How much work is done when a 48-kg stack of books are lifted 2m with a net force of 25 n ?
a. 12.4 j
b. 100 j
c. 50 j
d. 96 j

C). W = 50 J

Explanation:

As we know that the work done is the product of force and displacement

so here it is given that the net force on the stack of books is 25 N

also the displacement of the stack of books is 2m as it is lifted upwards

so we have

now by the formula of work done we know

now plug in all values in it

low freq = 100 mhz

low wavelength =101.7m

length = 3x10^8/freq

d eras and periods