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lara31 [8.8K]
3 years ago
13

Incident rays parallel to the axis of a concave mirror reflect parallel to the axis.

Physics
1 answer:
coldgirl [10]3 years ago
3 0
No they don't.  Incident rays parallel to the axis of a concave mirror
reflect from the mirror's surface and converge at its focal point.
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During a storm, the power went out at Bailey’s house. She had no electricity. What could she use as an alternate form of electri
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A battery operated lamp because battery's don't use your own electricity. They come with electricity already.
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3 years ago
If we decrease the amount of force applied to an object, and all other factors remain the same, the amount of work completed wil
Nat2105 [25]
A ) decrease.
B ) increase.
C ) increase, then decrease.
D ) not change.

The answer is A) decrease

Take pushing a box, for example-- You  push your hardest then give out, still trying to push the box. You are doing less work than what you have started with!

( Mind marking me for branliest? ; ) )
4 0
3 years ago
A 14-kg object moving with a constant velocity
natta225 [31]

The final velocity of the 14 kg object is 1.6 m/s in the same direction

Explanation:

We can solve this problem by using the law of conservation of momentum: the total momentum of the system must be conserved before and after the collision. Therefore, we can write

p_i = p_f\\m_1 u_1 + m_2 u_2 = m_1 v_1 + m_2 v_2

where:

m_1 = 14 kg is the mass of the first object

u_1 = 5.0 m/s is the initial velocity of the first object

v_1 is the final velocity of the first object

m_2 = 8.0 kg is the mass of the second object

u_2 = 3.0 m/s is the initial velocity of the second object

v_2 = 9.0 m/s is the final velocity of the second object

Re-arranging the equation and substituting the values, we find:

v_1 = \frac{m_1 u_1 + m_2 u_2 - m_2 v_2}{m_1}=\frac{(14)(5.0)+(8.0)(3.0)-(8.0)(9.0)}{14}=1.6 m/s

And the direction is the same as the initial direction, since it has the same sign.

Learn more about conservation of momentum:

brainly.com/question/7973509

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#LearnwithBrainly

4 0
3 years ago
In the chemical formula for an ionic compound, which item is written first?
tatuchka [14]

Explanation:

C,

.hahxxjdndjdndjgfndkndidjdodnxondos

5 0
3 years ago
Can you harvest energy by impact force in a battery? Explain your answer. ​
Pavlova-9 [17]

Answer:

1. Resistance

2. Store chmical energy and transfer it to electrical energy when a circuit is connected

3.Electric current

4. Series and parallel

5. can't see diagram

6. series

7. Parallel

8. can't not see diagram

Explanation:

6 0
3 years ago
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