3 years ago

Helppp plssss I am needing help for science and there is a photo pls answer

Physics

2 answers:

disa [49]3 years ago

7 0

Answer:

sorry I don't really know :P

Explanation:

trapecia [35]3 years ago

7 0

Answer:

how many of those questions do you need answers to?

Explanation:

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Jake calculates that the frequency of a wave is 500 hertz and that the wave is moving at 1,250 m/s. What is the wavelength of th

Neko [114]

Frequency (f) = 500 hz (SI)
Velocity (V) = 1250 m/s (SI)
Wavelength (Lambda) = ? meters

$v = \lambda \times f$
$1250 = \lambda \times 500 \\ \lambda = 1250 \div 500 \\ \lambda = 2.5 \: meters$

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3 years ago

A bicycle is a compound machine, true or false

JulsSmile [24]

This is true. The break handles and brakes are levers and the seat adjustment (raise or lower) is a screw.

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A long copper wire of radius 0.321 mm has a linear charge density of 0.100 μC/m. Find the electric field at a point 5.00 cm from

krek1111 [17]

Answer:

$E=35921.96N/C$

Explanation:

From the question we are told that:

Radius $r=0.321mm$

Charge Density $\mu=0.100$

Distance $d= 5.00 cm$

Generally the equation for electric field is mathematically given by

$E=\frac{mu}{2\pi E_0r}$

$E=\frac{0.100*10^{-6}}{2*3.142*8.86*10^{-12}*5*10^{-2}}$

$E=35921.96N/C$

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3 years ago

List the forms of renewable energy that are curently in use

aliya0001 [1]

Here are the ones that I know about
and can think of just now:

-- wind
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-- nuclear
-- tidal
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3 years ago

Calculate the mechanical advantage of a hammer, if the input force is 125 N

olganol [36]

Answer:

Explanation:

Mechanical advantage = force out / force in

MA = 2000 N / 125 N

MA = 16

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