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3 years ago

Explain relative velocity briefly

Physics

1 answer:

fomenos3 years ago

4 0

Answer:

Explanation:

Relative velocity is defined as the velocity of an object B in the rest frame of another object A.

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3 years ago

Read 2 more answers

A gas has a variable volume. True False

nekit [7.7K]

Answer:

True

Explanation:

Gas always live in free state but some gas is not . We can said that mostly gas volume can be changeable during disturbing by environment situation.

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2 years ago

An AC voltage source and a resistor are connected in series to make up a simple AC circuit. If the source voltage is given by ΔV

ra1l [238]

Answer:

t = 5.48 × 10⁻³ s

Explanation:

Given:

ΔV = ΔVmax × sin(2πft)

frequency, f = 16.9Hz

thus,

ΔV = ΔVmax × sin(2π×16.9×ft)

Now,

Let 'R' be the resistance

Also according to the ohms law

i = V/R

where,

i = current

V = voltage

hence,

$i=\frac{\Delta V_{max}sin(2\pi \times 16.9\times t)}{R}$

also, given at time 't' the current in the circuit is 55.0% of the peak current

thus

$i=\frac{55}{100}\times \frac{\Delta V_{max}}{R}=0.55\times \frac{\Delta V_{max}}{R}$

thus,

$0.55\times \frac{\Delta V_{max}}{R}=\frac{\Delta V_{max}sin(2\pi \times 16.9\times t)}{R}$

$0.55=sin(2\pi \times 16.9\times t)}$

$0.5823=(2\pi \times 16.9\times t)}$

t = 5.48 × 10⁻³ s (Answer)

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3 years ago

Sound travels at approximately 1,500 m/s in sea water. How far will a sonar pulse travel in 90 s?

pav-90 [236]

Answer:

135,000 m

Explanation:

(1500 m/s) (90 s) = 135,000 m

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4 years ago

Malaria is a disease caused by a protozoan. This protozoan lives in the salivary glands of certain mosquitoes without causing th

Ray Of Light [21]

I think they are exhibiting symbiosis.

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3 years ago

Explain relative velocity briefly​

Explain relative velocity briefly