Each of three tuning forks, A, B, and C, has a slightly different frequency. When A and B are sounded together, they produce a b
1 answer:
Answer:
The smallest possible beat frequency when B and C are sounded together is 3 Hz
Explanation:
Given;
the beat frequency of A and B = 2 Hz
the beat frequency of A and C = 5 Hz
Beat frequency is equal to the difference in frequency of the two notes that interfere to produce the beats.
Therefore, the smallest possible beat frequency when B and C are sounded together is 3 Hz
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Incomplete question. However, I provided a brief about Kinetic energy generation.
<u>Explanation:</u>
Interestingly, Kinetic energy in simple terms refers to the energy possessed by a body in motion.
It is often calculated using the formula E =
A good example of creating even more kinetic energy is a hand crank toy car that moves after you wind it a little, when the car moves it is generating another measure of K.E.
Answer:
C. The wheel with spokes has about twice the KE.
Explanation:
Given that
Mass , radius and the angular speed for both the wheels are same.
radius = r
Mass = m
Angular speed = ω
The angular kinetic energy KE given as
I=Moment of inertia for wheels
Wheel made of spokes
I₁ = m r²
Wheel like a disk
I₂ = 0.5 m r²
Now by comparing kinetic energy
KE₁= 2 KE₂
Therefore answer is C.
Answer:
The internal resistance of the battery is 1.0 Ω.
Explanation:
Given that,
Voltage = 12,0 V
Resistance of each resistor = 6.0 Ω
Current = 4.0 A
When three resistors are connected in parallel.
We need to calculate the resistance
Using formula of parallel
Here, R₁ = R₂ = R₃
The equivalent resistance is
We need to calculate the internal resistance
Using ohm's law
Where, R = resistance
r = internal resistance
V = voltage
I = current
Put the value into the formula
Hence, The internal resistance of the battery is 1.0 Ω.