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leonid [27]
3 years ago
7

only a relatively small part of the electromagnetic spectrum is visible. what determines which bands of the electromagnetic spec

trum are invisible to humans?
Physics
1 answer:
swat323 years ago
3 0

Answer:

hsnzbssj

Explanation:

<h2>skibbbbbbbbbbbbibi</h2>
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Light travels at a speed of 2.998*108 m/s. Light takes approximately 3.25 minutes to travel from the Sun to reach a planet. Calc
ANTONII [103]

Answer:

585×10⁸ m

Explanation:

Distance = rate × time

d = (2.998×10⁸ m/s) (3.25 min) (60 s/min)

d = 585×10⁸ m

5 0
3 years ago
Please need help on this not too sure on this
n200080 [17]

Answer:

the last one

Explanation:

Because it is a magnifying glass, it magnifies the object and makes it bigger than it appears

3 0
3 years ago
Read 2 more answers
Help this Is easy for you
DochEvi [55]

Answer:

if its so easy why dont u do it  .

Explanation:

6 0
3 years ago
Example: A wooden crate with mass 100kg is at rest on a stone floor. You know that the coefficients of kinetic and static fricti
alexgriva [62]

Answer

Any force greater 490N

Explanation

The force required just to make an object slide over a rough horizontal surface is any force greater that the static friction which given by;

F=\mu_s mg.............(1)

Given;

\mu_s=0.5\\m=100kg\\g=9.8m/s^2

Hence;

F = 0.5 x 100 x 9.8

F = 490N.

We will only need the coefficient of kinetic friction if we were asked to find the force required to keep the object moving uniformly. Usually, the force needed to keep an object moving uniformly over a rough surface is lesser that which is needed to start its motion.

In this problem, we were only asked to find the minimum force required to make the object move which we have done.

7 0
3 years ago
There are free body diagrams in the picture, number (#). Which of the diagram(s) shows an object with a net force right?
ryzh [129]
4 only diagram net Force
6 0
3 years ago
Read 2 more answers
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