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3 years ago

13

List 3 differences between aerobic and anaerobic exercise.

1 answer:

brilliants [131]3 years ago

6 0

Aerobic means “with air.” So things like yoga, stretching, or soft walking would be aerobic. Anaerobic means “without air.” Running up some stairs, sprinting, or lifting weights causes you to loose air quickly, making them anaerobic.

Hope that helps!

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A child’s toy sits on the bottom of a swimming pool in which the water depth is d=1.8 m. To a child standing at the pool edge, t

navik [9.2K]

Answer:

Horizontal distance is 1.28 + 2.04 = 3.32 m

Explanation:

Given data:

from below figure

Applying Pythagoras theorem

from Snell's law

$\frac{sin i}{sin r} = \frac{n_2}{n_1} = \frac{\frac{EF}{AB}}{\frac{DE}{BD}}$

$1.33 =\frac{ \frac{2.04}{\sqrt{(3.5 -1.8)^2 + 2.04^2}}}{\frac{x}{\sqrt{1.8^2 + x^2}}}$

solving for x we have

$x^2 = 1.626$

x = 1.28

Horizontal distance is 1.28 + 2.04 = 3.32 m

8 0

3 years ago

A 20 kg cart moving at 4 m/s has how much momentum?

masha68 [24]

Answer:

We conclude that the required momentum is 80 kgm/s.

Explanation:

Given

Mass m = 20 kg

Velocity v = 4 m/s

To determine

The momentum p = ?

Important Tip:

The momentum of an object is the product of mass and velocity.

We can determine the momentum using the formula

$p = mv$

where

p is the momentum

m is the mass

v is the velocity

now substituting m = 20 and v = 4 using the equation

$p = mv$

$p = (20) (4)$

$p = 80$ kg m/s

Therefore, we conclude that the required momentum is 80 kgm/s.

6 0

3 years ago

Once a player catches the Frisbee they are only allowed to pivot like in

Natasha_Volkova [10]

True I know from pe hahahahha

5 0

3 years ago

Read 2 more answers

Why is sunlight is considered a renewable resource? It is used for energy. It is found in nature. It is abundant. It is helpful

Svetlanka [38]

Sunlight is solar energy. It is considered a renewable resource because it can be used repeatedly and replaced naturally.

6 0

4 years ago

Read 2 more answers

A 23.0 kg child is riding a playground merry-go-round that is rotating at 30.0 rpm. What centripetal force, in N, must she exert

sammy [17]

Answer:

The value is $F = 454 \ N$

Explanation:

From the question we are told that

The mass of the child is $m = 23.0 \ kg$

The angular velocity is $w = 30 \ rpm = \frac{2 \pi * 30 }{60} = 3.142 \ rad/s$

The distance from the center is $r = 2.0 \ m$

Generally the centripetal force is mathematically represented as

$F = m * w^2 * r$

=> $F = 23 * 3.142 ^2 * 2$

=> $F = 454 \ N$

5 0

3 years ago