PHYSICS MIDDLE SCHOOL

A basketball has a mass of 1 kg and is traveling 15 m/s. How fast would a 5 kg bowling ball have to travel to have the same momentum?A) 3 m/s

B) 15 m/s

C) 1 m/s

D) 5 m/s

Answers

Answer 1
Answer: A) 3 m/s. Hope this helps.
Answer 2
Answer:

Answer:

A 3m/s

Explanation:

Took the test (k12)

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1)A cyclist travels ¾ of a circular track from A to b as shown in figure. The radius of the circular track is 400 m. Calculate the displacement and distance travelled by the cyclist.PLEASE SHOW ALONG WITH STEPS(1) 2)Two objects having their masses 3:5 are acted upon by two forces.The forces are in the ration of 5:3. find the ration in their accelerations. PLEASE SHOW ALONG WITH STEPS (2) 3) A man pushes a box of mass 50 kg with a force of 80 N. What will be the acceleration of the box due to the force? what would be the acceleration if the mass were doubled? PLEASE SHOW ALONG WITH STEPS(3) 4) How does the force of gravitation between two objects change when the distance between them is reduced to half. PLEASE SHOW ALONG WITH STEPS (4) 5) Explain what happens to the force between two objects if: A) the mass of one object is doubled? B) the distance between the object is tripled. PLEASE SHOW ALONG WITH STEPS (5) 6)How will the equations of motion for an object moving with a uniform velocity change? PLEASE SHOW ALONG WITH STEPS (6) 7)The force of attraction between two bodies is 20N. Calculate the force between them when mass of each body as well as the distance between them are halved. PLEASE SHOW ALONG WITH STEPS(7)

Beginning with earth, summarize the structure of the universe. Also Andromeda galaxy is located appromaxily 2.5 million light-years from earth. Why is the light that reaches earth 2.5 million years old. So many points look.

Answers

because of the power of the light it is very strong so that is why light reaches all the way to earth

Vivid writing includes ___ descriptions of things that can be seen, touched, heard, smelled, and tasted. A. sensuous B. tangent C. tangible D. vociferous

Answers

Vivid writing includes tangible descriptions of
things that can be seen, touched, heard, smelled, and tasted.

A car is strapped to a rocket (combined mass = 661 kg), and its kinetic energy is 66,120 J.At this time, the rocket runs out of fuel and turns off, and the car deploys a parachute to slow down, and the parachute performs 36,733 J of work on the car.

What is the final speed of the car after this work is performed?

Answers

Answer:

9.43 m/s

Explanation:

The law of conservation of energy requires that the total energy before and after transformation must be equal. Kinetic energy of car and rocket combined equals the parachute energy and that of car.

Final energy of car will be 66120-36733=29,387 J

Kinetic energy, KE=0.5mv^(2) and making v the subject of the formula then v=\sqrt{\frac {2KE}{m}}

Where m is the mass and v is velocity.

Substituting 29387 J for KE and 661 kg for m then

v=\sqrt{\frac {2* 29387}{661}}=9.42957012478699\approx 9.43\ m/s

Magnets are often fitted to the doors of refrigerators and cupboards WHY?

Answers

So that the door can close more quickly and without you having to push it back. Not sure, but that's what I think.

Final answer:

Magnets are used in the doors of refrigerators and cupboards to keep the doors closed firmly, create a reliable seal, and increase energy efficiency.

Explanation:

Magnets are often fitted to the doors of refrigerators and cupboards for a reason rooted in physics. This setup helps in keeping the doors closed firmly. The magnets are usually embedded in the door seal, creating an attraction with the metal body of the refrigerator or cupboard. This magnetic attraction pulls the door seal flush against the refrigerator when the door is closed, making an airtight seal. As a result, it prevents the cold air inside the refrigerator from escaping, thereby maintaining the interior temperature and ensuring energy efficiency.

Learn more about Magnets here:

brainly.com/question/33916107

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Inertie is the resistance to change in motion so inertia depends solely on what?

Answers

Inertie is the resistance to change in motion so inertia depends solely
on the mass of the object being coaxed to change its motion.

Explain why the gravitational acceleration of any object near earth is the same matter what was the mass of the object

Answers

It takes greater force to accelerate an object that has more mass. But the gravitational force between the Earth and an object is greater when the object hass more mass. It works out just right to make any object with any mass accelerate at the same rate.
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