4 years ago

Please help me.

Physics

2 answers:

cricket20 [7]4 years ago

8 0

Answer:

go to khan acamedy

Explanation:

vesna_86 [32]4 years ago

4 0

A) the tension in the string.

You might be interested in

When you get a tooth pulled it leaves a big hole in your mouth. Eventually, that hole closes. How does that hole close

Virty [35]

It doesn’t, a new tooth underneath your old one starts to push the right old one out, then the tooth comes loose and the tooth underneath continues growing.
Hope my answer helps!

3 0

2 years ago

Is it true that acceleration occurs when there is a change in speed

Amanda [17]

Yes it does. But not always

4 0

3 years ago

Read 2 more answers

Suppose a convex mirror has a focal length of 120 cm. A candle sits directly in front of the mirror. If the image of that candle

Andru [333]

We can solve the problem by using the mirror equation:
$\frac{1}{f} = \frac{1}{d_o}+ \frac{1}{d_i}$
where
f is the focal length
$d_o$ is the distance of the object from the mirror
$d_i$ is the distance of the image from the mirror

For the sign convention, the focal length is taken as negative for a convex mirror:
$f=-120 cm$
and the image is behind the mirror, so virtual, therefore its sign is negative as well:
$d_i=-24 cm$
putting the numbers in the mirror equation, we find the distance of the object from the mirror surface:
$\frac{1}{d_o} = \frac{1}{f}- \frac{1}{d_i}= \frac{1}{-120 cm} - \frac{1}{-24 cm}= \frac{1}{30 cm}$
So, the distance of the object from the mirror is $d_o = 30 cm$

8 0

3 years ago

Suppose the wavelength of the light is 450 nm . how much farther is it from the dot on the screen in the center of fringe e to t

lbvjy [14]

Since you are looking at a right fringe, the answer is all the time a multiple of the wavelength for the reason that the light makes constructive intrusion. If you are looking at the center (zeroth) fringe, the difference is (450)(0) = 0. For the first maximum, the difference is 450 nm. For the second, it is 450 x 2 = 900 nm. Basically, for the nth maxima, the difference is 450n.

8 0

3 years ago

The cycle is a process that returns to its beginning, but it does not repeat

madreJ [45]

False. It does repeat itself

5 0

3 years ago