Physics Middle School

What two advantages do CD’s have over long play records?
This is science

Answers

Answer 1

Answer:

CDs have more than 10 times the dynamic range of LPs and great sound quality. (I hope this helps)

Explanation:

Related Questions

Which body is found inside the solar system?


moon


black hole


galaxy


nebula

Answers

a.moon (because the rest are space structures)

What important milestone occurred as a result of the Soviets' use of the R-7
rocket?
A. The first space-based telescope achieved orbit.
B. The first artificial satellite orbited Earth.
C. The first human traveled to space.
D. The first measurements of radiation in space were made.

Answers

Answer:

B

Explanation:

Give one example when it might be important to know how much gravitational potential energy is stored by an object. Why is it important?

Answers

Answer:

A possible situation in knowing the gravitational potential energy of an object is to find it's maximum kinetic energy. It can be important if I would want to calculate the velocity the object will be having if the potential gravitational energy will be converted into kinetic by using the formula.

Answer ASAP! but only if you know 100%, and whoever gets it right can have brainliest

Answers

Answer:

You could find billions of stars in a galaxy, hope this helps.

Hi! Allow me to help you-! :)

**Answer**

The answer is billons, 100 billon to be exact.

Reasoning:

If you looked up in the night sky, you'd see so many stars. Everyone else looking up can see them too. Weather they are in Canada, or Flordia. There isnt just 100, or 1000 or 1 millon, there are billons.

Therefore, your answer is D. Billons.

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what is a force that is caused by air that slows objects down?

Answers

Friction drag force causes objects to slow down as they move through a fluid, such as air or water.

Answer:

Drag

Explanation:

Drag is also used to slow down the speed of a rocket ship after using the thrusters.

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How does the melting of ice caps near the North Pole affect the salinity of the ocean?
A.
Salinity decreases because freshwater flows into the ocean.
B.
Salinity increases because salt from the ice caps flows into the ocean.
C.
There is no change in the ocean’s salinity with this process.
D.
Salinity increases because of the stored pockets of air and salt.

Answers

The salinity of the water goes down as the icecaps melt. That is because the icecaps are fresh water, meaning there's no salt in that ice. If they melt rapidly, the water mixes with the ocean water that is salty and since fresh water is added, the salinity reduces and the oceans become less salty. Please mark as brainliest
A!

salinity in surrounding ocean will decrease due to the fact that ice caps are fresh water, the more ice caps melt, the lower the salinity as the water from ice caps continue to dilute the ocean.

Question 1 of 10
The gravitational energy of a golf ball at different heights is shown in the
table below.
Height Gravitational energy (J)
1
0.45
2
2
0.90
3
1.35
4
1.80
Which graph best represents the relationship between the ball's gravitational
energy and its height above the ground?

Answers

Answer:

the gravitational energy of a golf ball at differnt heights is shown in the table below which graph best represent the relationship between the ball's gravitational energy and its height above the ground. I need helplease. See answers. Advertisement. yeabsiraerstu. Answer: A because it's uniform. Its right on a-p-e-x thanks. Advertisement. Nind10.

Explanation:

The graph that would best represent the relationship between the ball's gravitational energy and its height above the ground is a straight line graph.The straight line graph would start from zero and increase linearly as the height of the ball above the ground increases.

The graph that best represents the relationship between the ball's gravitational energy and its height above the ground is a straight line graph. The energy of a golf ball at different heights is directly proportional to the height of the ball above the ground.

Therefore, the graph that would best represent the relationship between the ball's gravitational energy and its height above the ground is a straight line graph.The straight line graph would start from zero and increase linearly as the height of the ball above the ground increases.

The straight line would have a positive slope, and the steeper the slope, the greater the rate at which the energy increases with height. Therefore, the straight line graph that represents the relationship between the ball's gravitational energy and its height above the ground would be a straight line with a positive slope.

The graph would show the gravitational energy on the y-axis, and the height of the ball above the ground on the x-axis. The graph would show the increase in gravitational energy with an increase in height above the ground, and it would show a straight line graph with a positive slope that represents this relationship between the ball's gravitational energy and its height above the ground.

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Janet was pulling a box that weighed 20N across 5m. How much work did she exert?

Answers

Answer:

100nm

Explanation:

Work=Force×distance

=20×5

=100nm

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