Answer:
the vibrations push the purse up and down very fast and gravity pushes the purse down onto the floor
Explanation: does that help
Before answering this question it is necessary to know the conversion factors for temperatures.
<em>273 k = 0 ° C
</em>
To transform a temperature from Kelvin to ° C we use the following Formula
T ° C = T Kelvin - 273
<u>For 373 K</u>
373K -273 = 100 ° C
<em>373 Kelvin equals 100° C.
</em>
To transform a temperature from ° C to ° F we use the following formula:
(T° C x 9/5) + 32 = T ° F
Then:
<u>For 0 ° C
</u>
(0° C x 9/5) +32 = 32 ° F
<em>0° C equals 32 ° F.
</em>
<u>For 100° C
</u>
(100 ° C x 9/5) +32 = 212 F
<em>100 ° C equals 212 ° F.
</em>
Therefore, the correct option is the first:
373 Kelvin = 100 ° C = 212 ° F
Angling of the focal track of the anode to create a large actual focal spot and a smaller effective focal spot describes the line focus principle
<h3>
What is the line focus principle?</h3>
The line focus principle states that as the anode angle is reduced, the actual focal spot also becomes small but the heat loading is increased.
It also explains the relationship between the anode surface and the effective focal spot size.
As a result of this, by angling the target, effective area of the target is made much smaller that the actual area of electron interaction.
Hence, angling of the focal track of the anode to create a large actual focal spot and a smaller effective focal spot describes the line focus principle.
Learn more about line focus principle here:
#SPJ1
Answer:
Q = -52.56 nC
Explanation:
The electric field outside a spherical shell is given by
where:
Q is the net charge
r is the radius of the spherical shell and E is the electric field magnitude.
Given:
r = 0.725 m
since the field points radially toward the center of the sphere, E = -899 N/C.
k is a constant with a value = 8.99 x 109 Nm²/C².
∴
Q = -52.56 nC
