1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
miv72 [106K]
3 years ago
12

One property that makes electromagnetic waves differ from other types of waves is that they can

Physics
2 answers:
IgorC [24]3 years ago
4 0
Electromagnectic Waves Travel In A Vacuum
julia-pushkina [17]3 years ago
3 0
Electromagnetic waves (such as visible light) do not need a medium through travel with. Ergo, they travel in a vacuum.  :) Hope this helps!
You might be interested in
A 26.0 kg beam is attached to a wall with a hinge while its far end is supported by a cable such that the beam is horizontal. If
Nuetrik [128]

Answer:

Force exerted by the hinge on the beam = 109.24N

Explanation:

Weight = mg = 26 x 9.81 = 255.06 N

Vertical component = T sin θ

Horizontal component = Tcos θ

Now, there are 3 vertical forces acting on the beam. These are;

- The downward force which is the weight of the beam.

- The vertical components of the tension in the cable.

-The force that hinge exerts on the beam are the upward forces.

Hence, for the beam to remain horizontal, the sum of the upward forces must be equal to the weight of the beam.

For us to determine the vertical component of the tension in the cable, we will do a torque problem. Let the pivot point be at the hinge. Let’s assume that the length of the beam is L. The vertical component of the tension in the cable will produce clockwise torque while the weight of the beam will produce counter clockwise torque.

Tbus;

Clockwise torque = TL sin 61

Since the center of mass of beam is at the middle of the beam, the distance from the hinge to the weight of the beam is L/2.

Counter clockwise torque = WL/2

Thus;

TL sin 61 = WL/2

L will cancel out.

T sin 61 = 255.06/2

T x 0.8746 = 127.53

T = 127.53/0.8746 = 145.82 N

Now, the equation to determine the vertical component of the force that the hinge exerts on the beam is given as;

T + F = W

Thus;

145.82 + F = 255.06

F = 255.06 - 145.82 = 109.24 N

8 0
2 years ago
How long would it take for a sound impulse to travel through an aluminum rod 1,500 meters long?
NNADVOKAT [17]
<span>I believe the answer is 0.29.</span>
5 0
3 years ago
Read 2 more answers
I need help in this pls i really need a answer
IrinaK [193]

Answer:

In terms of distance, average speed is 20 km/h

In terms of displacement, average speed is 0 km/h.

Explanation:

Total distance:

= (40.0 - 10.0) + (20.0 - 10.0) + (40.0 - 20.0) \\  = 30.0 + 10.0 + 20.0 \\  = 60.0 \: km

Total time is 3.0 hours

but:

average \: speed =  \frac{total \: distance}{total \: time}  \\

In terms of distance.

substitute:

average \: speed =  \frac{60.0}{3.0}  \\  \\  = 20 \:  {kmh}^{ - 1}

displacement = ( - 30.0) + 10 .0+ 20.0 \\  = 0

In terms of displacement:

speed =  \frac{0}{3}  \\  \\  = 0 \:  {kmh}^{ - 1}

3 0
3 years ago
Question 22
N76 [4]

Answer:

tan theta = -18 / 25 = -35.8 deg

This direction is south of east

5 0
2 years ago
Lisa is eating dinner.Which sensory organs is she most likely using to process what she is eating?
Sonbull [250]

Answer:

A

Explanation:

3 0
2 years ago
Read 2 more answers
Other questions:
  • Which statement is not true?
    13·2 answers
  • The capacitor in the flash of a disposable camera has a value of 165 μF. 1) What is the resistance of the filament in the bulb i
    15·1 answer
  • A representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products is cal
    6·2 answers
  • A paper filled capacitor is charged to a potential difference of 2.1 V and then disconnected from the charging circuit. The diel
    15·1 answer
  • Which or the following is a science ? A. Physics B.astrology C. Football statics D. Language studies
    7·2 answers
  • A 4n force is applied to an object with a mass of 2kg what is the accelertion of the object
    6·1 answer
  • wich following is not use of doppler effect? a, radar b, astronomy c, energy transmission d, blood floe measurment​
    6·1 answer
  • A wire of length L and cross-sectional area A has resistance R.
    13·1 answer
  • An ideal pendulum is often discussed when studying simple harmonic motion. What are the conditions needed for an ideal pendulum?
    10·2 answers
  • 2. It is to bring down the foot forcibly to the f a heavy step) with or without weight. 2 Ormain lateral position - This is done
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!