Answer:
70 m/s.
Explanation:
because the vertical velocity component of 30 m/s was initial horizontal velocity of 40 m/s was maximum height.
Answer:
intensity is 8.9 x W/m²
power is 11.3 x W
Explanation:
Given data
distance = 20 light year
power output = 4.00 x 10^28
to find out
intensity of the starlight and the power of the starlight
solution
we know the intensity formula that is
intensity = power / area
so here power is 4.00 x 10^28 and area = 4π(20ly)²
intensity = 4.00 x 10^28 / (4π (20×9.46×10^15)²
intensity = 8.9 x
so intensity is 8.9 x W/m²
and
power is Intensity × Area
so power = 8.9 x × (π (6.37 × 10^6)²
power = 11.3 x
so power is 11.3 x W
The force between the planets will not change after doubling the masses of the planets and distance between them.
To find the answer, we need to know about the gravitational force of attraction.
<h3>What's the gravitational force attraction?</h3>
- According to Newton's gravitational law, the force between two objects is directly proportional to the product of their masses and inversely propertional to the square of the distance between them.
- Mathematically, Gravitational force= GMm/r². G is the gravitational constant.
<h3>What is the gravitational force between two planets when their masses and distance between them are doubled?</h3>
- Then masses are 2M and 2m. Distance is 2r.
- So gravitational force= G×2M×2m/(2r)²
= GMm/r²
Thus, we can conclude that the gravitational force will not change of the masses are doubled and the separation is also doubled between the planets.
Learn more about the gravitational force here:
brainly.com/question/72250
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Answer:
Motion definition: the action or process of moving or being moved.
Examples:
1. moving a hand
2. riding a bicycle
3. running
Answer:
The Moment of a force is a measure of its tendency to cause a body to rotate about a specific point or axis.