Answer:
pressure = force ie 500 N divided by area ie 0.05m².
p=f by a
p= 500n divided by 0.05 m²
p= 10,000 pascal
Answer:
The body is said to be in static equilibrium if the net force acting on a body at rest is zero.As the net force is zero,the body will not undergo motion.
Explanation:
Answer:
D. Electromagnetic Induction.
Explanation:
Answer:
option (c)
Explanation:
According to the newton's third law, for every action there is an equal and opposite reaction.
As the astronaut throw the tool away from the shuttle, it means the action force is in the direction away from the shuttle and according to Newton's third law, the reaction force is getting in the direction of shuttle.
Answer:
The moment of inertia will be increased by a factor of 1575
Explanation:
Let the moment of inertia of a wheel be given as;
where;
I is the moment of inertia of the wheel
m is mass of the wheel
r is radius of the wheel
when the mass is increased by a factor of 7 and the radius is increased by a factor of 15
![I_1 = \frac{1}{2}mr^2\\ \\I_2 = \frac{1}{2}(7m)(15r)^2\\\\I_2 = \frac{1}{2}(7m)(225r^2)\\\\I_2 = 7\times 225[\frac{1}{2}(mr^2)]\\\\I_2 = 1575[\frac{1}{2}(mr^2)]\\\\Recall, \frac{1}{2}(mr^2) = I_1 \\\\I_2 = 1575 I_1](https://tex.z-dn.net/?f=I_1%20%3D%20%5Cfrac%7B1%7D%7B2%7Dmr%5E2%5C%5C%20%5C%5CI_2%20%3D%20%5Cfrac%7B1%7D%7B2%7D%287m%29%2815r%29%5E2%5C%5C%5C%5CI_2%20%3D%20%20%5Cfrac%7B1%7D%7B2%7D%287m%29%28225r%5E2%29%5C%5C%5C%5CI_2%20%3D%207%5Ctimes%20225%5B%5Cfrac%7B1%7D%7B2%7D%28mr%5E2%29%5D%5C%5C%5C%5CI_2%20%3D%201575%5B%5Cfrac%7B1%7D%7B2%7D%28mr%5E2%29%5D%5C%5C%5C%5CRecall%2C%20%5Cfrac%7B1%7D%7B2%7D%28mr%5E2%29%20%3D%20I_1%20%5C%5C%5C%5CI_2%20%3D%201575%20I_1)
Thus, the moment of inertia will be increased by a factor of 1575
