Answer:
Explanation: w= mgh
W= pressure * volume
Pressure= density *gravity *height
Pressure = 1000*9.8*6
Pressure= 58860N/m^2
Work = 58860*6
Work= 353160j
Work = 353.16kj
Answer:
0.21 lunar month
Explanation:
the radius of moon = r₁
time period of the moon = T₁ = 1 lunar month
The radius of the satellite = 0.35 r₁
Time period of satellite
The relation between time period and radius
now,
T₂ = 0.21 lunar month
hence, the time period of revolution of satellite is equal to 0.21 lunar month
Answer:
33°
Explanation:
We are given;
Speed at which both snowballs are thrown; v = 33.2 m/s
Angle at which snowballs are thrown with respect to the horizontal; θ = 57°
Now,we want to find out the angle at which the second snowball should be thrown in order to arrive at the same point as the first.
To calculate this angle, we will use complementary angle concept.
Now, because the target is in the same place, there will be two launch angles that will make the snow ball to be placed on the target.
The is calculated from;θ1 = 45° - (57° - 45°) = 33°
Choice-B is a good description of the newton
Answer:
2.14 s
Explanation:
The period is the time for 1 revolution. If it takes 21.4 seconds to make 10 revolutions, then it takes 2.14 seconds to make 1 revolution.
You can show this with a proportion:
t / 1 rev = 21.4 s / 10 rev
t = 2.14 s
