Show with proof, the planet which an astronaut would have a greater weight if Planet A has twice the mass and twice the radius o
1 answer:
Answer:
First let's look at the gravitational formula by newton:
Now the f and g should be capital but that's not possible with the equation system. But we can see that the force the astronaut is pulled at is dependent on the mass and the distance if we assume his mass stays the same (mass and weight aren't the same also g is a constant). If a planet has twice the radius the force will by four times as weak because of the ^2. This is not compensated by the twice as big mass. Therefore the astronaut will have a higher force and thus a higher weight on planet B
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1.6km = 1 mike? Wow that guy is tall.
I think you meant 1.6 km = 1 mile? Okay then if we're going 12 meters per second how much would you travel in one hour? First we need to figure out how many seconds are in an hour. There are 60 seconds in a minute and 60 minutes in an hour so:
60×60=3600 seconds in an hour
Now we will multiply that by 12 meters per second and we get:
And 43200 meters is 43.2 km (1000 meters in 1 kilometer) meaning 43.2 kilometers an hour. Since there are 1.6 km in one mile we must divide 43.2km to 1.6.
And so your speed is 27 miles per hour.
Answer:
The current is
Explanation:
From the question we are told that
The radius is
The current density is
The distance we are considering is
Generally current density is mathematically represented as
Where A is the cross-sectional area represented as
=>
=>
Now the change in current per unit length is mathematically evaluated as
Now to obtain the current (in A) through the inner section of the wire from the center to r = 0.5R we integrate dI from the 0 (center) to point 0.5R as follows
substituting values