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sineoko [7]
3 years ago
5

Use the drop-down menus to answer the questions.

Physics
2 answers:
mr Goodwill [35]3 years ago
4 0

Explanation:

1. Convex mirror is curved outward.

2. Convex mirror forms an image that is smaller than the object.

3. Concave mirror is used to focus light rays. That's why it is also known as a converging mirror.

4. Plane mirror has a flat surface. It forms the same size of the image as that of the object.

geniusboy [140]3 years ago
4 0
Convex, convex, concave, and plane
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The mass of the car?
Nonamiya [84]

Answer:

1050 kg

Explanation:

The formula for kinetic energy is:

KE (kinetic energy) = 1/2 × m × v² where <em>m</em> is the <em>mass in kg </em>and <em>v</em> is the velocity or <em>speed</em> of the object <em>in m/s</em>.

We can now substitute the values we know into this equation.

KE = 472 500 J and v = 30 m/s:

472 500 = 1/2 × m × 30²

Next, we can rearrange the equation to make m the subject and solve for m:

m = 472 500 ÷ (1/2 × 30²)

m = 472 500 ÷ 450

m = 1050 kg

Hope this helps!

3 0
1 year ago
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A 10 kg brick and a 1 kg book are dropped in a vacuum. The force of gravity on the 10 kg brick is what?
Nadya [2.5K]
<span>10 times as much. Since F=m*a, and a is constant, the only thing that affects force is the mass.

In response to the below answer, the acceleration due to gravity does not change. The force due to gravity definitely DOES change depending on the mass of the object. Since the force is what the problem asks for, the answer is 10</span>
7 0
2 years ago
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Why do polar compounds tend to have higher melting points than nonpolar compounds
I am Lyosha [343]

Answer:

The inter-molecular forces holding non-polar compounds together is low compare to that of polar compounds. Therefore, it will take less energy to break the bond for non-polar compounds and vice versa. That is why polar compounds have higher melting points than non-polar compounds.

Explanation:

5 0
3 years ago
What is kinetic energy? Question 1 options: energy that is due to motion energy that is stored the mass of an object the rate at
mario62 [17]
<span>Kinetic Energy means energy that a body possesses by virtue of being in motion. I hope this helps!!!</span>
8 0
3 years ago
The water waves below are traveling along the surface of the ocean at a speed of 2.5 m/s and
gavmur [86]

Answer:2 seconds

Time= Distance/speed

=50/25

=2seconds

3 0
3 years ago
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