Is the series equivalent resistor larger than either resistor, or is it smaller?

1 answer:

6 0

The equivalent of several resistors in series is always more than the biggest single one, because it's their sum. ... In parallel, the equivalent is always less than the smallest one.

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How far does a car go in 10 seconds at the speed of 44m/s

musickatia [10]

Speed=44m/s

Speed=distance/time

Distance=speed x time

Distance=44 x 10

Distance=440m

7 0

3 years ago

A professor sits on a rotating stool that is spinning at 10.0 rpm while she holds a heavy weight in each of her hands. Her outst

MAVERICK [17]

Answer:

0.5864 m

Explanation:

$r_1$ = 0.705 m

$\omega_1$ = 10 rpm

$\omega_2$ = 20.5 rpm

$\left(m r_{1}^{2}\right) \omega_{1} &=\left(m r_{2}^{2}\right) \omega_{2}$

$r_{2}^{2} &=\frac{\left(m r_{1}^{2}\right) \omega_{1}}{\left(\omega_{2}\right)}$

$=\frac{\left(r_{1}^{2}\right) \omega_{1}}{\left(\omega_{2}\right)}$

$=\frac{\left((0.705 \mathrm{m})^{2}\right)(10 \mathrm{rpm})}{(20.5 \mathrm{rpm})}$

$=\sqrt{\frac{\left((0.705 \mathrm{m})^{2}\right)(10 \mathrm{rpm})}{(20.5 \mathrm{rpm})}}$

$r_{2} =0.5864\ m$

The weights are 0.5864 m apart.

7 0

4 years ago

A 89.3 kg horizontal circular platform rotates freely with no friction about its center at an initial angular velocity of 1.77 r

balu736 [363]

Answer:

$\omega_{2} = 1.107\,\frac{rad}{s}$

Explanation:

Let assume that circular platform is a solid cylinder. Given the absence of external forces, the situation can be analyzed by applying the Principle of Angular Momentum, which states that:

$I_{1}\cdot \omega_{1} = I_{2}\cdot \omega_{2}$