The evil team of Ms. Moonstruck and Mr. Luny intend to deflect the Moon from its orbit around Earth by pulling it with a force o
1 answer:
Answer:
m2=32023kg
Explanation:
Hello!
To solve this problem you should know Isaac Newton found an equation that determines the force of attraction between two bodies with mass acting in a gravitational field, at a distance r, the equation is as follows
where
G = It is the unirvesal gravitational constant= 6.67x10^-11 Nm^2/kg^2
m1=mass of the moon=7.36×10^22 kg
m2= mass of the mini black hole
r=distance=6.83×10^6 m
F=force=3370N
solving for m
m2=32023kg
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Answer:
D. 48.985 N
Explanation:
Newton's second law states that:
which means that the net force acting on an object is equal to the product between the object's mass and its acceleration.
The equation of the forces for the briefcase in the elevator therefore is given by:
where
N is the normal reaction exerted on the briefcase
(mg) is the weight of the briefcase, with
m = 4.5 kg being its mass
g = 9.8 m/s^2 is the acceleration of gravity
a = 1.10 m/s^2 is the acceleration
Here we chose upward as positive direction.
Solving for N, we find the normal force:
So the closest answer is
D. 48.985 N