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Aleks04 [339]
3 years ago
12

A student runs 120 meters in 10 seconds. What is their speed? Question 6 options: 1.2 m/s 1200 m/s 120 m/s 12 m/s

Physics
1 answer:
dimulka [17.4K]3 years ago
3 0

Answer:

12 meters per second (12 m/s)

why?

Because if you divide 10 seconds by 10 and 120 by 10, you will get 12 meters in 1 second.

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Give an example of an atom that will give up its outermost electron easily. Explain why you chose this atom.
BARSIC [14]

Answer:

Cesium (Cs)

very low electronegativity

there are a bunch of cool videos online about Cesium reacting with water

most are faked but the general idea is a cool one as Cesium very quickly and easily gives up it's one and only outermost (or valence) electron

Explanation:

4 0
3 years ago
Carlota does 2000 J of work on a machine. The machine does 500 J of work. What is the efficiency of the machine?
Luden [163]
A. 4% you divide 2000 to 500 and you get 4 which is your answer
3 0
3 years ago
-<br> ZOOLS<br> 6) The mass of a motorcycle is 250 kg. What is?<br> A) Its weight on Earth in Newtons?<br> B) Its weight on the
marishachu [46]

Answer:

Explanation:

Weight is actually a force. A force can change depending on its location. A mass remains constant no matter where it is.

A)

F = m * a

m = 250 kg

a = 9.81 m/s^2

F = 250 * 9.81 = 2452.5 N

B)

The acceleration due to gravity on the moon is roughly 1/6 what it is on earth. You can check its value in your notes.

a = 9.81 + (1/6) = 1.635

m = 250

F = 250 * 1.635

F = 408.75

C)

The mass is the same anywhere in the universe.

250 kg

4 0
3 years ago
An actor who memorizes his lines word-for-word has demonstrated _____ learning.
Nana76 [90]
<span>Mechanical association learning used by an actor to memorize his lines</span>
8 0
3 years ago
Read 2 more answers
a pitcher throws a softball toward the home plate. when the ball hits the catchers mitt its horizontal velocity is 32 meters/sec
lora16 [44]

F = (mass)(acceleration) = ma

m = 0.2 kg

Vi = 32 m/s

t = 0.5 s

Vf = 0 m/s (since it was put to stop)

a=(Vf-Vi)/t

a=(0-32)/0.5

a = 64 m/s^2 (decelerating)

F = ma = (0.2 kg)(64 m/s^2)

F = 12.8 N

<span>Hope this answer will be a good h<span>elp for you.</span></span>

8 0
3 years ago
Read 2 more answers
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