A vector is a quantity or phenomenon that has two independent properties: magnitude and direction.
Answer:
option A
Explanation:
given,
compression for lower setting = x
work done to compress in lower setting = 5 J
compression in higher setting, x' = 2 x
work done in higher setting = ?
Work done in compression of spring at lower setting

............(1)
Work done in compression of spring at higher setting




from equation (1)

W' = 20 J
Work take for the higher setting is equal to 20 J
Hence, the correct answer is option A
You use a force meter to measure newtons
Answer:
437 J
Explanation:
Parameters given:
Weight of child, W = 230 N
Height of swing, h = 1.9 m
Gravitational Potential Energy is given as:
P. E. = m*g*h = W*h
m = mass
h = height above the ground
W = weight
P. E. = 230 * 1.9
P. E. = 437 J
Hello Alexandra, A pure metal is a substance that contains atoms of only one type of metallic element.
-Happy Studies