Gas pressure in a closed system is caused by resultant force of all combines collisions. The correct option among all the options that are given in the question is the third option or option "C". The other options can easily be ignored. I hope the answer comes to your help.
Answer:
1/4
Explanation:
The period of a simple pendulum is:
T = 2π √(L/g)
At half the period:
T/2
= π √(L/g)
= 2π √(L/(4g))
= 2π √((L/4)/g)
So the length would have to be shortened by a factor of 1/4.
Answer:
Product labels are important for explaining to consumers what they are buying. This can be a safety issue if customers have allergies or health concerns.
Explanation:
Answer:
V = 5.96 m/s
Explanation:
First we find the force required to move the car up the inclined plane. This force shall be equal to the component of the weight of the car that is parallel to the inclined plane. Hence,
F = W Sin θ
F = mg Sin θ
where,
F = Force = ?
m = mass of car = 1600 kg
g = 9.8 m/s²
θ = Inclination Angle = 20°
Therefore,
F = (1600 kg)(9.8 m/s²) Sin 20°
F = 5362.87 N
Now, we use power formula:
P = FV
V = P/F
where,
P = Engine Power = 32000 W
V = Maximum Velocity of Car = ?
Therefore,
V = 32000 W/5362.87 N
<u>V = 5.96 m/s</u>
Explanation:
Remember that power is defined as how much Work is done per unit of time.
Work is defined as the amount of force applied across a certain distance.
Since in both cases of climbing the ladder (on Earth and the moon), Luke coveres the same amount of <em>distance </em>in the same amount of <em>time</em>, we are only left with one difference between the two cases - gravity.
If you were to carry your backpack on the moon with the same load of text books, it would take less force to pick it up on the moon. Therefore, Luke expends less effort on the environment with less gravity - the moon.
To find the difference factor - you would want to divid the gravitational contants between earth and the moon.
