Awnser A. The orbits of the planets are
The correct answer to the question is : C)The problem is asking to solve for work; W = F × d
EXPLANATION:
As per the question, the distance covered by the object d = 29 m.
The force that acts on the object is F = 289 N.
We are asked to choose the correct equation for work done.
Work is said to be done on a body or by a body if the applied force has a component along the direction of displacement.
Mathematically work done W = force × displacement
= F × d
As per the question, we are given distance covered and applied force.
Hence, the correct equation for calculating work done by the object is equation C.
Answer: D
Explanation: Gaseous composition, larger size and many moons
Answer:
Newton's First Law states that an object will remain at rest or in uniform motion in a straight line unless acted upon by an external force.
Explanation:
Answer:
The rotational kinetic energy of the rotating wheel is 529.09 J
Explanation:
Given;
moment of inertia I = 0.35kg⋅m²
number of revolutions = 35.0
time of revolution, t = 4.00 s
Angular speed (in revolution per second), ω = 35/4 = 8.75 rev/s
Angular speed (in radian per second), ω = 8.75 rev/s x 2π = 54.985 rad/s
Rotational kinetic energy, K = ¹/₂Iω²
Rotational kinetic energy, K = ¹/₂ x 0.35 x (54.985)²
Rotational kinetic energy, K = 529.09 J
Therefore, the rotational kinetic energy of the rotating wheel is 529.09 J
