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bogdanovich [222]
3 years ago
5

I need this asap pls ​

Physics
1 answer:
user100 [1]3 years ago
3 0

Answer:

2 i think

Explanation:

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Calculate the height from which a body is released from rest if its velocity just before hitting the ground is 30ms
nexus9112 [7]
S= ?
U= 0 ms^{-1}
V= 30 ms^{-1}
A= 9.8 ms^{-2}
T= 

V^2 = U^2 + 2AS
900 = 19.6S
\frac{900}{19.6} = S
S = 45.92 m
6 0
4 years ago
How much work<br> was done to<br> accelerate a 2.2<br> kg object from<br> rest to 26m/s?
Makovka662 [10]

Answer:

Explanation:

<em>work</em><em> </em><em>done</em><em> </em><em>=</em><em> </em><em>change</em><em> </em><em>in</em><em> </em><em>kinetic</em><em> </em><em>energy</em><em>,</em><em> </em><em>assuming</em><em> </em><em>there</em><em> </em><em>are</em><em> </em><em>no</em><em> </em><em>energy</em><em> </em><em>losses</em><em>.</em>

<em>work</em><em> </em><em>done</em><em> </em><em>=</em><em> </em><em>1</em><em>/</em><em>2</em><em> </em><em>×</em><em> </em><em>m</em><em> </em><em>×</em><em> </em><em>c</em><em>h</em><em>a</em><em>n</em><em>g</em><em>e</em><em> </em><em>in</em><em> </em><em>v</em><em>^</em><em>2</em>

<em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>=</em><em> </em><em>1</em><em>/</em><em>2</em><em> </em><em>×</em><em> </em><em>2</em><em>.</em><em>2</em><em> </em><em>×</em><em> </em><em>(</em><em> </em><em>26</em><em>^</em><em>2</em><em> </em><em>-</em><em> </em><em>0</em><em>^</em><em>2</em><em>)</em>

<em> </em><em> </em><em> </em><em> </em><em> </em><em>=</em><em> </em><em>1</em><em>/</em><em>2</em><em> </em><em>×</em><em> </em><em>2</em><em>.</em><em>2</em><em> </em><em>×</em><em> </em><em>676</em>

<em> </em><em> </em><em> </em><em> </em><em> </em><em>=</em><em> </em><em>743</em><em>.</em><em>6</em><em> </em><em>joules</em>

4 0
2 years ago
I need help with all four questions the answer choices are 1 law 2 law 3 law
Mars2501 [29]

Answer:

6

Explanation:

just trust

3 0
3 years ago
What would the distance be if a bicyclist traveled 4.5 hours at a speed of 20.0km/h?
Mice21 [21]
5.5 is the answer i think
3 0
3 years ago
A 300 kg block of dimensions 1.5 m × 1.0 m × 0.5 m lays on the table with its largest face.
netineya [11]

Answer:

1.5

x <u>1</u><u>.</u><u>0</u>

1.50

x <u>0</u><u>.</u><u>5</u>

075.00

answer: 75.00m

Explanation:

I hope this help

7 0
3 years ago
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