Answer:
Explanation:
Given
Mass = m
Time = t
Force = mass × acceleration ..... 1
Where acceleration = velocity/time
Ave Force = m×∆v/∆t
= mv/t
Answer:
4750000 J
Explanation:
Kinetic Energy= 1/2* mass* velocity²
1/2*950*100²=4750000
The wavelength of the laser beam in the liquid is 517 nm
Brainliest?
Answer:
decrease
Explanation:
Rate of production of heat = 100 J/s
Rate of heat flowing out = 200 J/s
As the rate of flowing heat is more than the rate of generating heat so the temperature of body will decrease.
Answer:
Explanation:
Let the force applied by her be T on the rope . This force will create tension in the rope. It will act in upper direction on the crates . The weight of the crate will act in downward direction .
Net force on the crate = mg - T in downward direction
Applying Newton's law
mg - T = m a
a =0 ( speed is steady )
mg - T = 0
T = mg
= 25 x 9.8
= 245 N
Force to be applied by her
= 245 N