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3 years ago

How is power defined

2 answers:

7 0

In physics, the amount of energy put out or produced in a given amount of time. Power<span> is often measured in watts or kilowatts. In mathematics, a</span>power<span> is a number multiplied by itself the number of times signified by an exponent placed to the right and above it.</span>

Vera_Pavlovna [14]3 years ago

3 0

Answer: the rate at which work is accomplished

Explanation: i don't really have a explanation i just did the test on k12 so i hope this helps so plz let me know if u have any further questions that i may or may not be able to help

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The Back Saver Sit and Reach from the Fitnessgram measure this fitness component.

MAVERICK [17]

The correc answer is B.

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3 years ago

Can y’all help me with 5 plsssss

Alona [7]

Answer:

Bar graph

Explanation:

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3 years ago

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At an instant when a soccer ball is in contact with the foot of the player kicking it, the horizontal or x component of the ball

dedylja [7]

Answer:

Magnitude of net force will be 432.758 N

Explanation:

We have given x component of acceleration $a_x=760m/sec^2$

And vertical component of acceleration $a_y=770m/sec^2$

Mass of the ball m = 0.40 kg

So net acceleration $a=\sqrt{a_x^2+a_y^2}=\sqrt{760^2+770^2}=1081.896m/sec^2$

Now according to second law of motion

Force = mass × acceleration

So F = 0.40×1081.896 = 432.758 N

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3 years ago

A) what is the light source for a plant growing in the shade?

Ulleksa [173]

a.) Plants that thrive in the shade are often able to hold on to sunlight for extensive periods of time; they're in a sense like the camels of the plaNt WoRld.

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3 years ago

The center of mass of the system is the point at which the total mass of the system could be concentrated without changing the _

Sveta_85 [38]

The centre of mass of the system is the point at which the total

mass of system could be concentrated without changing the moment

of the system.

Centre of Mass is the point at which the whole mass of the system

is assumed to be concentrated.

The general formula for the COM is:

xₙ = Σmₐxₐ / Σmₐ where, a = 1,2,3.........n

Here the term Σ mₐ xₐ is called the first moment of the system and the

denominator expression is called total mass of the system.

Therefore, from this theory we can say that the moment of the system

remain unchanged while calculating the COM.

Hence, The centre of mass of the system is the point at which the total

mass of system could be concentrated without changing the moment

of the system.

learn more about centre of mass here:

brainly.com/question/3454419

#SPJ4

8 0

2 years ago