field of view
3mm = 3x10^-3m
1 micron = 10^-6m
so there are 3x10^-3/10^-6 microns in 3mm
=3000microns
for the area, pi D^2 => 3X2999^^2 sq microns => 27000 sq microns
Answer:
Length of the string, l = 0.486 meters
Explanation:
It is given that,
Mass of the string,
Tension in the string, T = 120 N
Frequency of transverse wave, f = 260 Hz
Wavelength of the wave,
The speed of a transverse wave (v) is given by :
........(1)
<em>Where,</em>
Also, speed of a wave, .........(2)
From equation (1) and (2) :
l = 0.486 m
So, the length of the string is 0.486 meters. Hence, this is the required solution.
White dwarf is white and dim
c. Energy and work
Explanation:
Energy and work done have the same unit of measurement. The unit of energy and work done is taken as the Joules(J).
- Energy is defined as the ability to do work. Energy is of two main forms.
- Potential energy is the energy at rest while kinetic energy is due to the motion of a body.
- All forms of quantitative energy calculations are expressed as the joules.
- Work done is the force applied to move a body through a particular distance.
Learn more:
Work done brainly.com/question/9100769
Energy brainly.com/question/4997571
#learnwithBrainly
Answer:
C. The car from driving off the road on a curve
Explanation:
A centripetal force actually causes circular motion. This occurs when an object moves in a circular path or a circle,a force will definitely act on it.
For instance, a car travelling in a circular path must definitely experience this force acting on it, even when the car moves at a constant speed. If it does not exist the object will definitely spin off in a direction tangential to the circular path or curve.