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
FromTheMoon [43]
3 years ago
10

Sunburn is caused by ultraviolet light waves having a frequency of around 10^16 Hz. What is their wavelength if the speed of lig

ht is 3 x 10^8 m/s?
15 nm
69 cm
45 mm
30 nm
Physics
1 answer:
Taya2010 [7]3 years ago
5 0

Given:\\f=10^{16}Hz\\c=3\cdot 10^8\frac{m}{s} \\\\Find:\\\lambda =?\\\\Solution:\\\\\lambda = \frac{c}{f} \\\\\lambda= \frac{3\cdot 10^8\frac{m}{s}}{10^{16}Hz} =3\cdot 10^{-8}m = 30nm

You might be interested in
Which of the following is true about inertia
Tamiku [17]

Answer:

The correct answers are It is the resistance of an object to changes in its motion, and It is a force

3 0
3 years ago
on a aircraft carrier a jet is slowed from 105 mph to a stop in 2 seconds. What is the rate of deceleration?
Bess [88]
105/2 = 52.5/1

The rate of deceleration is 52.5 mps (miles per second).
6 0
3 years ago
Minnie sota hits the end of a bar 1. 2 m long with a hammer. Sketch the standing wave on the bar for the following situations. T
ella [17]

(a) The wavelength of the wave for the fundamental mode is 2.4 m.

(b) The fundamental frequency of the wave is 2,708.33 Hz.

<h3>Wavelength of the wave for fundamental mode</h3>

The wavelength of the wave for the fundamental mode is calculated as follows;

Node to Node, N → N = λ/2

L = λ/2

λ = 2L

λ = 2 x 1.2

λ = 2.4 m

<h3>Fundamental frequency of the wave</h3>

The fundamental frequency of the wave is calculated as follows;

f = v/λ

f₀ = v/2L

f₀ = (6500)/(2 x 1.2)

f₀ = 2,708.33 Hz

The diagram of the wave for the fundamental mode is in the image uploaded.

Learn more about wavelength here: brainly.com/question/10728818

5 0
2 years ago
if a toaster oven uses 1000 J of electrical energy to produce 800 J of thermal energy, what is the percent efficiency of the toa
ArbitrLikvidat [17]

Answer:

80%

Explanation:

The thermal energy output by the oven is 800 J which is the useful energy that can be utilized for cooking.

The electrical energy input to the oven is 1000 J.

The efficiency of the oven =

(Useful energy output)/(Total energy input to the oven) x 100

=\frac{800}{1000}\times 100= 80\%

Hence, the efficiency of the oven is 80%.

3 0
4 years ago
A solar-powered car is traveling at constant speed around a circular track. what happens to the centripetal acceleration of the
Bingel [31]
The centripetal accelaration is increased by a factor of 4
6 0
4 years ago
Other questions:
  • A major artery with a cross sectional area of 1.00cm^2 branches into 18 smaller arteries, each with an average cross sectional a
    10·1 answer
  • Someone Please Help, Need this to pass
    8·1 answer
  • The electric potential in a certain region varies with position as V(x) = ax2 - bx + c, where a = 2.2 V/m2, b = 16.5 V/m, and c
    14·1 answer
  • Ultrasound with a frequency of 4.257 MHz can be used to produce images of the human body. If the speed of sound in the body is t
    12·1 answer
  • A 23-newton horizontal force westward and a 23-newton horizontal force eastward act concurrently on a 10-kilogram object on a fr
    6·1 answer
  • If you suspect your culture of bacteria has 25 x 107 cells per mL, what would you want the final dilution to be in order to end
    12·1 answer
  • What is the theoretical value for the speed of sound in a room at 24?
    14·1 answer
  • Osteoporosis is a condition that makes bones more
    12·1 answer
  • Convert 25 cm to km using the method of dimensional analysis
    11·2 answers
  • Why is the orbit of the telescope stable nonetheless? What otherforces need to be considered?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!