Answer:
12 N
Explanation:
Given,
Mass ( m ) = 3 kg
Acceleration ( a ) = 4 m/s^2
To find : Force ( F ) = ?
Formula : -
F = ma
F
= 3 x 4
= 12 N
Therefore, the force acting on the object is 12 N.
Answer:
Reflection
Explanation:
<em>The particles in the atmosphere only reflect the color blue and and all others are absorbed. Only the reflected colors can be seen from our eyes not the absorbed ones</em>
Answer:
Explanation:
Given
Distance between source and receiver
Sound Intensity
Distance of of second observer
Intensity varies as
using this
Answer:
C
Explanation:
If a pulley system has an efficiency of 74.2%, then only that fraction of the work performed will be useful. 74.2%=0.742. 0.742*200 is about 148J. Hope this helps!
The potential energy (P.E) of the rock relative to the base of the cliff is 31,054.926 Joules..
<u>Given the following data:</u>
- Acceleration due to gravity = 9.8
To calculate the potential energy (P.E) of the rock relative to the base of the cliff:
<h3>What is potential energy?</h3>
Potential energy (P.E) can be defined as the energy that is possessed by an object due to its position (height) above planet Earth.
Mathematically, potential energy (P.E) is given by this formula;
<u>Where:</u>
- P.E is the potential energy.
- m is the mass of an object.
- g is the acceleration due to gravity.
- h is the height of an object.
Substituting the given parameters into the formula, we have;
P.E = 31,054.926 Joules.
Read more on potential energy here: brainly.com/question/8664733