The required force to push the box straight up at a constant speed is zero.
<h3>Net force on the box at constant speed</h3>
The net force on the box is calculated by applying Newton's second law of motion as follows;
∑F = 0
F - Ff = ma
<em>(at constant speed, acceleration is zero)</em>
Thus, the required force to push the box straight up at a constant speed is zero.
Learn more about net force here: brainly.com/question/14408327
Guessing (A) because it had the highest velocity number on the graph and it matched 1s
Answer:
Since formula for current is
I = Q/t
or
Current = Charge / Time
to increase current, the charge must be increased per unit time.
Answer:
The frequency of infrared light of 1.0 x is 3 THz
Explanation:
Given
The wavelength (λ) of Infrared light = 1.0 x
To find:
Frequency (ν) of the infrared light
We know that the wavelength and frequency are inversely proportionaly, which derives an equation:
c = νλ
c is velocity of light = 3 x m
Hence Frequency (ν) of the infrared light is given by
ν = c/λ
= (3 x )/ (1.0 x )
= 3 x Hz
= 3 THz (Terra Hertz)
Hence the frequency of infrared light of 1.0 x is 3 THz