Answer:
2048.63 N
Explanation:
Force: The product of mass and the acceleration of a body. The S.I unit of Force is Newton(N).
From the question
P = F×V.................... Equation 1
Where P = power generated by the car, F = Total resistive force acting on the car, V = Velocity of the car.
make F the subject of the equation
F = P/V................ Equation 2
Given: P = 75.0 hp = (75×745.7) = 55927.5 W, V = 27.3 m/s
Substitute into equation 2
F = 55927.5/27.3
F = 2048.63 N
Hence the total resistive force acting on the car = 2048.63 N
Answer:
B:The actual power dissipated by the resistor is less than P because the ammeter had some resistance.
Explanation:
Here,power has been calculated using current I and total EMF \ε . So,P=EMF*current= ε I will represent total power dissipated in resistor and ammeter.
Now, this total power P has been dissipated in both resistor and ammeter. So, power dissipated in resistor must be less than P as some power is also dissipated in ammeter because it has non-zero resistance.
So, the answer is B:The actual power dissipated by the resistor is less than P because the ammeter had some resistance.
Note that option A,C and E are ruled out as they state power dissipated by resistor is greater than or equal to P which is false.
Also,option D is ruled out as ammeter is connected in series.
<h2><em>the correct answer is </em></h2><h2><em>A) 111.36 seconds</em></h2><h2><em>HOPE IT HELPS (◕‿◕✿) </em></h2>
Answer:
2 : A large storm
Explanation: I hope this helps
Explanation:
Watts are defined as 1 Watt = 1 Joule per second (1W = 1 J/s)
which means that 1 kW = 1000 J/s. A Watt is the amount of energy (in Joules) that an electrical device (such as a light) is burning per second that it's running.
