Which of the following is a theory stating that one plate is forced beneath another plate?

Electricity and magnetism are? Regulated by one force with positive and negative charges Two separate forces Both of the above

Anarel [89]

Answer:

two separate forces

Explanation:

Electricity and magnetism are two separate forces. However, they come together in a field called electromagnetism. Both types of forces are linked; a moving magnet may push electric charges and trigger electric current. Objects which have both positive and negative charges are mutually repulsive to each other, and those with opposite charges are mutually attractive.

5 0

3 years ago

A charging RC circuit controls the intermittent windshield wipers in a car. The emf is 12.0 V. The wipers are triggered when the

lilavasa [31]

Answer:

$R=803k\Omega$

Explanation:

We have the following information,

$V_0 = 12V\\V=10V\\c= 1.25*10^{-6}F\\t=1.8s$

We apply the equation for capacitor charging the voltage across it,

$V=V_0 (1-e^{-t/x})\\e^{-t/x}=1-(\frac{V}{V_0})\\-\frac{t}{Rc}=ln(\frac{V}{V_0})\\R=-\frac{t}{ln(\frac{V}{V_0})*c}$

Replacing values,

$R=-\frac{1.8}{ln(10/12)*1.25*10^{-6}}$

$R=803k\Omega$

3 0

3 years ago

The substances in the table are combined, and Substance 1 loses 40 calories of heat. How many calories of heat will Substance 2

Luda [366]

Over time, the substances will reach equilibrium, meaning the heat calories lost by Substance 1 will be gained by Substance 2. Therefore, Substance 2 will eventually gain 40 calories of heat.

5 0

3 years ago

Read 2 more answers

Which process requires water to gain 2260 joules of energy per gram?

yuradex [85]

Vaporization - The amount of heat needed to convert unit mass of a liquid into vapor form without a change in temperature is called heat of vaporization. For water the heat of vaporization is 2260 Joules / gram at its normal boiling point .

4 0

3 years ago

A car battery has a rating of 290 ampere-hours. This rating is one indication of the total charge that the battery can provide t

jekas [21]

Answer:

The total charge that can be delivered is 1044000 Coulombs

Explanation:

As we know that current I flowing given by:

I=Δq/Δt

Where Δq is charge moving

Δt is time

So

Δq=IΔt

Δq=290A×1 hour

Δq=290A×3600s

Δq=1044000 Coulombs

The total charge that can be delivered is 1044000 Coulombs

8 0

3 years ago