Answer:
ω₁ = 8 rad/s
Explanation:
Assuming
1) the clay sticks to the disc we can apply conservation of angular momentum
2) That the disc moment of inertia is 1.5 kg•m²
Initial angular momentum = L = I₀ω₀ = 1.5(14) = 21 kg•m²/s
After the clay joins the party, the moment of inertia is
I₁ = 1.5 + 0.5(1.5²) = 2.625 kg•m²
21 = 2.625ω₁
ω₁ = 8 rad/s
Answer:
Work done=Fxd
Explanation:
Work done is force multiplied by distance by moved in the direction of the force. The work done is measured in joules
Theories develop over time as new Scientific evidence is discovered.
A law is what happens, a theory trys to explain why it happens. For example there is a gravitational force (law), the theroy of relitivity trys to explain why. it says that gravity is a warpiture in space and time created by all matter in the univerese.
ᶦ ʷʳᵒᵗᵉ ᵃˡˡ ᵗʰᵃᵗ^
hope it helped.Answer:
Answer:
It is possible by increasing the speed of the tennis ball by a factor of (Mass of the tennis ball)/(Mass of the basketball)
Explanation:
The momentum of a body = The bod's mass × The body's velocity
Therefore, the momentum of a given mass of an object, such as a tennis ball can be increased by increasing the velocity or speed of the object. Whereby the speed of the ball, v₁, is increased such that the momentum of the basketball and the tennis ball will be the same, is given by the following equation
Mass of the basketball × v₂ = Mass of the tennis ball × v₁
Therefore, v₁/v₂ = (Mass of the tennis ball)/(Mass of the basketball)
Answer:
Explanation:
The degree of hotness and coldness of the body is called temperature.