The wording of the choices is really unclear. With two resistors in parallel,
here's the situation:
-- The voltage across each resistor is the same as the voltage across
the other one. If the parallel combination is connected to the battery,
then the voltage across each resistor is the full battery voltage.
-- The current through each resistor is (V) / (the resistance of that resistor).
That's the same current as would flow through that resistor if the other one
were not there.
-- As long as the battery or other power supply holds out, neither of these
quantities changes.
Can you match this situation to one of the choices listed ?
It looks to me as if choice 'C' is the one that's most likely
trying to say this.
Answer:
Physical property
Explanation:
Physical characteristic of matter is not associated with the changes in its chemical composition.Some of these properties are color and density that can be observed without altering the physical state of the matter.Other physical properties such as freezing and melting are observed when a change in physical state of matter. When there is not change in the identities of substances contained in the matter then that's a physical change property.
Answer:
Explanation:
Satellites experiment a force given by Newton's Gravitation Law:
where M is Earth's mass, m the satellite's mass, r the distance between their gravitational centers and G the gravitational constant.
We also know from Newton's 2nd Law that <em>F=ma, </em>so putting both together we will have:
If we are on the surface of the Earth, the acceleration would be g and (Earth's radius):
Which we will write as:
If we are on orbit the acceleration is centripetal (), so we have:
And if this orbit has a radius we have:
sorry I'm late but the answer is the 2nd option
Correct Answer: B optionPotential Difference = V = 200 V
Charge on the plate = Q =
C
Capacitance = C
Q, C and V for a parallel plate capacitor are related as:
Q = CV
⇒
C = Q/V
Using the values in the formula, we get:
F
Therefore, B option is the correct answer.