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pychu [463]
4 years ago
10

10 PTS! HELP!

Physics
1 answer:
tino4ka555 [31]4 years ago
6 0
Shortsightedness is corrected<span> using a concave (curved inwards) lens which is placed in front of a myopic eye, moving the image back to the retina and making it clearer. Longsightedness is </span>corrected <span>using a </span>convex <span>Hyperopia is known to you probably as farsightedness(</span>outward facing) lens.
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What happens to the speed of an object when dropped at free fall
dedylja [7]

If it's not falling through air, water, smoke, or anything else,
and gravity is the only force on it, then its speed increases
at a constant rate ... 9.8 meters per second for every second
it falls.  (That's the number on Earth.  It's different in other places.)
3 0
4 years ago
An area with excess electrons has a net _____ charge; an area with a deficit of electrons has a net _____ charge. Question 10 op
Ivenika [448]

Answer:

negative, positive

Explanation:

A we know that the electrons have a negative charge.

So, when a body has some excess electrons, it means it has negative charge.

When a body has an deficiency of eletrons, it means it gains a positive charge.

An area with excess electrons has a net _<u>negative</u>__ charge; an area with a deficit of electrons has a net _<u>Positive</u>____ charge.

8 0
4 years ago
Gravitational potential energy is due to....
mote1985 [20]

Answer:

A

Explanation:

I only think its A because of the gravity part...sorry im not good at explaining

5 0
3 years ago
If you throw a 5 kg basketball with a force of 10 N, what is the object's acceleration?
77julia77 [94]

Answer:

20m /s2

Explanation:

8 0
3 years ago
A glider is initially moving at a constant height of 3.72 m. It is suddenly subject to a wind such that its velocity at a later
My name is Ann [436]

Answer:

17.89\ \text{m/s}

Explanation:

Velocity is given by

v(t) = 16.02\hat{i}-7.96(1 + t)\hat{j} + 0.76t^3\hat{k}

Initial velocity is asked so t = 0

v(0)=16.02\hat{i}-7.96(1+t)\hat{j}+0.76\times 0\hat{k}\\\Rightarrow v(0)=16.02\hat{i}-7.96\hat{j}

Magnitude is given by

|v|=\sqrt{16.02^2+(-7.96)^2}\\\Rightarrow |v|=17.89\ \text{m/s}

The initial velocity of the glider was 17.89\ \text{m/s}.

5 0
3 years ago
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