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Marysya12 [62]
3 years ago
14

A physical change can be distinguished from a chemical change because during a physical change- A. the properties of the substan

ce may change, but no new substances are produced B. the properties of the substance change for only a short time but will return to their original state. C. an entirely new substance with new properties forms as a result of the change D. a new substance is produced, but the new substance has properties identical to the original substance.
Physics
1 answer:
joja [24]3 years ago
3 0

Answer:

a

Explanation:

yw

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6. Given that white light contains all colors of the spectrum, what growth result would you expect under white light?
lesya692 [45]

You could probably expect normal plant growth, as a white light is similar to the sun in the respect that it contains all colors of the spectrum.

4 0
3 years ago
A body is projected vertically upwards with a velocity of 10m/s from a vertically upward position at height h another body is dr
RoseWind [281]

Answer:

0.25 second  

Explanation:

Given :

Velocity, v = 10 m/s

The height,

$ h = \frac{v^2}{2g} $

$ h = \frac{10^2}{2\times 9.8} $

   = 5 m

Therefore the time at which both the bodies meet is

$ t = \frac{h}{v+v} $

$ t = \frac{5}{10+10} $

$ t = \frac{5}{20}  = 0.25$

So, time taken is 0.25 seconds

3 0
3 years ago
Classify the following situations as involving balanced or unbalanced forces.
wariber [46]

Answer:

1. A. yeah but I'm not going anywhere else in

2. B. ugh I'm so happy for her and she

4 0
3 years ago
What kind of image is formed by an object that is placed beyond the center of curvature on the principal axis of a concave mirro
Delicious77 [7]
As it is outside the focal point it must be real.Real images must be inverted.
As it is beyond the centre of curvature it is also beyond 2F which means that the image is inside the centre of curvature ( between F and 2F from the mirror ) As the image is closer to the mirror than the object it must be diminished in size.

Hope this helps you :)
8 0
3 years ago
Read 2 more answers
What affects sounds at their source
zheka24 [161]

Answer:

that's called Doppler effect

Explanation:

its observed because the distance between the source of sound and the observer is changing. If the source and the observer are approaching, then the distance is decreasing and if the source and the observer are receding.

-Hops

4 0
4 years ago
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