If a thief jumps from the tried floor of a house while holding a box on
2 answers:
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Complete Question
A wave is described by y(x,t) = 0.1 sin(3x + 10t), where x is in meters, y is in centimetres and t is in seconds. The angular wave frequency is
Answer:
The value is
Explanation:
From the question we are told that
The equation describing the wave is y(x,t) = 0.1 sin(3x + 10t)
Generally the sinusoidal equation representing the motion of a wave is mathematically represented as
Where w is the angular frequency
Now comparing this equation with that given we see that
Answer:
35.6 s
Explanation:
The power through the resistor is given by:
where V=9.0 V is the voltage and I=0.50 A is the current. Substituting into the formula, we find
The power is also equal to:
where W is the work done while t is the time taken. Since we know the work done, W=160 J, we can re-arrange the equation to find the time taken: