$. (a) What force must each engine exert backward on the track to accelerate the train at a rate of …

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Kefid · 7. A dump truck used in Canada has a mass of 5.50 × 105 kg when loaded and 2.30 × 105 kg when empty. Suppose two such trucks, one loaded and one empty, crash into each other at a monster truck show. The trucks are supplied with special bumpers that make a collision almost perfectly elastic. If the trucks hit each other at equal speeds of 5.00

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You can expect an average dump truck weight to be about 26,193 pounds (11,881 kg). When looking at the specs for different dump trucks, the weight will be typically listed as GVWR. This stands for gross vehicle weight rating or the maximum …

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Power spent by a source depends on two factors: (i) The amount of work done by the source, and (ii) The time taken by the source to do the said work. Example: If a coolie A takes 1 minute to lift a load to the roof of a bus, while another coolie B takes 2 minutes to lift the same load to the roof of the same bus, the work done by both the coolies is the same, but the power spent by the …

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Kefid · Problem E: A dump truck used in Canada has a mass of 5.50 x 10 5kg when loaded and 2.30 x 10 kg when empty. Suppose two such trucks, one loaded and one empty, crash into each other at a monster truck show. The trucks are supplied with special bumpers that make a collision almost perfectly elastic. The trucks hit each other at equal speeds of 5

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Liming · Question 4: Calculate the work done when: (i) A 5 kg weight is lifted 10 m vertically upward (g = 9.8 ms-2). (ii) A car is moved on a rough road through 3 m against a frictional resistance of 75 N. Solution: Question 5: An electric motor of …

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Liming · Ans. 2TKE = ½mv2 = ½(2.50 kg)(4.53 m/s) = 25.66 J Gravitational Potential Energy GPE = mg h 12. A 5.0 kg mass is initially sitting on the floor when it is lifted onto a table 1.15 meters high at a constant speed. a. How much work will be done in lifting this mass onto the table? Ans. W = F d = m g d = 5.0 kg .

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Liming · Specifically, momentum = mass x velocity = m v Eg. Just as a truck and a roller skate have different inertia, when they are moving, they (generally) have different momenta. Question: (i) Does the truck always have more inertia than The orange fish has mass 4 …

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Two manned satellites approaching one another, at a relative speed of 0.250 m/s, intending to dock. The first has a mass of 4. 00 × 10 3 kg 4. 00 × 10 3 kg, and the second a mass of 7.50 × 10 3 kg 7.50 × 10 3 kg. (a) Calculate the final velocity (after docking) by using the frame of reference in which the first satellite was originally at rest.

Get a Quote### PHYSICS HOMEWORK #41 ENERGY CONSERVATION …

Kefid · Ans. 2TKE = ½mv2 = ½(2.50 kg)(4.53 m/s) = 25.66 J Gravitational Potential Energy GPE = mg h 12. A 5.0 kg mass is initially sitting on the floor when it is lifted onto a table 1.15 meters high at a constant speed. a. How much work will be done in lifting this mass onto the table? Ans. W = F d = m g d = 5.0 kg .

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Q. Two spherical objects have masses of 8000 kg and 1500 kg. Their centers are separated by a distance of 1.5 m. Find the gravitational attraction between them. answer choices. 5.4 X 10 -4 N. 1.2 X 10 7 N. 3.6 X 10 -4 N. 5.33 N.

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Liming · 1 An automobile of mass 1300 kg has an initial velocity of 7.20 m/s toward the north and a final velocity of 6.50 m/s toward the west. The magnitude and direction of the change in momentum of the car are A) 1.26 × 10 4 kg · m/s at 48º S of E D) 1.78 × 10 4 kg · m/s at 48º N of …

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Kefid · The NFL's Kansas City Chiefs have reached a financial agreement with the family of the 5-year-old girl who was seriously injured in a crash involving former assistant coach Britt Reid.

Get a Quote### Law of Universal Gravitation | Physics Quiz - Quizizz

Q. Two spherical objects have masses of 8000 kg and 1500 kg. Their centers are separated by a distance of 1.5 m. Find the gravitational attraction between them. answer choices. 5.4 X 10 -4 N. 1.2 X 10 7 N. 3.6 X 10 -4 N. 5.33 N.

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Kefid · of 62.5 m by a force of 15.0 N. The mass is A) 37.5 kg B) 3.00 kg C) 1.50 kg D) 6.00 kg E) 3.75 kg Ans: B Section: 4–3 Topic: Newton's Second Law Type: Conceptual 12 An object is moving to the right at a constant speed. Which one of the following statements must be correct?

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Liming · 48. A 5 kg mass, hung onto a spring, causes the spring to stretch 7.0 cm. What is the spring constant? What is the potential energy of the spring? Mixed Problems Class Work 49. A 5 kg rock is raised 28 m above the ground level. What is the change in its potential energy? 50. A 65 kg cart travels at constant speed of 4.6 m/s. What is its kinetic

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Kefid · PROBLEM 4.5 Two crates, each of mass 350 kg, are placed as shown in the bed . of a 1400-kg pickup truck. Determine the reactions at each of the two (a) rear wheels A, (b) front wheels B. SOLUTION PROBLEM 4.10 Solve Problem 4.9 if …

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