technically usually the warmer object/substances particles move master which causes friction among the particles plus the kinetic energy being converted to thermal energy, so i would say the hand.
Explanation:
Given that the first ball is thrown vertically and upward.
since it reaches the throwers hand after 3 seconds, then the time taken to reach maximum height is
= T/2
=3/2
=1.5 seconds
Also, the projection angle for the second ball is 30°
we know that at maximum height vertical velocity is 0
therefore the final velocity of the first ball is
Vy= 0
Also, since the first ball is thrown upward the horizontal velocity is 0
Vx=0
from the first law of motion
Vy=u+at
Vy=0, a= -g
Uy=gt
Uy=9.81*1.5
Uy=14.7m/s
since both reach the same height, they will have the same vertical velocity
Uy= Vo sin∅
Vo=Uy/sin∅
Vo= 14.7/sin 30
Vo=29.4m/s
Answer:
a kind of radiation including visible light, radio waves, gamma rays, and X-rays, in which electric and magnetic fields vary simultaneously
Answer:
Total revenue at the given price is 50625.
Explanation:
Price p = 45 - 0.01q
Revenue = Demand × Price
First derivative of R(q)
= 45 - 0.02q
45 - 0.02q = 0
-0.02q = -45
q = 2250
Second derivative of R(q)
= 0 - 0.02
= - 0.02
Since the second derivative is -ve it can be said that the revenue function has a maximum at q = 2250
The quantity that maximizes the revenue = 2250 items
Price of each item = 45 - 0.01 × 2250
= 45 - 22.50
Price of each item is 22.5
= 101250 - 50625
= 50625
Total revenue is 50625.
Answer:
F = ma - with this you will get 2.6 m/s^2
Explanation:
Use this formula to get the acceleration...
where F is force, M is mass and A is acceleration
by using this we get...
65 = 25 * a
so, a = 65/25
Therefore, the acceleration is 2.6 m/s^2
Hope that helped :)