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2 years ago

In Fig. on the right, what is the acceleration at 1.0 s?

Physics

2 answers:

AleksAgata [21]2 years ago

7 0

Answer:

10m/s2

Explanation:

Acceleration is defined as change in velocity over the time period

Now at 1second the velocity is 10m/s.

Hence the acceleration is V-U/t;

Where V is velocity at 10s and U is velocity when the object is at rest.

So we have;

Acceleration = 10-0/ 1 = 10m/s2

maks197457 [2]2 years ago

3 0

Answer:

10 m/s²

Explanation:

Acceleration is the slope of the velocity vs time graph.

At t = 1.0 s, the slope of the line is:

a = Δv/Δt

a = (20 m/s) / (2.0 s)

a = 10 m/s²

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The two most prominent wavelengths in the light emitted by a hydrogen discharge lamp are 656 nm(red) and 486 nm (blue). Light fr

STatiana [176]

Answer:

0.152 m

Explanation:

The condition for constructive interference is

d sinθ= mλ (m= 0,1,2,3...)

the slit width

d= 1/N

d= 10^(-3)/520

= 1.92×10^(-6)

The angular spread for the red light is

$\theta_r= sin^{-1}(\frac{m\lambda}{d})$

$\theta_r= sin^{-1}(\frac{656\times10^{-9}}{1.92\times10^{-6}})$

= 19.97°

The angular spread of blue light is

$\theta_b= sin^{-1}(\frac{m\lambda}{d})$

$\theta_b= sin^{-1}(\frac{456\times10^{-9}}{1.92\times10^{-6}})$

=14.66°

The distance between the first order red fringe and blue fringe is,

y= y_r- y_b = Ltanθ_r -Ltanθ_b

=1.50( tan19.97°-tan14.66°) = 0.152 m

5 0

3 years ago

When a pendulum swings if not continuously pushed it will stop eventually because some of its energy is changef into what energy

Musya8 [376]

When a pendulum swings if not continuously pushed it will stop eventually because some of its energy is changed into thermal energy.

3 0

3 years ago

Read 2 more answers

which cell structure is responsible for taking in and breaking down foreign particles and damaged organelles?

Klio2033 [76]

Answer:

lysosomes

Explanation:

4 0

3 years ago

Write equations for both the electric and magnetic fields for an electromagnetic wave in the red part of the visible spectrum th

Strike441 [17]

Answer:

$E=3.5(8.98*10^{6}x-2.69*10^{15}t)$

$B=1.17*10^{-8}(8.98*10^{6}x-2.69*10^{15}t)$

Explanation:

The electric field equation of a electromagnetic wave is given by:

$E=E_{max}(kx-\omega t)$ (1)

E(max) is the maximun value of E, it means the amplitude of the wave.
k is the wave number
ω is the angular frequency

We know that the wave length is λ = 700 nm and the peak electric field magnitude of 3.5 V/m, this value is correspond a E(max).

By definition:

$k=\frac{2\pi}{\lambda}$

$k=8.98*10^{6} [rad/m]$

And the relation between λ and f is:

$c=\lambda f$

$f=\frac{c}{\lambda}$

$f=\frac{3*10^{8}}{700*10^{-9}}$

$f=4.28*10^{14}$

The angular frequency equation is:

$\omega=2\pi f$

$\omega=2\pi*4.28*10^{14}$

$\omega=2.69*10^{15} [rad/s]$

Therefore, the E equation, suing (1), will be:

$E=3.5(8.98*10^{6}x-2.69*10^{15}t)$ (2)

For the magnetic field we have the next equation:

$B=B_{max}(kx-\omega t)$ (3)

It is the same as E. Here we just need to find B(max).

We can use this equation:

$E_{max}=cB_{max}$

$B_{max}=\frac{E_{max}}{c}=\frac{3.5}{3*10^{8}}$

$B_{max}=1.17*10^{-8}T$

Putting this in (3), finally we will have:

$B=1.17*10^{-8}(8.98*10^{6}x-2.69*10^{15}t)$ (4)

I hope it helps you!

8 0

3 years ago

What happens when a proton is placed directly in the path of the proton cannon?

blondinia [14]

Answer:coherent light

Explanation:

5 0

3 years ago