According to the law of conservation of energy, the total amount of energy in the universe?A. changes constantly
B. remains constant
C. increases
D. decreases

Answers

Answer 1

Answer: b. Remains constant

hope this helps

Related Questions

Which is 20 miles per hour north an example of?A.accelerationB.DirectionC.SpeedD.Velocity
A hydrogen atom has one proton, two neutrons, and no electrons. Is this atom neutrally charged? Explainyour answer.
Which of the following is not accurate when describing solids? A. Solids are better conductors of heat than liquids B. The amount of pressure exerted by a solid is solely dependent on its mass. C. Solids with many air pockets are good insulators. D. Molecules in solids are closer together than molecules in liquids.
Organisms that live in desert and desert-scrub biomes have developed unique adaptations that aid in their survival. The Sahara Desert takes up ten percent of the continent of Africa, and is the largest desert in the world. The species that live in the Sahara are highly adapted to survive in the extreme conditions they live in. What morphological and physiological adaptations might be seen in the organisms that live in the Sahara Desert?
What is meant by the following statement? "Inertia is directly proportional to mass." Inertia and mass are the same thing. Inertia and mass are the same size. Inertia increases as mass decreases. Inertia increases as mass increases.

A periodic wave is produced by a vibratingtuning fork. The amplitude of the wave would be
greater if the tuning fork were
(1) struck more softly
(2) struck harder
(3) replaced by a lower frequency tuning fork
(4) replaced by a higher frequency tuning fork

Answers

The amplitude of the wave would be greater if the tuning fork were "struck harder" since this would make for a louder noise, which happens from higher amplitudes.

Describe a situation when you might travel at a high velocity, but with low acceleration.

Answers

Sitting in your seat, reading a book and dozing, on a passenger jet flying straight and level at cruising speed and altitude.

The acceleration due to gravity on the surface of Jupiter is about 2.5 times the acceleration due to gravity on Earth’s surface. What would be the weight of a space probe on the surface of Jupiter?A.2.5 times lighter than on Earth
B.6.25 times heavier than on Earth
C.2.5 times heavier than on Earth
D.6.25 times lighter than on Earth

Answers

Answer: The correct answer is option C.

Explanation:

Weight = Mass × Acceleration

Let the mass of the space probe be m

Acceleration due to gravity on the earth = g

Weight of the space probe on earth = W

$W=m* g$

Acceleration due to gravity on the Jupiter = g' = 2.5g

Weight of the space probe on earth = W'

$W'=mg'=m* 2.5g$

$(W')/(W)=(m* 2.5g)/(m* g)$

$W'=2.5* W$

The weight of the space probe on the Jupiter will be 2.5 times the weight of the space probe on earth.

Hence, the correct answer is option C.

Answer:

2.5 times heavier than on Earth

Explanation:

Explain why dissolving is a physical change

Answers

It's a physical change because it is changing from one matter to another.

because the kinetic energy start to decrease, for example if we put sugar in a high temperature tea and we shake it what will happen to the sugar will the kinetic energy increase or decrease, it will probably decrease, just like us the people when we enter a cold room and we have a hot temp.

Write the different between the fall of a parachute on earth and its fall on the moon?on what condition does a body have free fall?

Answers

Answer:

Shown from explanation

Explanation:

You have heard that expression what ever goes up must come down that's usually used to mean when you throw an object up, it comes down on its accord. This is due to a force on the earth that occurs in nature known as gravity.

So when an object falls under this influence it's said to fall freely.

Note not all heavenly bodies have gravitational pull, from experience by scientists who went to the moon they found out whatever goes up keeps flying endlessly so in that case an external force is needed to keep objects in the moon on ground level.

Hence the parachute falls on earth freely without an external force but on the moon it must fall with an external force inputed on the parachute system.

This means in the earth we have free fall but in the moon no such thing exist. So a body falls freely when there is gravity.

From which of the following do spiral galaxies form?A. High-density proto-galactic clouds
B. Rapidly spinning proto-galactic clouds
C. Colliding/merging proto-galactic clouds
D. Rapidly cooling proto-galactic clouds

Answers

The correct answer to the question that is stated above is letter B, rapidly spinning proto-galactic clouds
The Milky Way is an example of a spiral galaxy.

Spiral galaxies came from a rapidly spinning proto-galactic clouds. They are formed from the collapse of a proto-galactic cloud.

Answer:

B. Rapidly spinning proto-galactic clouds

Explanation:

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Calculate the annual potential energy contained in the water that is held back by the dam. Assume an average height of the water, h of 100.0 m. Express the answer in GJ (at least three significant figures).