Explain how forces affect the motion of the planets
2 answers:
Answer:
The Two Forces That Keep the Planets in Motion Around the Sun
Gravity. Gravity is the primary force that controls the orbit of the planets around the sun.
Inertia. The physical law that states that objects in motion have a tendency to remain in motion.
Gravity Working with Inertia.
Explanation:
There are more but these are the necessary ones. Thanks have a phenomenal night! <33
Any moving object in space will travel in a straight line at the same speed forever, planets included. The planets would be moving in straight lines, but the sun's gravity pulls them toward it. The force of gravity causes the moving planets to travel in roughly circular orbits around the sun.
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Density = (mass) / (volume) Volume = (mass) / (density)
Answer:
The correct option is (b).
Explanation:
Given that,
Electric field,
We need to find the magnitude of the force on the electron as a result of the electric field.
We know that, the electric force is given by :
So, the required force on the electron is equal to .
Work done against gravity to climb upwards is always stored in the form of gravitational potential energy
so we can say
here h = vertical height raised
so here we know that
here we have
now from above equation
so work done will be given by above value
Answer:
3.0 x10^-3 J
Explanation:
The potential energy of a spring is given by PE = (0.5)k*x^2
Where
K: Spring Constant = 60 N/m
x: displacement of the spring from its equilibrium position = 1cm = 0.01m
Then PE = 0.5(60)(.01)^2 = 0.003J = 3.0 x10^-3 J
Power = (work or energy) / (time)
100 W = (energy) / (20 sec)
Energy = 2,000 watt-sec
<em>Energy = 2,000 J </em>
