Answer:
The resistance for the second resistor is R2 = 240 Ohms and the equivalent resistance is Requivalent = 280 Ohms.
Explanation:
The resistance of a ohmic resistor is influeced by the type of it's material and by the it's construction. The longer the wire the greater the resistance and the greater the cross-sectional the lower the resistance. This can be expressed by the following equation:
R = (p*L)/A
Where p is a constant for the material of the resistor, L is the length of the wire and A is the area of the cross-sectional. In our case we have a resistor R1 that has a resistance of 40 Ohms, while a second resistor R2 made with the same material but with double length and half cross sectional. If we say that R1 is:
R1 = (p*L)/A
Then R2 must be:
R2 = (p*3*L)/(A/2)
Because the only things that changed were the length and area of the cross-sectional. We can now relate both resistors to find the second resistance, using the equation for R2. So we have:
R2 = [3*(p*L)/A]*2 = 6*(p*L)/A = 6*R1
We know that R1 is 40 Ohms so R2 = 6*40 = 240 Ohms.
The equivalent resistance of a series connection is the sum of the individual resistances, so we have:
Requivalent = R1 + R2 = 40 + 240 = 280 Ohms.
Answer:
The maximum acceleration amplitude is 40.28 g.s.
Explanation:
Given that,
Full scale suspension = 25 mm
Frequency = 20 Hz
We need to calculate the maximum frequency
Using formula of maximum frequency
Put the value into the formula
We need to calculate the maximum acceleration amplitude
Using restoring force
Using equation of S.H.M
On differentiating
On differentiating again
Maximum acceleration =ω²A
Which is at the maximum amplitude
Hence, The maximum acceleration amplitude is 40.28 g.s.
Answer:
The answer is A
Explanation: hope this helps :)
Answer:
The objects morion will remain the same
Explanation:
Answer:
6
Explanation:
m = Mass
c = Specific heat
= Change in temperature
s denotes stone
Heat is given by
Heat for the stone
Number of stones is given by
The number of stones is 6