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meriva
3 years ago
6

What happens when velocity and acceleration are at right angles to each other

Physics
1 answer:
photoshop1234 [79]3 years ago
7 0
You get circular motion, where the acceleration is pointing towards the center of the circle, as long as they are constant, and not fluctuating.
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Why do we never notice quantization?
jarptica [38.1K]

Answer:

B

Explanation:

quantization of energy is only seen in atoms

7 0
3 years ago
What is the magnetic potential energy stored in a cylindrical volume of height hcylin = 50 mm and radius Rcylin = 24 mm that sym
Bumek [7]

Answer:

U=1.02\times 10^{-7}\ J

Explanation:

Given that

h= 50 mm = 0.05 m

R= 24 mm = 0.024 m

Rw= 2.1 mm = 0.0021 m

I= 2.9 A

We know that magnetic filed given as

B=\dfrac{\mu _oI}{2\pi r}

Volume of small element

dV= 2πr hdr

Now the magnetic potential energy given as

U=\int \dfrac{B^2}{2\mu_o}dV

B=\dfrac{\mu _oI}{2\pi r}

dV= 2πr hdr

U=\int\dfrac{\left(\dfrac{\mu _oI}{2\pi r}\right)^2}{2\mu_o}2\pi rhdr

U=\dfrac{\mu _oI^2h}{4\pi}\int_{R_w}^{R}\dfrac{dr}{r}

U=\dfrac{\mu _oI^2h}{4\pi}\times \ln\dfrac{R}{R_w}

Now by putting the values

U=\dfrac{4\pi \times 10^{-7}\times 2.9^2\times 0.05}{4\pi}\times \ln\dfrac{0.024}{0.0021}\ J

U=1.02\times 10^{-7}\ J

6 0
3 years ago
Explain why Newton's 1st Law is easily visualized in space.
andriy [413]

Answer:

Answer: Because it at rest indefinitely without any external force acting upon it. Newton's first law also applies when the rocket is gliding through space with no external forces on it, it will travel in a straight line at a constant speed forever

Explanation:

5 0
3 years ago
The place kicker on a football team kicks a ball from ground level with an initial speed of 4.00 m/s at an angle of 29.0° above
mafiozo [28]

Answer:

0.4 s

Explanation:

The time that the ball is in the air can be found with the next formula:

time = t = \frac{2v_{o}sen\beta}{g}

where v_{o} is the initial velocity of the ball, in this case:

v_{o}=4.00 m/s

β is the angle: β = 29.0°

And g is the acceleration of gravity: g=9.81m/s^2

Replacing all the values to find t, we have:

time = t = \frac{2(4m/s)sen(29)}{9.81m/s^2} = 0.4s

Thus, the ball is 0.4s in the air.

3 0
4 years ago
A grating has 2000 slits/cm/cm. How many full spectral orders can be seen (400 to 700 nmnm) when it is illuminated by white ligh
Anton [14]

With the use of the formula SinФ = nλ / d, there are 16 spectral orders which can be seen when it is illuminated by white light.

Given that a grating has 2000 slits/cm. That is,

d = 0.01 / 2000

d = 5 x 10^{-6} m

The wavelength λ = (700 - 400) nm

λ = 300 x 10^{-9} m

To calculate how many full spectral orders that can be seen (400 to 700 nm) when it is illuminated by white light, we will use the below formula

SinФ = nλ / d

Φ = Sin^{-1} (nλ / d)

When n = 1

Φ = Sin^{-1}(300 x 10^{-9}/ 5 x 10^{-6} )

Φ = 3.4 degrees

when n = 2

Φ = Sin^{-1}(2 x 300 x 10^{-9}/ 5 x 10^{-6} )

Ф = 6.9 degrees

When n = 3

Ф = Sin^{-1}(3 x 300 x 10^{-9}/ 5 x 10^{-6} )

When n = 16

Ф = Sin^{-1}(16 x 300 x 10^{-9}/ 5 x 10^{-6} )

Ф = Sin^{-1}(0.96)

Ф = 73.7 degrees

when n = 17

Ф = Sin^{-1}(17 x 300 x 10^{-9}/ 5 x 10^{-6} )

Ф = Sin^{-1}(1.05)

Ф = Error ( that is, it does not exist)

Therefore, there are 16 spectral orders which can be seen when it is illuminated by white light.

Learn more about double slit here: brainly.com/question/4449144

6 0
2 years ago
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