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vampirchik [111]

3 years ago

13

Please please please I need someone who knows mathematics and someone who knows biology and someone who knows physics, very, ver

y necessary

1 answer:

jenyasd209 [6]3 years ago

4 0

Answer:

ok then here i am lol

Explanation:

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Calculate the frequency (v) in Hertz (Hz) of a wave that has a wavelength of 4.71 meters.

MissTica

Answer:

6.37 x 10⁷Hz

Explanation:

Given parameters:

Wavelength = 4.71m

Unknown:

Frequency = ?

Solution:

To solve this problem, we use the expression below:

V = F∧

V is the velocity = 3 x 10⁸m/s

F is the frequency

∧ is the wavelength

3 x 10⁸ = F x 4.71

F = 63694267.52Hz = 6.37 x 10⁷Hz

6 0

3 years ago

A student of Physics applies a constant force of 25Newtons while lifting a heavy Physics book up into the air a distance of 2.0m

aleksley [76]

I believe the correct answer from the choices listed above is option 3. The work done by the student to the book would be 50 J. T<span>he </span>work done<span> by gravity is simply the force of gravity times the displacement. That is 25N x 2 m and is equal to 50 J. Hope this answers the question.</span>

7 0

3 years ago

If the same amount of force was applied to an object that was twice the mass,

Olegator [25]

Answer:

the object with greater mass will experience a smaller acceleration and the object with less mass will experience a greater acceleration.

Explanation:

According to Newton's second law, when the same force is applied to two objects of different masses, the two objects will change mass.

4 0

3 years ago

The Earth is approximately 150 million kilometers away from the Sun. If light travels at a speed of approximately 300,000 kilome

evablogger [386]

The correct answer to the question is 8.33 minutes.

CALCULATION:

The distance of earth from sun s = 150 million km.

We know one million = 10 lakh = $10^6$

Also 1 km = $10^3\ m$

Hence, the distance s = $150\times 10^6\times 10^3\ m$

= $15\times 10^{10}\ m$

The speed of light c = 300,000 km per second

= $3\times 10^8\ m/s$

We are asked to calculate the time.

The time of the reaching earth is calculated as -

$time=\ \frac{distance}{velocity}$

$t=\ \frac{s}{c}$

$=\ \frac{15\times 10^{10}} {3\times 10^8}\ second$

$=\ 500\ seconds$

We know one minute = 60 second.

Hence, 500 seconds = $\frac{500}{60}\ minute$

= $8.33\ minute$ [ans]

4 0

3 years ago

Read 2 more answers

Where can I find websites about ball launcher games?

denis23 [38]

Answer:

Google play I think that's it

7 0

3 years ago