The solution is impossible because when the apply the right equation for electrical power, the current obtained is 0.83 A and not 11.4 A
<h3>What is power?</h3>
This is defined as the rate in which energy is consumed. Electrical power is expressed mathematically as:
Power (P) = voltage (V) × current (I)
P = IV
With above formula, we can obtain the current drawn by the bulb. Details below
<h3>How to determine the current flowing in the circuit</h3>
From the question given, the following data were obtained:
- Power (P) = 100 W
- Voltage (V) = 120 V
- Current (I) =?
P = IV
Divide both sides by V
I = P / V
I = 100 / 120
I = 0.83 A
Thus, we can see that the current drawn by the bulb is 0.83 A and not 11.4 A
From the above, we can see clearly why the inquisitive physics student' calculation is wrong.
Learn more about electrical power:
brainly.com/question/64224
#SPJ4
Answer:
C. 2.5 days/mi
Explanation:
Speed is defined as the distance covered by an object divided by the time taken to cover that distance:
where
S is the distance covered
t is the time taken
At the numerator of the fraction, we have distance, which is a lenght. Lenght is measured in different possible units: meters (m), kilometer (km), mile (mi), centimeter (cm)...
At the denominator, we have a time, which can be measured in seconds (s), minutes (min), hours (h), days..
According to this, we can see that option
C. 2.5 days/mi
cannot represent a speed. In fact, at the numeratore we have days (which is a measure of time), while at the denominator we have mile (which is a measure of length), so in this fraction distance and time are inverted, therefore this cannot be a measurement of a speed.
Using the equation KE=1/2mv^2, plug in the numbers and solve for KE
Answer:
resistance of a conductor increases
Explanation:
The resistance of conductors is directly proportional to the temperature of the conductor. This implies that when the temperature of the conductor is increased, the resistance of the conductor increases likewise.
This is applied in the resistance thermometer. Resistance thermometers are useful for accurate temperature measurements at very high or very low temperatures.
Answer:
Kinetic - a box moving
Thermal - sand that feels warm
Electrical - lightning
Radiant - radio waves
Gravitational Potential - fruit hanging from a tree
