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hram777 [196]
3 years ago
10

Calculate the power to move a 9j box in 20 seconds​

Physics
1 answer:
dalvyx [7]3 years ago
3 0

Answer:

please find attached pdf

Explanation:

Download pdf
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An object is realsed From rest . how far does it fall during the second second of fall?​
Savatey [412]

Answer:

14.715 m

Explanation:

Assume that the acceleration due to gravity is 9.81 m/s^2 downwards, take downwards as positive

First second:

v = u + at

v = 9.81 m/s

Second second:

s = ut + (1/2)at^2

s = 9.81(1) + (1/2)(9.81)(1)^2

s = 14.715 m

6 0
3 years ago
Do all of them please and explain
kondaur [170]

At 305 and 309 it was negative because it is going down


at 300 and 301 and 305 it was positive because its going up


at 302/303/304/306/309 she wasn't accelerating at all because it is staying the same

5 0
3 years ago
Read 2 more answers
Which description best explains why the view within the rectangle lens is different than the view outside the lens?
Viktor [21]

Answer:

A) Light waves are restricted to a single plane through the lens.

Explanation:

Took the quiz and got it right

8 0
3 years ago
A ball, initially at rest, reaches a speed of 20 m/s at the bottom of the apparatus. If it takes the ball 10 seconds to reach th
MariettaO [177]

Answer:

2 m/s²

Explanation:

Given:

v₀ = 0 m/s

v = 20 m/s

t = 10 s

Find: a

a = (v − v₀) / t

a = (20 m/s − 0 m/s) / 10 s

a = 2 m/s²

3 0
3 years ago
What is total revenue in economics​
dsp73

Answer:

be more specific

Explanation:

4 0
3 years ago
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