Answer:
Answer is option b) 2.97m
Explanation:
With the relationship between the force exerted by the runner and the mass that it has, I can determine the acceleration it will have:
F= m × a ⇒ a= (650 kg ×(m/s^2)) / (70kg)= 9.286 (m/s^2)
With the acceleration that prints the force exerted and the time I can determine the distance traveled in the interval:
Distance= (1/2) × a × t^2 = (1/2) × 9.286 (m/s^2) × ((0.8s)^2)= 2.97m
Answer:
1. The bird close to the center
2. 4/25 of the original force.
Explanation:
1. Tangential velocity is v=w*d (in m/s), where w is the rotational speed, commonly denoted as the letter omega (in radians per second). d is the distance from the center of the rotating object to the position of where you would like to calculate the velocity (in meters).
As we can note, the furthest from the center we are calculating the velovity the higher it is, because the rotational velocity is not changing but the distance of the object with respect to the center is. If v=w*d, then the lower the d (distance) the lower the tangential velocity.
2. Take a look at the picture:
We have the basic equation for the gravitational force.
We have to forces: Fg1, which is the original force, and Fg2, the force when the mass and the distance changes.
If we consider that mass 2 didn't change (m2'=m2), mass 1 is four times its original (m1'=4*m1) and distance is 5 times the original (r'=5*r), then next step is just plugging it into the equation for Fg2.
Dividing the original force Fg1 by the new force Fg2 (notice you can just as well do the inverse, Fg2 divided by Fg1) gives us the relation between the forces, cancelling all the variables and being left only with a simple fraction!
Identifying the word that is described by each statements in the question is listed below:
- Evaporation
- Transpiration
- Hydrosphere
- Water Cycle
- Condensation
<h3>Meaning of Water </h3>
Water can be simply defined as any fluid or substance that is odurless, colorless and tasteless.
Water is a very important factor and substance that sustains life in humans and plants on earth.
Water tends to undergo different changes and processes in plant, animals and even as a substance on its own
In conclusion the above listed processes are all related to water.
Learn more about Water: brainly.com/question/1313076
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I think you forgot to include the acceleration due to
gravity of astronauts. I assume that it is = 0.170 g. To get the answer we have
to use the formula s = v0t – (1/2) At². Where s is the altitude, A is the
acceleration of gravity, t is the time after throwing.
v = v0 –At
v = 0 at max altitude so v0 – At = 0
t = v0/A at max altitude
Using the formula above for the altitude:
s = v0t – (1/2) At²
s = v0(v0/A) – (1/2) A (v0/A)²
s = v0²/A – (1/2) v0²/A
s = (1/2) v0²/A
The earth: E = (1/2) v0²/g
The moon: M = (1/2)v0²(0.17g)
So, take the ratio of M/E = g/0.17g = 1/0.17 = 588
M = 5.88 E
He can throw the wrench 5.88 times higher on the moon
<span>M =5.88 (10 m) = 58.8 meters that the can throw
the wrench a little over on the moon.</span>
