if a ball on a string swung in a circles and string suddenly breaks.the ball will move into what direction?

Alex73 [517]

Answer:

Photosynthesis is the process where by the leaves of a plant takes in carbon dioxide and water, in the presence of light and chlorophyll, makes glucose and oxygen as products of photosynthesis.

thank me later

6 0

3 years ago

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checking your understanding: which of the following would pose the mist immediate danger to your hearing???? a) a singing trio t

professor190 [17]

I believe the answer is C.

Concerts are blaring music which is extremely unhealthy for your ears. Not to mention is a rock concert where loud sounds and screaming are common. Then on top of that you are sitting in the third row. This would be an extreme hazard to your ears and probably the worst out of these 4 choices.

Thanks for using brainly :)

I hope this helped. Have a great night!

7 0

3 years ago

In this problem you are to consider an adiabaticexpansion of an ideal diatomic gas, which means that the gas expands with no add

LenKa [72]

Answer:

a)

The analytic expression for p(V) is $P(V) = P_{0}(\frac{V_{0}}{V})^{7/5}$

b)

The expression of the work in terms of p0 ,V0,V1 is

$W= \frac{5}{2} P_{0}[V_{0}-V_{0}^{7/5}V_{1}^{-2/5}]$

c)

The change in internal energy of the gas

$\delta U = \frac{5}{2}P_{0}[V_{0}^{7/5}V_{1}^{-2/5}-V_{0}]$

Explanation:

The explanation is shown on the first, second and third

6 0

4 years ago

This is a fossil of dinosaur footprints this fossil can give clues about the dinosaurs

mrs_skeptik [129]

I think the answer is size

7 0

3 years ago

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Sunlight strikes a piece of crown glass at an angle of incidence of 38.0°. Calculate the difference in the angle of refraction b

zhuklara [117]

Answer:

Difference in the angle of refraction = 0.3°

41.04° is the minimum angle of incidence.

Explanation:

Angle of incidence = 38.0°

For yellow light :

Using Snell's law as:

$\frac {sin\theta_2}{sin\theta_1}=\frac {n_1}{n_2}$

Where,

Θ₁ is the angle of incidence

Θ₂ is the angle of refraction

n₁ is the refractive index for yellow light which is 1.523

n₂ is the refractive index of air which is 1

So,

$\frac {sin\theta_2}{sin{38.0}^0}=\frac {1.523}{1}$

${sin\theta_2}=0.9377$

Angle of refraction for yellow light = sin⁻¹ 0.9377 = 69.67°.

For green light :

Using Snell's law as:

$\frac {sin\theta_2}{sin\theta_1}=\frac {n_1}{n_2}$

Where,

Θ₁ is the angle of incidence

Θ₂ is the angle of refraction

n₁ is the refractive index for green light which is 1.526

n₂ is the refractive index of air which is 1

So,

$\frac {sin\theta_2}{sin{38.0}^0}=\frac {1.526}{1}$

${sin\theta_2}=0.9395$

Angle of refraction for green light = sin⁻¹ 0.9395 = 69.97°.

The difference in the angle of refraction = 69.97° - 69.67° = 0.3°

Calculation of the critical angle for the yellow light for the total internal reflection to occur :

The formula for the critical angle is:

${sin\theta_{critical}}=\frac {n_r}{n_i}$

Where,

${\theta_{critical}}$ is the critical angle

$n_r$ is the refractive index of the refractive medium.

$n_i$ is the refractive index of the incident medium.

n₁ is the refractive index for yellow light which is 1.523 (incident medium)

n₂ is the refractive index of air which is 1 (refractive medium)

Applying in the formula as:

${sin\theta_{critical}}=\frac {1}{1.523}$

The critical angle is = sin⁻¹ 0.6566 = 41.04°

5 0

4 years ago