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3 years ago

Electromagnetic waves differ from other types of waves because they are

1 answer:

8 0

I think it is D because u think of space and Electromagnetic Waves Travel Through Space Moving All Kinds of Particles From The Sun With It Which Creates The Northern and Southern Lights In The Poles :-)

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What two kinds of motion combine to produce projectile motion?

solong [7]

The two kinds of motion are horizontal and vertical

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3 years ago

Two concentric current loops lie in the same plane. The smaller loop has a radius of 3.9 cm and a current of 12 A. The bigger lo

Svetradugi [14.3K]

Explanation:

Below is an attachment containing the solution.

4 0

3 years ago

A 30 g particle is undergoing simple harmonic motion with an amplitude of 2.0 ✕ 10-3 m and a maximum acceleration of magnitude 8

KiRa [710]

Answer:

Explanation:

By using the Newton second law and the position equation for a simple harmonic motion we have

$F=ma\\a_{max}=\omega^{2}A\\x=Acos(\omega t+ \phi)\\$

where a is the acceleration, w is the angular frecuency and \phi is the phase constant. We can calculate w from the equation for the maximum acceleration

$\omega=\sqrt{\frac{a_{max}}{A}}=\sqrt{\frac{8*10^{3}m/s^{2}}{2*10^{-3}}}=2000rad/s$

(a).

$F=ma=m\omega^{2}Acos(\omega t + \phi)\\F=(30*10^{-3}kg)(2*10^{-3}m)(2000\frac{rad}{s})^{2}cos(2000\frac{rad}{s} t - \frac{\pi}{2})=240N*cos(2000\frac{rad}{s} t - \frac{\pi}{2})$

(b). $T=\frac{2\pi}{\omega}=\frac{2\pi}{2000}=3.14*10^{-13} s$

(c). $v_{max}=A\omega=(2*10^{-3}m)(2000\frac{rad}{s})=4\frac{m}{s}$

(d). The mecanical energy is the kinetic energy when the velocity is a maximum

$E_{m}=E_{k}(v_{max})=\frac{mv_{max}^{2}}{2}=\frac{30*10^{-3}kg(4\frac{m}{s})^{2}}{2}=0.024J$

3 0

4 years ago

Read 2 more answers

Explain why electric discharge through a gas take place at low pressure

Nimfa-mama [501]

answer:

electric discharge takes place at low pressure because a small electric field is required.

explanation:

it was found that cathode when an electric field was applied perpendicular to the length of the discharge tube the cathode rays were found to be moving in a direction opposite of electric field
credits: online

6 0

3 years ago

What is the metric unit for velocity?

labwork [276]

Answer:

meters per second I need to make it longer so.......jrhjdjxjhdnxhjdhsvshdhhendjxjbdjdjxj

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3 years ago