Answer:
Visible Light and Radio waves
Explanation:
The earth's atmosphere is transparent to a few windows in the electromagnetic spectrum. it is completely transparent to allow observation from the ground in visible light rang 380 to 740 nano meters. Also in the range of radio wave as communication are done from space to ground in the form of radio waves.
it is Partially transparent to Microwave and infrared range.
Acceleration is any change in speed or direction of motion.
Speed and direction together comprise 'velocity'.
Answer:
<h2> 33N</h2>
Explanation:
Note: the unit for acceleration in m/s^2
Also, the unit of the mass in the problem is assumed to be in kg
We are going to use newtons second law of motion which expresses the weight in an elevator as
F=ma
Given data
Acceleration of the elevator a= 2.2m/s^2
mass m = 15kg
substituting the data in the expression for force is
F=2.2*15
F= 33N
The reading of the balance is 33N
Answer:
op
Explanation:
At a distance of 1 cm from the source, the flux from the isotropic source is one hundred times brighter. Which source is brighter fifty centimeters away
