Answer: a= ff+fh/m
Explanation: bc khan academy said it was d. a=ff +fh/m
Answer:
The value of 60.2 mg in to g is 0.0602.
Explanation:
We need to calculate the 60.2 mg in to gram.
Conversion mg to g :
1 g = 1000 mg
Using this conversion,
So,
Hence, The value of 60.2 mg in to g is 0.0602.
Answer:
995 N
Explanation:
Weight of surface, w= 4000N
Gravitational constant, g, is taken as 9.81 hence mass, m of surface is W/g where W is weight of surface
m= 4000/9.81= 407.7472
Using radius of orbit of 6371km
The force of gravity of satellite in its orbit,
Where and
F= 995.01142 then rounded off
F=995N
Answer:
(a) 5.25 second
(b) 27.5625 rad
Explanation:
fo = 1.003 x 10^2 rev / min = 1.672 rev / sec
ωo = 2 x 3.14 x fo = 2 x 3.14 x 1.672 = 10.5 rad/s
α = - 2 rad/s^2
(a) Let t be the time taken to stop.
ω = 0 rad/s
Use first equation of motion for rotational motion
ω = ωo + α t
0 = 10.5 - 2 x t
t = 5.25 second
(b) Let it rotates by an angle θ in the given time.
use third equation of motion for rotational motion
ω² = ωo² + 2 α θ
0 = 10.5 x 10.5 - 2 x 2 x θ
θ = 27.5625 rad
Answer:
Gravity is a constant quantity
Explanation: