Answer:
Assume that the ball undergoes motion along a straight line. ... F = m A Force = (mass) x (acceleration) The question tells you the mass and the acceleration. All YOU have to do is take the numbers and pluggum into Newton's 2nd law. F = m A = (0.75 kg) (25 m/s²) = (0.75 x 25) kg-m/s² = 18.75 Newtons .
Explanation:
i looked it up ok
Answer:
Explanation:
Given
mass of each car
acceleration of train
Force required to pull this system
For first car
for second car
this form a pattern of the form
for (a)30 th and 31 st car tension
For 49 th and 50 th car
The answer is B. Force=mass X accleration
Fossil fuels are things such as natural gas, petroleum, and coal and they are made from dead organisms containing organic molecules that release energy deep in the ground they are not renewable
The speed of satellite or orbital speed is given by below formula.
V = sqrt (GM/R)
where
G = is the gravitational force
M = earth's mass
R = radius of its orbit.
Solving for the Orbital Speed,
First add the earth's radius to the height of satellite wrt to the earths surface, we have R = 6.59x10^6 m + 4.8 x 10 6 m = 11.39x10^6
Now
V = sqrt ((6.673 x 10-11*5.98x1024 kg)/11.39) =5919 m/s