Answer:
false, they are more reliable.
Explanation:
i had to do it last year.
Answer:
B is excellent answer..............
Answer:
3.18 Nm
Explanation:
Given that:
Radius (r) = 15cm = 15/100 = 0.15m
θ = 45°
Applied force (F) = 30 N
The Torque can be obtained using the relation :
T = rF * sinθ
T = 0.15 * 30 * sin(45)
T = 0.15 * 30 * 0.7071067
T = 3.18198015
T = 3.18 Nm
Answer:
D.) will not move unless acted on by another force
Explanation:
This is well-explained by Newton's first law, also called "Law of inertia", which states that:
"an object in state of rest (or in state of motion with constant speed) will remain at rest (or will continue moving with constant speed) unless acted upon an unbalanced force".
In the situation described in the problem, we have a bowling ball at rest on the table. The ball is acted upon two balanced forces: the force of gravity, downward, and the normal reaction of the table, upward. According to the First Newton Law that we mentioned above, the ball will remain in its state of rest unless it will be acted upon another unbalanced force that can accelerate it.
Weight is always (mass) times (gravity in the place where you are).
On Earth, acceleration due to gravity is 9.8 m/s² ,
so the person's weight is
(80 kg) x (9.8 m/s²) = 784 newtons .
(about 176.4 pounds)