Answer:
148 V
Explanation:
The electric field can be obtained using the formula;
E= V/d
where;
E is the electric field intensity = 37 volt/m
V is the potential difference (the unknown)
m is the distance of separation = 4m
V = Ed
V = 37 volt/m * 4 m
V= 148 V
C) Infrared.
<h3>Explanation</h3>
The wavelength of the "primary" (a.k.a. "peak") outgoing radiation from the earth depends on the surface temperature of the earth.
,
where
- is the peak wavelength (in meters) of the outgoing radiation, and
- is the absolute temperature of the earth (the one in degrees Kelvins.)
The average temperature on the earth is around 15 °C (around 60 °F.)
Convert to degrees Kelvins:
.
Peak wavelength:
.
What kind of electromagnetic radiation is that? Refer to a chart of the EM spectrum.
Radiations:
- : ultra-violet (UV) or radiations that are more energetic than UV;
- : visible light;
- : infrared (IR) and less energetic radiations.
is longer than the wavelength of visible light. The radiation is infrared (IR.)
Answer: 40.2m/sec
Work: v=p/m= 5.83kg/0.145k=40.2cm/sec
Answer:
a= 2 m/s^2
Explanation:
take to the right as positive
let Ftot be the total forces acting on the box , m be the mass of the box and a be the acceleration of the box.
Ftot = 10 - 2 = 8 N
and,
Ftot = ma
a = Ftot/m
= 8/4
= 2 m/s^2
therefore, the acceleration of the box is of magnitude of 2 m/s^2.
Answer:The electrical current through the wires itself causes the home wiring to heat up. This is because as the electrons flow they come across the resistive forces of the medium's material, releasing energy that is expended in the form of heat energy
Explanation: