PHYSICS MIDDLE SCHOOL

A _ spreads light into its own individual colors.

Answers

Answer 1
Answer: I don't know what you mean by this question but I'm going to say Prism.
Answer 2
Answer: A prism spreads light into its own individual colors.

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HIGH SCHOOL

how long does it take an acorn to hit the ground after dropping from the branch of a tree 12.5 m high?

Answers

The right formula to use is: T^2= 2d/g
where T= time taken
d = 12.5m
g = is a constant and is equal to 9.8m/s
therefore, T^2 = 2*12.5/9.8 
Using the values above, the time taken for the acorn to reach the ground is 1.59 second
T = 1.59 S
MIDDLE SCHOOL

The element chlorine has two naturally occurring isotopes. About 75% of chlorine isotopes are Cl-35 and about 25% are Cl-37. What is the average atomic mass of chlorine atoms?
A. 35.45 amu
B. 36.45 amu
C. 37.45 amu
D. 38.45 amu

Answers

Answer:

A) 35.45 amu

Explanation:

Average molar mass is given as

here we know that

now we have

ur answer i would beileve is a

MIDDLE SCHOOL

To bring a supertanker to a stop, it’s engines are typically cut off about 25 km from port. Why is it so difficult to stop or turn a supertanker

Answers

This is because a supertanker has a lot of mass, creating lots of inertia. This can be explained by Newton’s first law of motion, which says that any object wants to keep doing what it’s doing. Objects with greater mass have greater inertia, so it takes more force to change that object’s motion.
MIDDLE SCHOOL

What is meant by global warming? A.
It is the theory that water vapor increases Earth's temperature through clouds.
B.
It is the theory that Earth is warming due to greenhouse gas increases from human activity.
C.
It is the theory that the concentration of greenhouse gases is decreasing over time.
D.
It is the theory that the production of methane causes the greatest impact on the greenhouse effect.

Answers

The global warming is the uniform heating of the globe due to the effect of greenhouse gases.

Answer: Option B

Explanation:

Global warming is thus the theory that says that earth is warming up with an increase in temperature over time due to increment in the greenhouse gases.

These are greenhouse gases that are getting increased due to the human activity or say over exploitation of the natural resources. The heating of the globe has caused ozone layer depletion which is also causing warming.

Answer:

B.

It is the theory that Earth is warming due to greenhouse gas increases from human activity.

Explanation:

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