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3 years ago

Lila swam 50 meters north in 10 seconds. Find Lila's velocity

Physics

1 answer:

In-s [12.5K]3 years ago

8 0

Explanation:

50 meters north in 10 seconds.

speed = distance ÷ time = 50 meters ÷ 10 seconds = 5m/s

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Which property of a wave is labeled "x" on the diagram?

faust18 [17]

C wavelength due to the fact the a frequency does not have an x but a y

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3 years ago

1. Where are stars formed?

Ugo [173]

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C. A nebula.

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3 years ago

Read 2 more answers

||||| A ball on a porch rolls 60 cm to the porch’s edge, drops 40 cm, continues rolling on the grass, and eventually stops 80 cm

3241004551 [841]

Answer:

$d = 145.6 cm$

Explanation:

first ball rolls on the porch by total distance

$x_1 = 60 cm$

Then again it will move on horizontal floor

$x_2 = 80 cm$

also in vertical direction it will drop down

$y = 40 cm$

so we have

$x = 60 + 80$

$x = 140 cm$

$y = 40 cm$

so magnitude of net displacement of the ball is given as

$d = \sqrt{140^2 + 40^2}$

$d = 145.6 cm$

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3 years ago

An electromagnetic radio wave is received by a transmitter before it is converted to a sound wave. The radio wave has a waveleng

lakkis [162]

Answer: The velocity is the wave traveling at before the transmitter converts it to a sound wave is $2.99\times 10^8 m/s$

Explanation:

Wavelength of the electromagnetic wave = 23,076 m

Frequency of the wave = 13,000 Hertz

$\text{Time period}=\frac{1}{Frequency}$

$Velocity=\frac{displacement}{Time}=\frac{\lambda}{\text{Time period}}=\lambda \times Frequency=23,076\times 13,000 Hertz=2.99\times 10^8 m/s$

The velocity is the wave traveling at before the transmitter converts it to a sound wave is $2.99\times 10^8 m/s$

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3 years ago

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On the graph of voltage versus current, which line represents a 2.0 Ω resistor?

Vikki [24]

Answer:

Explanation:

According to ohm's law V = IR where;

V i sthe supply voltage (in volts)

I = supply current (in amperes)

R = resistance (in ohms)

In order to calculate the line that is equal to 2ohms, we need to calculate the slope of each line using the formula.

For line B, R = ΔV/ΔI

R = V₂-V₁/I₂-I₁

R = 14.0-4.0/7.0-2.0

R = 10.0/5.0

R = 2.0ohms

Since the slope of line B is equal to 2 ohms, this shows that the line B is the one that represents the 2ohms resistor.

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4 years ago