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3 years ago

Two resistors, R1 and R2, are

Physics

1 answer:

dlinn [17]3 years ago

3 0

The reciprocal of the total resistance is equal to the sum of the reciprocals of the component resistances:

1/(120.7 Ω) = 1/R₁ + 1/(221.0 Ω)

1/R₁ = 1/(120.7 Ω) - 1/(221.0 Ω)

R₁ = 1 / (1/(120.7 Ω) - 1/(221.0 Ω)) ≈ 265.9 Ω

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Goryan [66]

Answer:

5.00

Explanation:

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4 years ago

At one particular moment, a 19.0 kg toboggan is moving over a horizontal surface of snow at 3.60 m/s. After 6.75 s have elapsed,

pav-90 [236]

Answer:

Friction force acting on the toboggan is 10.13 N.

Explanation:

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Negative sign just signifies that force is acting in a direction opposite to the direction of motion.

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larisa86 [58]

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3 years ago

Read 2 more answers

A man walked 50 m to the south, turned, walked 40 m to the west.

MaRussiya [10]

Answer:

Direction is N 51.3° E

Explanation:

» From trigonometric ratios:

${ \tt{ \red{ \tan( \theta) = \frac{opposite \: { \blue{(south)}}}{adjacent \: { \blue{(west)}}} }}} \\ \\ { \tt{ \tan( \theta) = \frac{50}{40} = \frac{5}{4} }} \\ \\ { \tt{ \theta = { \tan }^{ - 1} ( \frac{5}{4}) }} \\ \\ { \tt{ \theta = 51.3 \degree}} \\ \\ { \boxed{ \tt{ \: direction : \:{ \green{N }}\: 51.3 \degree \: { \green{ E }}}}}$

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2 years ago

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leva [86]

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3 years ago