Answer:
A. 9 Watts
B. 2.25 Watts
C. 4.5 Watts
Arranging the circuit from lowest power to highest power we have
Circuit B, circuit C, circuit A.
Explanation:
The power in an electric circuit can be obtained by the following equation:
Power (P) = current (I) x voltage (V)
P = IV
With the above equation, let us calculate the power of each circuit. This is illustrated below:
A. Current (I) = 3A
Voltage (V) = 3V
Power (P) =?
P = IV
P = 3 x 3 = 9watts
B. Current (I) = 1.5A
Voltage (V) = 1.5V
Power (P) =?
P = IV
P = 1.5 x 1.5 = 2.25watts
C. Current (I) = 1.5A
Voltage (V) = 3V
Power (P) =?
P = IV
P = 1.5 x 3 = 4.5watts
Arranging the circuit from lowest power to highest power we have
Circuit B, circuit C, circuit A.
Answer:
Explanation:
Let the potential difference between the middle point and one of the plate be ΔV .
electric potential energy will be lost and it will be converted into kinetic energy .
Electrical potential energy lost = Vq , where q is charge on charge particle .
For proton
ΔV× q = 1/2 M V² ( kinetic energy of proton )
where M is mass and V be final velocity of proton .
For electron
ΔV× q = 1/2 m v² ( kinetic energy of electron )
where m is mass and v be final velocity of electron . Charges on proton and electron are same in magnitude .
As LHS of both the equation are same , RHS will also be same . That means the kinetic energy of both proton and electron will be same
1/2 M V² = 1/2 m v²
(V / v )² = ( m / M )
(V / v ) = √ ( m / M )
In other words , their velocities are inversely proportional to square root of their masses .
Answer:
There is only a beat frequency when the frequency heard (perhaps a tuning fork) is different from the frequency from the object in question (piano string, etc.).
The beat frequency equals the difference of the frequencies of the sources.
<span>F = ma
420,000N = 5kg * a
acceleration = 84,000 m/s^2
V = Vo + 1/2 at^2
3,300 m/s = 0 + 1/2 (84,000) *t^2
t = 3.567 seconds
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Answer: Brittle
Explanation:
took the test and I chose Soft, Soft is the wrong answer don't choose it. The CORRECT ANSWER IS BRITTLE