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rodikova [14]
3 years ago
9

If a 75-kg skater starts his skate at 8.0m, at his lowest point (height = 0), what is

Physics
1 answer:
Tanya [424]3 years ago
6 0
Mgh= 1/2 m v^2
gh= 1/2 v^2 9.8 * 8=  1/2 v^2
solve for v
V = sqrt(2gH)where H = 8 m.
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Please help me !! Thank you
ira [324]
I think it would be Fusing of 2 or more small atoms into a larger one
4 0
3 years ago
Read 2 more answers
The current in a lamp is 0.5 ampere when it is plugged into a standard wall outlet. What is the resistance of the lamp when it i
lidiya [134]

The resistance of the lamp plugged in to a standard wall outlet with a current of 0.5 amps is 240 Ω (ohms)

Explanation:

In the United States Of America the standard voltage is 120 v and their frequency is 60 Hz

Standard wall outlet voltage is 120 V

The current in the lamp is 0.5 ampere

Resistance (R) = V/ I

      = 120/0.5

      = 240Ω (ohms)

Thus the resistance of the lamp plugged in to a standard wall outlet with a current of 0.5 amps is 240 Ω (ohms).

8 0
3 years ago
Find the force required to do 25 joule work when the force causes a displacement of 0.5 m​
Eduardwww [97]

Answer:

<h2>50 N</h2>

Explanation:

The force required can be found by using the formula

f =  \frac{w}{d}  \\

w is the workdone

d is the distance

From the question we have

f =  \frac{25}{0.5}  \\

We have the final answer as

<h3>50 N</h3>

Hope this helps you

6 0
3 years ago
Which statement is true?
Fynjy0 [20]
If it's Kepler's law of equal areas you're talking about,
then the first of the four statements is true.
4 0
3 years ago
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After asking a question, a scientist can form a(n) , which is an idea that may be proved or disproved by an experiment.
DochEvi [55]

Answer:

When scientists have a question, they form a hypothesis, <em>which</em><em> </em><em>is</em><em> </em><em>an</em><em> </em><em>idea</em><em> </em><em>that</em><em> </em><em>may</em><em> </em><em>be</em><em> </em><em>proved</em><em> </em><em>or</em><em> </em><em>disproved</em><em> </em><em>by</em><em> </em><em>an</em><em> </em><em>experiment</em><em>.</em>

6 0
3 years ago
Read 2 more answers
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