If the velocity of an object is changing, its momentum is also changing. true or false

Answers

Answer 1

Answer: It is absolutely true that when the velocity of an object changes, the momentum of the object also change. Momentum of any object is defined as the multiple of velocity of an object and the mass of the object. So we can easily deduce that momentum is directly proportional to velocity of an object if the mass of the object remains constant. So it can be seen that if the mass of the object does not change then any change in velocity is bound to have an effect on the momentum of the object. We can easily write the equation as momentum= mass x velocity.

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A scientific law is based on repeated inferences made over long periods of time.

Answers

A scientific law is based on repeated inferences made over long periods of time.
TRUE

Answer:

False

Explanation:

The air temperature is 70 degrees, and the relative humidity is 90%. Which conclusion can be made?(1 point)The air holds little water vapor and is relatively dry.

The amount of water vapor in the air is 90% of what the air can hold.

The dew point temperature is 90% of the air temperature.

The temperature must rise in order for air to become saturated with water vapor.

Answers

Answer:

The amount of water vapor in the air is 90% of what the air can hold.

Explanation:

The answer is A

Answer: The answer is B: The amount of water vapor in the air is 90% of what the air can hold

Alpha particles \ beta particles / gamma radiation Put these different types of radiation in order from MOST to LEAST penetrating.

Answers

It goes: Gamma radiation > beta particles > alpha particles

Answer:

Gamma > Beta > Alpha

Explanation:

A cannon tilted upward at θ = 30 ∘ fires a cannonball with a speed of 94 m/s .

Answers

Answer:

i think 30

Explanation:

because the 0-30

Please help me! Ill give brainliest who helps me first!!!!What is one difference between mixtures and pure substances?
A. mixtures can be physically separated
B. mixtures are made of one type of atom
C. pure substances have no chemical bonds
D. pure substances can be physically separated

Answers

i think it’s A hope this helps

Mixtures can be physically separated (I believe)

Joseph lifted a parcel from the floor. If he lifts the same parcel twice as high, then it will have ____________. A) Half the weight B) The same weight C) Twice the weight D) A weight of zero

Answers

Answer: B

Explanation: He lifts the same thing just double the height

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Sodium hydroxide (NaOH) was added to pure water (H2O). Which most likely were the pH values of the water before and after the sodium hydroxide was added to it?A. before = 7, after = 9 B. before = 7, after = 4 C. before = 4, after = 7 D. before = 9, after = 7