When referring to body composition we are talking about our leanness. Lean muscle burns ________

An actor has a mass of 70 kg. Gravitational field strength = 9.8 N/kg. Use the following equation to calculate the weight of the

GalinKa [24]

This is a way of measuring how much gravity there is. The formula is: weight/mass = gravitational field strength.

Gravitational field strength = Weight/mass unit is N/kg

Weight = mass x gravitational field strength unit is N

On Earth the gravitational field strength is 10 N/kg. Other planets have different gravitational field strengths. The Moon has a gravitational field strength of 1.6 N/kg. You might have seen films of astronauts leaping high on the moon.

Here on Earth, if I jump I am pulled back to ground by gravity. What is my weight? My mass is 80kg and if we multiply by gravitational field strength (10N/kg) - my weight is 800N. Now if I go to the moon, my mass will be the same, 80kg. We multiply that by the moon's gravitational field strength, which is 1.6 N/ kg. That means my weight on the moon is 128N. So I have different weights on the Earth and on the Moon. That's why astronauts can jump high into the air on the moon - they're lighter up there.

Jupiter is a very large planet with strong gravitational field strength of 25 N/ kg. My body is 80kg. If I go to Jupiter my weight is going to be 25 x 80 = 2,000 N. That means I wouldn't be able to get off the ground or stand up straight! I would probably be lying down all the time there. So weight varies depending on which planet you are on. You can find out more yourself by looking up tables of weight on different planets.

8 0

2 years ago

The velocity vector of an object with a centripetal acceleration is never tangent to the circular path.

Veseljchak [2.6K]

<em>The velocity vector of an object with a centripetal acceleration is never tangent to the circular path is False.</em>

Answer: <em>False</em>

Explanation:

Centripetal acceleration is a feature of objects in uniform circular motion. In that case velocity is along the tangent drawn to the circular path. For an object to be called accelerating its velocity should be variable but speed needn’t.

Even when the speed is constant an object can be accelerating. The direction of velocity of an object in uniform circular motion keeps changing continuously. This change in velocity in uniform circular motion is equal to the centripetal acceleration.

5 0

3 years ago

What are the different skills and strategies were you aware of in this situation that indicated to you that it would be appropri

const2013 [10]

Answer:

dad

Explanation:

daddy

4 0

2 years ago

According to the ideal gas law, increasing the volume of a closed reaction container decreases the thermal energy because the

viva [34]

B is ur answer the temputer does increase

4 0

3 years ago

Read 2 more answers

A car is going along a circular road at a constant speed. The radius of the curve is 242 m, and the car takes 1.3 minutes to com

Dvinal [7]

Answer:

$a_c=1.57\frac{m}{s^2}$

Explanation:

In order to find its centripetal acceleration we need to use the next equation:

$a_c=\frac{v^2}{r}$

So, we need to find its velocity in first place. Considering that the time T required for one complete revolution is called the period. For constant speed is given by:

$T=\frac{2\pi r}{v}$

Solving for v, considering that in this case T=1.3min=78s, and r=242

$v=\frac{2\pi *(242)}{78} =19.49398518m/s$

Finally, replacing v in the centripetal acceleration equation:

$a_c=\frac{(19.49398518)^{2} }{242}=1.570311811m/s^2$

6 0

3 years ago

When referring to body composition we are talking about our leanness. Lean muscle burns _________ calories than fat.