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USPshnik [31]
4 years ago
12

When resistors 1 and 2 are connected in series, the equivalent resistance is 14.9 ω. when they are connected in parallel, the eq

uivalent resistance is 2.69 ω. what are (a) the smaller resistance and (b) the larger resistance of these two resistors?
Physics
1 answer:
hodyreva [135]4 years ago
8 0
A) 3.52Ω
b) 11.38Ω

Both rounded to 2 decimal places.
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What is rectilinear propagation of light?​
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Answer:

Rectilinear propagation describes the tendency of electromagnetic waves to travel in a straight line. Light does not deviate when travelling through a homogeneous medium, which has the same refractive index throughout; otherwise, light suffers refraction.

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A 20 kg box rests on the ground. Round all answers to the hundredths, if necessary. What is the weight of the box?​
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A car moving with an initial speed of 25 m/s slows down to a speed of 5 m/s in 10 seconds Calculate a) the acceleration of the c
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Answer :

(a) The acceleration  of the car is, -2m/s^2

(b) The distance covered by the car is, 150 m

Explanation :  

By the 1st equation of motion,

v=u+at ...........(1)

where,

v = final velocity = 5 m/s

u = initial velocity  = 25 m/s

t = time = 10 s

a = acceleration  of the car = ?

Now put all the given values in the above equation 1, we get:

5m/s=25m/s+a\times (10s)

a=-2m/s^2

The acceleration  of the car is, -2m/s^2

By the 2nd equation of motion,

s=ut+\frac{1}{2}at^2 ...........(2)

where,

s = distance covered by the car = ?

u = initial velocity  = 25 m/s

t = time = 10 s

a = acceleration  of the car = -2m/s^2

Now put all the given values in the above equation 2, we get:

s=(25m/s)\times (10s)+\frac{1}{2}\times (-2m/s^2)\times (10s)^2

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s=150m

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3 years ago
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Answer:

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