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PtichkaEL [24]
3 years ago
6

Potency or Power

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

Answer:

In physics we call it power

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A force of 400.0N is exerted on a 1,250N car while moving it at a distance of 3.0m. How much work was done on the car?
S_A_V [24]

Answer:

1200 J

Explanation:

Work=force * displacement/distance

Work=400 * 3

Work=1200 J

8 0
3 years ago
THE RIGHT ANSWER WILL RECEIVE A BRAINLESS AND POINTS AND THANKS!!!
poizon [28]

Answer:

391.67Hz

Explanation:

The fundamental frequency formula in string is expressed as;

Fo = V/2L

V is the velocity of the wave = 329m/s

L is the length of the string = 42cm = 0.42m

Substitute

Fo = 329/2(0.42)

Fo = 329/0.84

Fo = 391.67Hertz

Hence the  fundamental frequency of a mandolin string is 391.67Hz

4 0
3 years ago
A liquid has a density of 0.85 g/cm. If you pour some of the liquid into a glass of water, will the liquid float?
muminat

Answer:

Yes, it will float.

Explanation:

It is given that,

A liquid has a density of 0.85 g/cm³.

We know that, the density of water is 1 g/cm³.

The density of the liquid is less than that of water. If the density of the liquid is less than that of water, it will float in it. Hence, if you pour some of the liquid into a glass of water, it will float.

4 0
3 years ago
the earth's moon has a gravitational field strength of about 1.6 n/kg near its surface. the moon has a mass of 7.35x10^22 kg. wh
Andrew [12]

Answer:

1750km

Explanation:

8 0
3 years ago
a hiker in africa discovers a skull that contains 43% of its original amount of c-14 Find the age of the skull to the nearest ye
11Alexandr11 [23.1K]
The amount of C-14 at time t is
N(t) = N_{0} e^{-Kt}
where
N₀ = inital amount of C-14
t = years
K = 0.0001 = 10⁻⁴

When the skull was discovered, the amount of C-14 contained 43% of N₀.
Therefore
e^{-10^{-4}t} = 0.43 \\\\ -10^{-4} t = ln(0.43) \\\\ t = - \frac{ln(0.43)}{10^{-4}} =8439.7 \, years

Answer:
The age of the skull s 8440 years (nearest integer)
8 0
4 years ago
Read 2 more answers
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