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
alina1380 [7]
3 years ago
12

What is the frequency of a microwave of wavelength 3cm?

Physics
1 answer:
navik [9.2K]3 years ago
5 0

Frequency = (speed) / (wavelength)

Speed = 3 x 10⁸ m/s

Wavelength = 3 cm = 0.03 m

Frequency = (3 x 10⁸  m/s) / (0.03 m)

Frequency = (3 x 10⁸ / 0.03) (m / m-s)

Frequency =  1 x 10¹⁰ Hz (10 Gigahertz)

You might be interested in
A wave created by shaking a rope up and down is called a.
Sidana [21]
A wave created by shaking a rope up and down is called a:
(According to me and certified experts) Transverse wave.

If this helps, then please give Brainliest!
5 0
1 year ago
10. What is the acceleration of a 1000 kg car subject to a 500 N net force?
Simora [160]

Answer:

0.5m/s^2

Explanation:

We can use the formula [ F = ma ] but solve for "a" since that is what we are looking for.

F = ma

F/m = a

We know the net force and mass so substitute those values and simplify.

500/1000 = 0.5m/s^2

Best of Luck!

3 0
2 years ago
A 2,000 kg rocket is launched 12 km straight up at a constant acceleration into the sky at which point the rocket is travelling
hodyreva [135]

Answer:

797700000 J

Explanation:

From the question,

The work done by the rocket, is given as,

W = Ek+Ep............. Equation 1

Where Ek and Ep are the potential and the kinetic energy of the rocket respectively.

Ep = mgh............ Equation 2

Ek = 1/2mv²............. equation 3

Substitute equation 2 and equation 3 into equation 1

W = mgh+1/2mv².............. Equation 4

Where m = mass of the rocket, h = height, v = velocity of the rocket, g = acceleration due to gravity.

Given: m = 2000 kg, h = 12 km = 12000 m, v = 750 m/s, g = 9.8 m/s²

Substitute into equation 4

W = 2000(12000)(9.8)+1/2(2000)(750²)

W = 235200000+562500000

W = 797700000 J

4 0
3 years ago
What the 3 law of newton mean
Masteriza [31]
Newtons third law of motion states that for every action, there is an equal an opposite reaction. This means that the force on back on something is going to be equal in size and opposite in direction. 
3 0
3 years ago
The total units by an objects as it changes position is called _____ ?
Alika [10]
Change in position of object = Displacment
7 0
3 years ago
Other questions:
  • I need help with these two not sure on them
    9·1 answer
  • A person in a kayak starts paddling, and it accelerates from 0 to 0.65 m/s in a distance of 0.40 m. If the combined mass of the
    15·1 answer
  • A piece of hot copper of mass 4.00 kg has it's temperature decrease by 36.90 ºC when it is placed in a body of water of unknown
    6·1 answer
  • During takeoff, an airplane goes from 0 to 56 m/s in 9 s. How fast is it going after 4 s?
    10·1 answer
  • Which of the following best defines boiling point?
    9·1 answer
  • A man is flying in a hot-air balloon in a straight line at a constant rate of 5 feet per second, while keeping it at a constant
    9·1 answer
  • When a highly coherent beam of light is directed against a very fine wire, the shadow formed behind it is not just that of a sin
    13·2 answers
  • How do I find time?
    12·1 answer
  • Hey can anyone help me with my physics exam​
    11·2 answers
  • Please help and thank you
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!