Forces are vectors. They cancel each other when in opposite directions. Use the equation F=GMm/r^2 and find the difference between the two forces since they are directly opposing each other.
Answer:
0.002 m or 2 mm
Explanation:
Given that:
Force, F = 50N
Area = 1 * 10^-5
Length, L = 10m
Shear modulus, = 2.5 * 10^10
Using the relation ;
D = (50 ÷ 1*10^-5) ÷ (2.5 * 10^10 ÷ 10)
D = 5000000 ÷ 2.5 * 10^9
D = 5 * 10^6 ÷ 2.5 * 10^9
D = (5/2.5) * 10^(6-9)
D = 2 * 10^-3
D = 0.002 m
1m = 1000 mm
0.002m = (1000 * 0.002) = 2 mm
Answer:
16 s
Explanation:
The frequency of a wave is the number of oscillations of the wave per second. It is given by:

where
v is the wave speed
is the wavelength
For the wave in this problem we have
v = 25 m/s

So the frequency is

The period of a wave is the time taken for one complete oscillation, and it is equal to the reciprocal of the frequency:

So the period of this wave is:
