Ten
<em><u>Discussion</u></em>
Wattage is defined as W = Joules / second which means there is an energy transfer of so many joules / second.
A sounds like current
B is the answer. Read what B says and then read the definition above. Does that not sound like Energy over time?
C I don't have any idea what that is. It is just an answer, which does not make it right.
D. Slows? Sounds like resistivity or it is material dependent. It is not the answer.
Eleven
I'm not sure what answer is expected, but I'll do the calculations to justify my answer.
Total Resistance = 15 ohms.
E = 9 volts
I = E/R = 9/15 = 3/5
<em><u>Wattage 5 ohm resistor</u></em>
W = I^2 * R
W = 0.6^2 * 5
W = 1.8 Watts
<em><u>Wattage 10 ohm resistor</u></em>
W = I^2 * R
W = 0.6^2 * 10
W = 3.6 watts.
Now here's the point of the problem. Wattage = Energy / Time. Time is a constant. The only thing that can make the wattage go up Energy dissipated. That said, the 10 ohm resistor has the higher energy, because it has the higher power dissipation.
Answer: B
Twelve
This is a really handy problem to know the answer to. It determines how determine your electrical bill. Don't leave any appliance on beyond your immediate needs.
Total Wattage
The total wattage of this circuit is the total of the three appliances added together.
W1 = 240
W2 = 120
W3 = 780
Total Wattage = 1140
Formula
W = E*I
W = 1140
E = 120
I = ??
1140 = 120* I
1140/120 = I
I = 9.5
Answer: 9.5 or D
The electric current should also double. :)
The velocity of the trainee is 29 m/s or 0.42 rev/s
<h3>Further explanation</h3>
Acceleration is rate of change of velocity.
<em>a = acceleration (m / s²)v = final velocity (m / s)</em>
<em>u = initial velocity (m / s)</em>
<em>t = time taken (s)</em>
<em>d = distance (m)</em>
Centripetal Acceleration of circular motion could be calculated using following formula:
<em>a = centripetal acceleration ( m/s² )</em>
<em>v = velocity ( m/s )</em>
<em>R = radius of circle ( m )</em>
Let us now tackle the problem!
<u>Given:</u>
Radius of horizontal circle = R = 11.0 m
Force Felt by the Trainee = F = 7.80w
<u>Unknown:</u>
Velocity of Rotation = v = ?
<u>Solution:</u>
→ in rad/s
→ in rev/s
<h3>Learn more</h3>
<h3>Answer details</h3>
Grade: High School
Subject: Physics
Chapter: Circular Motion
Keywords: Velocity , Driver , Car , Deceleration , Acceleration , Obstacle , Speed , Time , Rate , Circular , Ball , Centripetal
Answer:
The correct answer is - radiant.
Explanation:
Electromagnetic waves are the transverse waves that get energy as radiation from the source and transfer to an absorber so, the radiant energy is the energy of electromagnetic waves.
Electromagnetic waves are can travel in space unlike mechanical waves and are made up of photons, tiny packets of energy. Electromagnetic waves or spectra include radio waves, infrared, light, microwaves, UV, X-rays, and gamma rays.
Answer:
Output voltage is 1.507 mV
Solution:
As per the question:
Nominal resistance, R =
Fixed resistance, R =
Gauge Factor, G.F = 2.01
Supply Voltage,
Strain,
Now,
To calculate the output voltage, :
WE know that strain is given by:
Thus
Now, substituting the suitable values in the above eqn: