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larisa [96]
3 years ago
12

Laura puts her file cabinet on a small cart with wheels which will occur. A Laura will increase the amount of friction. B Laura

will reduce the force she needs C Laura will decrease the amount of motion D Laura will increases the force she needs
Physics
1 answer:
kow [346]3 years ago
6 0

Answer: b

Explanation:

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Answer:

An increase in angular speed due to conservation of energy priciple.

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A man stands still on a moving walkway that is going at a speed of 0.3 m/s to the south. What is the velocity of the man accordi
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The law of inertia is most commonly experienced when riding in cars and trucks. In fact, the tendency of moving objects to continue in motion is a common cause of a variety of transportation injuries - of both small and large magnitudes. Consider for instance the unfortunate collision of a car with a wall. Upon contact with the wall, an unbalanced force acts upon the car to abruptly decelerate it to rest. Any passengers in the car will also be decelerated to rest if they are strapped to the car by seat belts. Being strapped tightly to the car, the passengers share the same state of motion as the car. As the car accelerates, the passengers accelerate with it; as the car decelerates, the passengers decelerate with it; and as the car maintains a constant speed, the passengers maintain a constant speed as well.

But what would happen if the passengers were not wearing the seat belt? What motion would the passengers undergo if they failed to use their seat belts and the car were brought to a sudden and abrupt halt by a collision with a wall? Were this scenario to occur, the passengers would no longer share the same state of motion as the car. The use of the seat belt assures that the forces necessary for accelerated and decelerated motion exist. Yet, if the seat belt is not used, the passengers are more likely to maintain its state of motion. The animation below depicts this scenario.

If the car were to abruptly stop and the seat belts were not being worn, then the passengers in motion would continue in motion. Assuming a negligible amount of friction between the passengers and the seats, the passengers would likely be propelled from the car and be hurled into the air. Once they leave the car, the passengers becomes projectiles and continue in projectile-like motion.

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3 years ago
On a beautiful night in Washington D.C., you see a mirror image of the Washington Monument and surrounding scenery. What causes
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Your answer would be B, Reflected light! hope this helps
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