An 8.2 kg object accelerates at 8.0 m/s^2. What is the acceleration?
1 answer:
You might be interested in
Complete Question
A football coach walks 18 meters westward, then 12 meters eastward, then 28 meters westward, and finally 14 meters eastward.
a
From this motion what is the distance covered
b
What is the magnitude and direction of the displacement
Answer:
a
b
Magnitude
Direction
West
Explanation:
From the question we are told that
The first distance covered westward is
=>
=>
For the second question eastward is in the direction of the positive x-axis so it would be positive and westward is in the direction of the negative x-axis so it would be negative
The magnitude of the displacement is
=>
=>
The direction is west
Answer:
b) twice the energy of each photon of the red light.
Explanation:
= Wavelength
h = Planck's constant =
c = Speed of light =
Energy of a photon is given by
Let = 700 nm
For red light
For UV light
Dividing the equations
Hence, the answer is b) twice the energy of each photon of the red light.