Answer:
Explanation:
We are given that
Initial velocity of baseball=u=-41m/s
Because final and initial velocity are in opposite direction
Final velocity of baseball=v=47m/s
Time=t=1.9 ms=
1 ms=
We have to find the acceleration .
We know that
Acceleration=
Using the formula
Acceleration=
Acceleration=
Density is mass per unit volume
remember
p= m/v where v is vol, m is mass and p is density
Answer:
substances have different melting and boiling points to one another.
Explanation:
The answer is C. Convection.
Radiation is the transfer of energy through electromagnetic waves. Conduction, on the other hand, is energy transfer through solid material. Condensation occurs when warm gas makes contact with a cold surface or environment, which causes a change in state from gas to liquid. These definitions rule out choices A, B, and D.
Convection is movement of particles in fluid or gas. As liquid/gas heats up, it becomes less dense and rises, moving away from the heat source. When it rises, it eventually cools down and sinks again. It is warmed up again and the cycle continues. This is why there is a circular motion when convection occurs.
Well, it depends. Your latitude on Earth--that is, how close you are to the equator--and the time of year make a difference. I'll explain why. Your motion is made up of four pieces: the rotation of the Earth on its axis, the motion of the Earth around the Sun, the Sun's orbit about the center of the galaxy, and the motion of the whole galaxy.
