PHYSICS MIDDLE SCHOOL

If launched at the right speed, what could eventually happen to objects launched from Newton's theoretical cannon on the top of a mountain?

Answers

Answer 1
Answer: If the speed is higher than the orbital velocity, but not high enough to leave Earth altogether (lower than the escape velocity), it will continue revolving around Earth along an elliptical orbit. (D) for example horizontal speed of 7,300 to approximately 10,000 m/s for Earth.

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What is currently the most supported theory about the future of the universe A.)the universe could remain exactly as it is today B.) the universe may continue to expand C.) stars could burn out , causing the universe to become dark and cold D.) gravity could pull galaxies back together causing a reverse of the Big Bang
Average velocity can be calculated by dividing displacement over what? NVM its change in time
Mechanical waves are created when a source of energy causes a medium to ?
What metric unit is used to describe the mass of an object

Give an example of an energy conversion that produces an unwanted form of energy

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i think A light bulb that gives off heat. 
A HEATER IS A GOOD EXAMPLE!

_____ is the amount of energy given off by a star each second.

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The answer is luminosity.
Luminosity is the amount of energy given off by a star each second

What would happen if Earth absorbed all of the heat from the sun?(1 point) Responses Earth would become too cold. Earth would become too cold. Earth would become too hot. Earth would become too hot. Earth would eventually stop receiving heat. Earth would eventually stop receiving heat. Earth would lose all of its own heat.

Answers

Answer: Earth would become too hot.

Earth would eventually stop receiving heat.

Earth would become too cold.

Earth would lose all of its own heat.

Explanation:

Answer: EARTH WILL BECOME TO COLD

Explanation:

What type of material is inside the holes in an electrical outlet?

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The material is a type of springy brass that sort of grip the plugs when they get near the socket

What is the difference between a radio telescope, x-ray telescope, and optical telescope (both reflecting and refracting)

Answers

They all see different types of wavelengths
x-rays are similar to gamma rays 
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Is orange juice in an orange potential energy or kinetic energy?

Answers

Answer:

Potential energy.

Explanation:

The potential energy is the energy which is possessed by the body by the virtue of its position with respect to the others, electric charges and with other factors.

And the kinetic energy is defined as the energy of an object which is produced by the virtue of the motion of an object.

Therefore, in the given situation orange juice does not possess any velocity it is in rest. So orange juice is an orange potential energy.
It would be potential energy because it is not moving. 
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