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2 years ago

What is the common trait of all main-sequence stars?.

Physics

1 answer:

Andrei [34K]2 years ago

5 0

Answer:

They generate energy through hydrogen fusion in their core.

Explanation:

hope this helps :)

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Rus_ich [418]

40mph easy

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2 years ago

Chloroplasts convert energy from the sun into ________________.Immersive Reader

Aleksandr [31]

Answer:

1) glucose

2) ATP

Explanation:

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6 0

3 years ago

A car completes a journey in 2 hours. Its average speed over this journey was 45mph. Calculate the distance travelled by the car

HACTEHA [7]

Distance = average speed ×time

Distance = 45 × 2

Distance = 90 miles

8 0

3 years ago

What often happens to light when it travels from one medium to another

quester [9]

Answer:

Although the speed changes and wavelength changes, the frequency of the light will be constant. The frequency, wavelength, and speed are related by: The change in speed that occurs when light passes from one medium to another is responsible for the bending of light, or refraction, that takes place at an interface.

Explanation:

3 0

3 years ago

A charge of -3.02 μC is fixed in place. From a horizontal distance of 0.0377 m, a particle of mass 9.43 x 10^-3 kg and charge -9

Andreyy89

Answer:

$d = 0.0306 m$

Explanation:

Here we know that for the given system of charge we have no loss of energy as there is no friction force on it

So we will have

$U + K = constant$

$\frac{kq_1q_2}{r_1} + \frac{1}{2}mv_1^2 = \frac{kq_1q_2}{r_2} + \frac{1}{2}mv_2^2$

now we know when particle will reach the closest distance then due to electrostatic repulsion the speed will become zero.

So we have

$\frac{(9 \times 10^9)(3.02 \mu C)(9.78 \mu C)}{0.0377} + \frac{1}{2}(9.43 \times 10^{-3})(80.4)^2 = \frac{(9 \times 10^9)(3.02 \mu C)(9.78 \mu C)}{r} + 0$

$7.05 + 30.5 = \frac{0.266}{r}$

$r = 7.08 \times 10^{-3} m$

so distance moved by the particle is given as

$d = r_1 - r_2$

$d = 0.0377 - 0.00708$

$d = 0.0306 m$

6 0

3 years ago