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
Ugo [173]
3 years ago
8

Can someone please help me

Physics
1 answer:
Y_Kistochka [10]3 years ago
4 0

#3).  The wavelengths of the four types of electromagnetic
radiation on that list line up like this:

Longest ... microwaves
next . . . . . infrared waves
next . . . . . visible light waves
shortest ... ultraviolet waves

#4).  The word "visible" means "able to be seen".  Infrared
light and ultraviolet light are not visible to human eyes.


You might be interested in
A girl with a mass of 27 kg is playing on a swing. There are three main forces
N76 [4]

The tension in the swing's chain at the bottom of the swing is 178.35 N.

The given parameters:

  • Mass of the girl, m = 27 kg
  • Speed of the girl, v = 3 m/s
  • Radius of the circle, r = 4 m

The tension in the swing's chain at the bottom of the swing is calculated as follows;

T = mg + ma_c\\\\ T= mg + \frac{mv^2}{r} \\\\T = (12 \times 9.8) + (\frac{27 \times 3^2}{4} )\\\\T = 117.6 \ N \ + \ 60.75 \ N\\\\T = 178.35 \ N

Thus, the tension in the swing's chain at the bottom of the swing is 178.35 N.

Learn more about tension in vertical circle here: brainly.com/question/19904705

3 0
2 years ago
if a weight of 100 lbs is moved through a displacement of 1.2m, how much work was done to move the weight
OLEGan [10]

Answer:

534 j

Explanation:

100 lbs = 45.359 kg

work = F * d

         = 45.359 * 9.81  * 1.2 = ~ 534 j

6 0
3 years ago
What happens when a car that weighs 300 lbs. driving at speeds of 80 mph collides with a bystander that weighs 180 lbs.
EleoNora [17]

Answer:

Basically, at these speeds, the car will, at random times, swerve a bit to one side or the other as if hit by some huge wind (even on the calmest of days). It doesn't happen at slower speeds driving mechanically identical cars, managed to accelerate to a formidable 150 mph and stay there for most of the journey, shifting to higher gears and remaining.

Hope this helped you!

Explanation:

3 0
4 years ago
An electric motor in a hair dryer is running at its normal constant operating speed and, thus, is drawing a relatively small cur
svlad2 [7]

Answer:

The temperature of the coil will increase (over heating will occur)

Explanation:

This overheating generally occurs when the motor is overloaded, when a bearing seizes up, when something locks the motor shaft and prevents it from turning, or when the motor simply fails to start properly.

Back emf is zero when the motor is not turning, and it increases proportionally to the motor's angular velocity. As the motor turns faster and faster, the back emf grows, always opposing the driving emf, and reduces the voltage across the coil and the amount of current it draws.

3 0
3 years ago
*PLEASE HELP*
Westkost [7]

Answer:

640.5

Explanation: i got it right on acellus

5 0
3 years ago
Read 2 more answers
Other questions:
  • A wave has the wavelength equal to 396 nm. what must be the frequency of this wave
    5·1 answer
  • Two negative charges that are both -3.0 C push each other apart with a force of 19.2 N. How far apart are the two charges ?
    7·1 answer
  • How high up is a 3kg object that has 300 joules of energy
    12·1 answer
  • You are planning a trip to the beach 250 miles away. How long will it take if you think you can average 55 miles per hour?
    6·1 answer
  • The number of significant digits in the mass of a body measuring 4200.0 kg is 2.
    6·2 answers
  • How many neutrons does this atom have?
    9·2 answers
  • A ball is launched horizontally from the top of a cliff with an initial velocity of 20 m/s. If the ball strikes the ground after
    13·1 answer
  • A car traveling 35 km/hr accelerates to a speed of 45 km/hr in .25 hr. What is its acceleration
    9·1 answer
  • 7. Copper can be coated on the surface of iron but not on silver? why​
    5·1 answer
  • According to the __________perspective, people who suffer from PTSD are classically conditioned.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!