Answer:
<em>a) 37.5N</em>
<em>b) 9.375Joules</em>
Explanation:
a) According to Hooke's law
F = ke
k is the spring constant
e is the extension;
F = 150 * 0.25
F = 37.5N
b) Work done on the spring = 1/2ke^2
Work done on the spring = 1/2 * 150 * 0.25^2
Work done on the spring = 75 * 0.0625
Work done on the spring = 9.375Joules
The formula for finding the frequency of a wave is with the following formula:
F = 1/T, F being the variable for frequency and T substituting as time. Given we already have our time, let's plug it in for T.
F = 1/4. This means our answer is in some mathematical form that is equivalent to 1/4. We have the answer "0.25 waves/second", which is equivalent to our original fraction (0.25 x 4 = 1.00).
I hope this helps!
Answer:
Is the force on the object a push or pull force?
leaning against a wall
push
kicking a football
push
carrying a suitcase
pull
pressing the button for an elevator
push
opening a sliding door
pull
Explanation: