Answer:
Explanation:
The equation 
represents the force needed.
Plugging in 
and 
, we find that the force needed to accelerate a 250 kg object at a rate of 
to be 
.
The formula for gravitational force is:
F = G m1 m2 / r^2
where G m1 m2 are constants, therefore:
F r^2 = constant
Part b. Given F1 = 2000 N, r1 = 100 km
Find F2 = ?, r2 = 150 km
(2000 N) * (100 km)^2 = F2 * (150 km)^2
F2 = 888.89 N
Part c. Given F1 = 2000 N, r1 = 100 km
Find F2 = ?, r2 = 50 km
(2000 N) * (100 km)^2 = F2 * (50 km)^2
F2 = 8000 N
Answer:
Fusion of Hydrogen to form Helium
Explanation:
The sun is a big ball of gas and it provides solar energy that drives external processes on the earth surface.
The pressure and temperature within the sun provides energy to fuse abundant hydrogen atoms together to form helium atoms. This nuclear fusion process releases a huge amount of energy.
The fusion of hydrogen atoms to form helium is the source of radioactivity in the sun.
Answer:
F = 17270 [N]
Explanation:
To solve this problem we must use Newton's second law, which tells us that the sum of forces on a body is equal to the product of mass by the acceleration.
ΣF = m*a
where:
F = force [N]
m = mass = 3454 [kg]
a = acceleration = 5[m/s^2]
Now replacing:
F = 3454*5
F = 17270 [N]
Proton - positive
Electron - negative
Neutron - neutral
