4 years ago

What is neptune's greatest features?

Physics

1 answer:

Alex777 [14]4 years ago

8 0

Neptune was named after the Roman god of the sea and it is the last known of the planets

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A series of pulses of amplitude 0.25 m are sent down a string that is attached to a post at one end. The pulses are reflected at

Klio2033 [76]

Answer:

Explanation:

since the string is rigidly attached to the post, the reflected and incident pulses are of the same amplitude but different polarities. At the point where the two pulses meet, the amplitude will be the addition of that of the incident and the reflected pulses. i.e Amplitude= 0.25 + -0.25=0m

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4 years ago

Lauren is comparing rocks from two different locations. She has the following

telo118 [61]

Answer:

the same type because they both formed from rock material.

Explanation:

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3 years ago

The objective lens of a certain refracting telescope has a diameter of 63.5 cm. The telescope is mounted in a satellite that orb

Ostrovityanka [42]

Answer:

0.255 m

Explanation:

We are given that

Diameter=d=63.5 cm= $63.5\times 10^{-2} m$

$1 cm=10^{-2} m$

L=265 km = $265\times 1000=265000 m$

Wavelength, $\lambda=500nm=500\times 10^{-9} m$

$1nm=10^{-9} m$

We have to find the minimum distance between two objects on the ground if their images are to be resolved by this lens.

$sin\theta=1.22\frac{\lambda}{d}$

$sin\theta=\frac{1.22\times 500\times 10^{-9}}{63.5\times 10^{-2}}$

$sin\theta=\approx \theta=9.606\times 10^{-7} rad$

$\frac{y}{L}=tan\theta\approx \theta$

$y=L\theta=265000\times 9.606\times 10^{-7}=0.255 m$

5 0

3 years ago

A crate is pushed up a ramp at an angle of 30 degree by a 300 N force. How much power is spent in raising the crate to a height

kotegsom [21]

Answer:

You use a force of 150 N to push a 30 kg crate across the floor for a distance of 10 m. If the crate is moving at a speed of 5 m/s…

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3 years ago

Raising 100 grams of water from 40 to 60 °C (the specific heat capacity of water is 1

faust18 [17]

Heat in a system can be calculated by multiplying the given mass to the specific heat capacity of the substance and the temperature difference. It is expressed as follows:

Heat = mC(T2-T1)
Heat = 100(1)(60-20)
Heat = 4000 calories addition to the system

Hope this answers the question. Have a nice day.

4 0

3 years ago