The movement of the planets and other celestial bodies in the solar system is actually caused by the sun's gravitational pull or force.
Just like the moon orbits the earth because of the gravitational pull by the earth so does gravitational pull by the sun causes planets' and other celestial bodies' orbit.
Intensity = power/ Area
⇒ Power absorbed = 1× A ⇒ 1.4 × 10∧3 ×(10)
= 14000 Watt = 14 kWatt
time - averaged intensity divided by speed of light in free space is the radiation pressure
P = (1.4 × 1000)/c
Force = pressure × area ⇒ ((1.4× 1000)/(10∧8)) × 10
= 0.00004666666N
0.000047N
Answer:
It is a low pressure system.
Explanation:
The wind is blown into these low pressure areas due to it being thin. The air then rises causing condensation.
The change in velocity is 2m/s
Given ,
mass of baseball m = 0.5kg
force on baseball F = 10 N
Duration .i.e. time t = 0.1s
To find here change in velocity =?
Solution,
The impulse(J) of an object is equal to,
J = F× T
Where J is the impulse of the baseball and F is force on baseball at time t.
The impulse is equal to the change in momentum of the baseball and its unit is (N.s) Newton -second. it is a vector quantity therefore the dimension is [LMT⁻¹]. Then the impulse j is given as ,
J = m(v-u)
Here J is impulse ,m is mass, (v-u) is change in velocity .From equating the both impulse equations then can be write as,
m(v-u) = F× t
(v -u) =( F × t)/m
(v -u) = (10N× 0.1 s)/0.5k
(v -u) = 2m/s
Hence the change in velocity (v -u) of baseball is 2m/s.
- A 0.5kg baseball experiences a 10n force for a duration of 0.1s. what is the change in velocity of the baseball ?
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They both have exactly the same acceleration.