Answer:
The angular velocity of the first object is twice times the angular velocity of the second object.
Explanation:
The expression for the rotational kinetic energy for first object is as follows;
........ (1)
Here, I is the moment of inertia, K is the rotational kinetic energy and is the angular velocity.
The rotational kinetic energy for second object is as follows;
According to given condition, two objects have the same rotational kinetic energy. Object one has twice the moment of inertia than the second.
Suppose, I'=2I.
......... (2)
From (1) and (2),
Therefore, the angular velocity of the first object is twice the angular velocity of the second object.
45N
The normal is perpendicular to the forces that go up or down the slope. The downward force is just the weight .
A person would be driving 4 blocks west from the starting point to make the shorter distance while maintaining same displacement.
<u>Explanation:</u>
The measurement of an object’s position change from its point is called displacement. It is usually calculated from starting to the end points and represented by ‘delta s’. In the given scenarios, the person drove in the way that he finals the driving by 4 blocks away from the west.
Means, the persons drive to 8 blocks north and then to 8 blocks south get cancelled. Hence, to make the shorter distance with maintaining same displacement he would be driving 4 blocks west from the starting point.
Answer:
3.75 seconds
Explanation:
Given:
y₀ = 2.00 m
y = 0 m
v₀ᵧ = 20.0 sin 60.0°
aᵧ = -9.8 m/s²
Find: t
y = y₀ + v₀ᵧ t + ½ aᵧ t²
0 = 2.00 + (20.0 sin 60.0°) t + ½ (-9.8) t²
0 = 2 + 10√3 t − 4.9 t²
Solve with quadratic method:
t = [ -10√3 ± √(300 − 4(-4.9)(2)) ] / -9.8
t = (-10√3 ± √378.4) / -9.8
t ≈ -0.218, 3.75
Since t > 0, the ball lands after approximately 3.75 seconds.
Answer:
See below ~
Explanation:
A decrease in the ice caps causes a(n) increase in the absorption of sunlight. This cause the global temperature to rise causing more ice caps to melt. As more ice caps melt, the temperature rises. This is an example of a negative feedback loop.