Answer:
8.72*
N
Explanation:
force of attraction f = G m1m2/ r^2 = 
= 8.72* N
Answer:
A)
B) 
Explanation:
Using the free body diagram and according to Newton's first law, we have:
A) Solving (1) for T:
B) Solving (2) for F:
Answer:
5N westward, acting on the student
Explanation:
The correct statement about nuclear fusion is the last one: "it produces nearly all the elements that are heavier than helium". Nuclear fusion is the process of combination of two smaller atoms into a larger one. It requires a high activation energy, which is reached in the stars. Elements from He to Iron were formed in the Sun, but larger elements require a higher energy and are formed inside supernovas.
Assuming the object is on earth the objects weight would be equal to its mass multiplied by the gravitational field constant
mass=22kg
g=9.80665N/kg
weight=(22 kg) (9.80665 N/kg)=215.7463N
generally g is rounded to be 10 N/kg so for any question where it asks the weight given the mass just multiply by 10 and that should suffice. In this case the answer would be 220 N
