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Gnoma [55]
3 years ago
9

What conditions must be satisfied for a body to be in equilibrium ​

Physics
1 answer:
dem82 [27]3 years ago
5 0

For an object to be in equilibrium, it must be experiencing no acceleration. This means that both the net force and the net torque on the object must be zero.

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Withe light becomes a spectrum of seven colored lights after passing through a prism
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On a roller coaster ride at an amusement park, a car travels from 7.6 m/s to 56 m/s in 3 seconds. whats the cars acceleration?
nataly862011 [7]

Acceleration is defined as rate of change in velocity

So we can write its formula as

a = \frac{v_f - v_i}{t}

here we know that

v_f = final velocity = 56 m/s

v_i = initial velocity = 7.6 m/s

t = time interval to change the velocity = 3 s

now we will plug in all values in the above equation

a = \frac{56 - 7.6}{3}

a = \frac{48.4}{3}

a = 16.13 m/s^2

so here roller coaster will accelerate at rate of 16 m/s^2 and hence correct answer is "option d"

3 0
3 years ago
A series R-L-C circuit is connected to a 70.0 Hz ac source that has Vrms = 80.0 V . The circuit has a resistance of 80.0 Ω and a
Andreyy89

Answer:

62.7 VA

Explanation:

The apparent power (power supplied by the source) of an AC circuit is determined by

S = \frac{(Vrms)^2}{Z}

The impedance(Z) depends on the frequency, but in this case it is given to us that it is 102 ohms at this frequency.

So:

S = \frac{(80 V)^2}{102 \Omega} = 62.7 VA

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What is simple machine?​
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Those tools that helps to make our work easier ,faster and more convenient in our daily life it is called simple Machine.

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