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4 years ago

5

What is the difference between “exercise” and “physical activity”?

1 answer:

Aleksandr-060686 [28]4 years ago

4 0

Physical activity is movement that is carried out by the skeletal muscles that requires energy. In other words, any movement one does is actually physical activity. Exercise, however, is planned, structured, repetitive and intentional movement intended to improve or maintain physical fitness.

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Please help!! I will award 25 points!!

USPshnik [31]

Answer: 115m. Displacement can be taken from the distance between the initial point and the final point. In this case,the displacement is 115m.

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3 years ago

Phil is riding a scooter and pushes off the ground with his foot. this causes him to accelerate at 12 m /s. Phil weighs 600 N. h

Dvinal [7]

Answer:

734.16 kg m/ $s^{2}$

Explanation:

The problem is asking for the Force of pushing off the ground.

The formula of Force is: F = mass x acceleration

Given = <em>Mass</em>: 600 newtons (N)

<em>Acceleration</em>: 12 m/ $s^{2}$

We have to convert the mass into kg first. Remember that <u>1 kg is equal to 9.80665 newtons.</u>

Let x be the<em> mass in newtons</em>.

Let's convert: $\frac{1 kg}{9.80665 N}$ x $\frac{x}{600 N}$ = $\frac{600}{9.80665}$ = 61.18 kg

Phil's weight is 61.18 kg

Let's go back to finding the force.

F = m x a

F = 61.18 kg x 12 m/ $s^{2}$

F = 734.16 kg m/ $s^{2}$

7 0

3 years ago

Particles in a medium through which a sound wave is traveling

GuDViN [60]

Answer:

EL SONIDO PUEDE VIAJAR POR CUALQUIER MEDIO MATERIAL, COMO

AIRE, NITRÓGENO, AGUA, TITANIO, ETC... ASÍ QUE EL

SONIDO VIAJA A TRAVÉS DE MOLÉCULAS.

Explanation:

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3 years ago

What is the wavelength of a wave?

PIT_PIT [208]

I know for a fact the answer is D. the distance traveled by the wave during one full cycle

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3 years ago

Read 2 more answers

Nicholas spends 20 minutes ironing shirts with his 1,800-watt iron. How many joules of energy were used

ivanzaharov [21]

Multiply the power (1,800 watts) by time (1,200 seconds) to get 2,160,000 joules (or 2.16 MJ)

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3 years ago