If a = v^2/r, then v = plus or minus the square root of a times r
Resistance = V/I Dimensional formula for V ML2T -3A -1 Dimensional formula for I A Dimensional formula for R= ML2T -3A -1 / A = ML2T -3A -2
Resistance = V/I Dimensional formula for V ML2T -3A -1 Dimensional formula for I A Dimensional formula for R= ML2T -3A -1 / A = ML2T -3A -2
Yes, a unit vector can have negative component since a unit vector has same magnitude and direction as a negative unit vector. Here is the general work out of the problem: Let |v| be the norm of (v1, v2). Then, the unit vector is (v1/|v|, v2/|v|). Determine the "modulus" or the norm |(v1/|v|, v2/|v|)| to get 1, which is the new norm. If we determine the norm of |(-v1/|v|, -v2/|v|)|, we still have the same norm 1.
V = {pi} r2 h is the formula for the volume (V) of a cylinder of radius r and height h.
volume of cylinder = 'pi'. (radius)2.height V = pi.r2.h Note : pi is a constant, value (approx) = 3.1415....... the dot symbol is the multiplication.. to find radius, rearrange the formula for the value of 'r' i hope this helps BY- Narendra Paudel
The formula for power is W = v2/R therefore the resistance is v2/W where v2 = v*v or v-squared. due to a font fault these formulas cannot be expressed correctly. But the answer to the question is R = 240*240/75 ohms.
W=watts, V=volts, I=amps or current, R=resistance W = V x I or, W = I2 x R or, W = V2 / R.
Power ( in watt) =Voltage (in Volt) x Current (in Ampere) P=V I We Know, V=I R So we can also write, P=I2 R or P=V2/ R
V2(Cr2O7)5
Centripetal force has the following formula: Fcentripetal = m times V2/r What that says is that for a constant r in an example, the Fcentripetal is proportional to V2. The centripetal force is proportional to the square of the velocity of the object.
The higher voltage need more resistance, from the formula W = V2 / R. That means R = V2 / W. So 220 v 100 W is 484 ohms, while 115 v 100 W is 132¼ ohms.
V2S5
v=1/4(squareroot)a/2b make A the subject
Assuming the two bulbs are made to run on the same voltage, the one with the smaller power draws less current therefore its resistance is higher. The formula is: R = V2 / W and here V2 indicates V*V (V-squared) until the fault in the font is fixed.
By newton's second law: force = mass x acceleration. Acceleration can be found by the formula a = v2/r, or alternately, a = omega2 x r (where v is the speed, r is the radius, and omega is the angular velocity in radians/second).
That entirely depends on whether the resistances are in series or in parallel with each other. Ohm's law states that I=V/R. i.e. current = voltage/resistance. If you know the current and voltage you can find the resistance. You can use algebra to rearrange the formula for R and get that R= V/I. Resistance = voltage/current.
R=i/v If R = resistance, i = current and v = voltage, the formula is incorrect. It should be: R = v/i