What would the weight of an astronaut be on Saturn if his mass is 68 kg and acceleration of gravity on Saturn is 10.44 m/s2? Please explain.

Answers

Answer 1

Answer:
Here's the part you need to know:

   (Weight of anything) =

   (the thing's mass)
times
       (acceleration of gravity in the place where the thing is) .

   Weight = (mass ) x (gravity) .

That's always true everywhere.
You should memorize it.

For the astronaut on Saturn . . .

   Weight = (mass ) x (gravity) .

   Weight = (68 kg) x (10.44 m/s²)

   = 709.92 newtons .
__________________________________

On Earth, gravity is only 9.8 m/s².
So as long as the astronaut is on Earth, his weight is only

   (68 kg) x (9.8 m/s²)

   = 666.4 newtons .

Notice that his mass is his mass ... it doesn't change
no matter where he goes.

But his weight changes in different places, because
it depends on the gravity in each place.

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A skateboarder traveling at 4.45 m/s can be stopped by a strong force in 1.82 s and by a weak force in 5.34 s.The mass of the skateboarder and the skateboard is 53.6 kg.

What is the impulse on the skateboarder?
What is the average force on the skateboarder in each of these stops?

Answers

1) Impulse: $-238.5 kg m/s$

2) Strong force: -131.1 N, weak force: -44.7 N

Explanation:

The impulse exerted on an object is equal to the change in momentum of the object itself.

Mathematically:

$I=\Delta p=m(v-u)$

where

m is the mass of the object

u is the initial velocity

v is the final velocity

For the skateboarder in this problem, we have:

m = 53.6 kg

u = 4.45 m/s

v = 0 (it comes to a stop)

Therefore, the impulse is

$I=(53.6)(0-4.45)=-238.5 kg m/s$

Where the negative sign indicates that the direction is opposite to the motion of the object.

The impulse is also equal to the product between the force applied and the duration of the collision:

$I=F\Delta t$

where

I is the impulse

F is the average force

$\Delta t$ is the time during which the force is applied

The strong force is applied in a time of

$\Delta t = 1.82 s$

Therefore this force is

$F=(I)/(\Delta t)=(-238.5)/(1.82)=-131.1 N$

The weak force is applied in a time of

$\Delta t = 5.34 s$

So this force is

$F=(I)/(\Delta t)=(-238.5)/(5.34)=-44.7 N$

Learn more about impulse:

brainly.com/question/9484203

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Answers

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Answer:

Explanation:

The sun's apparent motion across the sky from East to West daily is due to the A) rotation of the sun. B) rotation of the earth. C) orbit of the earth around the sun. D) orbit of the sun around the earth.

Answers

B)rotation of earth because we rotate around the sun so when your area faces away from the sun it looks like the sun is setting in your point of view.

B) rotation of the earth.

The sun is relatively fixed. It is the rotation of the Earth that makes it appear as if the Sun is moving from East to West.

Warm blooded or cold blooded Animals are warm when their surroundings are warm and cool when their surroundings

Answers

Your answer should be Cold Blooded Animals. Cold blooded animals don't have control over their own body temperature like humans or mammals do, most times cold blooded animals are reptiles, amphibians, etc. so they have to lay on rocks or someplace in the sunlight to warm up and have to go to water or shady areas to cool off. Hope this helps! =^-^=

Cold blooded animals

What is the correct term for the measurement of the geographic distribution of species?

Answers

Biogeography is the correct term that can be used to measure the geographic distribution of the species. It is the study of the distribution of the species in a particular geographical location and in a particular geological time. The distribution of the organisms may vary due to geographical gradients such as elevation, latitudes, and habitat area. Phytogeography is a sub -branch of biogeography which deals with the distribution of the plants in a particular location. Zoogeography is the sub-branch of the distribution of the animals in a particular location.

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If potential energy is at point A is 12 joules, what is the potential energy at B ?

Answers

Answer:

incomplete information

Explanation:

Where is diagram? no point A and point B given

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