C. Sodium and chlorine. You react them to get sodium chloride
Answer:
Explanation:
It is a problem based on simple harmonic motion and friction . maximum friction possible between large block and mass m is µ mg . During SHM , maximum acceleration is ω² A and force is mω² A .
friction must exceed it so that mass m may not slip over it during motion . so
µ mg ≥ mω² A
µ ≥ mω² A / mg
smallest value of µ
= mω² A / mg
= ω² A /g
The answer is A.
During the process, the only force imposed on the small weight is gravity.
The time from launching to the highest is the same as the time from the highest to the ground. And the vertical velocity at 0 m/s is at the highest position.
Yes very very fast needs to be on time
Answer:
F = F2 - F1 where F is the net force upwards
F = 5 - (.5 * 9.8) = (5 - 4.9) N = .1 N
Since there is a net force in the upwards direction the rocket should experience an upwards acceleration.
