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Gnom [1K]
2 years ago
15

HELP PLS PLS PLS I WILL MARK U BRAINLIEST!!!

Physics
2 answers:
SIZIF [17.4K]2 years ago
4 0

Answer:

zicron

Explanation:

it has a large refractive index

cluponka [151]2 years ago
3 0

Answer:

glass is optically denser as it is a optical material having more index number above the list

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Suppose you drop a tennis ball from a height of 6 feet. After the ball hits the floor, it rebounds to 80% of
sasho [114]
The formula to solve this is (.80)^3 X 6 and the answer would be 3.1 feet. That is how high the ball will rebound after its third bounce. Thank you for posting your question. I hope that this answer helped you. Let me know if you need more help. 
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3 years ago
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Question 1 (1 point)
Dmitry [639]

1). trajectory

2). person sitting in a chair

3). 490 meters

4). 65 m/s

5). False.  The projectile's displacement, velocity, and acceleration have vertical and horizontal components, but the projectile doesn't.

6). False

7). The vertical component of a projectile doesn't change due to gravity, but the vertical components of its displacement, velocity, and acceleration do.

The vertical components do NOT equal the horizontal components.

8). Decreasing if you include the effects of air resistance.  Constant if you don't.  Gravity has no effect on horizontal velocity.

9). We can't see the simulation.  But if the projectile doesn't have jets on it, then as it travels upward, its vertical velocity must decrease, because gravity is trying to not let it get away.

10). We can't see the simulation.  But if the projectile is traveling downward, we would call that "falling", and its vertical velocity must increase, because gravity is pulling it downward.

6 0
4 years ago
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How much current is drawn by a television with a resistance of 30 ω that is connected across a potential difference of 120v?
melomori [17]

By using the Ohms law, we can calculate the current.

Ohms law,

 \frac{V}{I}  = R

Here, V is potential difference, and R is the resistance.

Given,  V=120 V and R = 30 ohm.

Therefore, putting the given values in above relation , we get

\frac{120V}{I} = 30 ohm

or          I=\frac{120}{30} = 4 A

Thus, the current is drawn by a television 4 Ampere

8 0
4 years ago
I'm stuck on question 3. Could anyone please explain it?
sergiy2304 [10]
Peak voltage is 2
period is 40ms
frequency = 1/period = 25Hz
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3 years ago
Anything done scientifically can be relied upon to be accurate and reliable<br> A. true<br> B. false
weeeeeb [17]
False not all science experiments are done correctly
4 0
4 years ago
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