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
Fiesta28 [93]
2 years ago
10

The spectra for elements are _____.

Physics
1 answer:
mina [271]2 years ago
4 0

Answer:

B. Same for a chemical family

You might be interested in
Are moons 1-4 waxing are waning ?
solong [7]

Answer:

I want to help you but i cant.

Explanation:

please provide a screenshot or photos of moons 1-4

3 0
2 years ago
A parachutist falls 50.0 m without friction. When the parachute opens, he slows down at a rate of 61 m/s^2. If he reaches the gr
ira [324]

Answer:

55.66 m

Explanation:

While falling by 50 m , initial velocity u = 0

final velocity = v , height h = 50 , acceleration g = 9.8

v² = u² + 2gh

= 0 + 2 x 9.8 x 50

v = 31.3 m /s

After that deceleration comes into effect

In this case final velocity v = 17 m/s

initial velocity u = 31.3 m/s

acceleration a = - 61 m/s²

distance traveled h = ?

v² = u² + 2gh

(17)² = (31.3)² - 2x 61xh

h = 690.69 / 2 x 61

= 5.66 m

Total height during which he was in air

= 50 + 5.66

= 55.66 m

3 0
2 years ago
If its wavelength were doubled, its energy would be If its wavelength were doubled, its energy would be 4E. 2E. 12E. 14E.
ANEK [815]

The wavelength was doubled, and its energy will be increased by 4 times.

looking at the formula

energy E = MC^2

also, c = \lambda \times \nu

hence it is clear from above that energy is directly proportional to the square of the wavelength.

hence, The wavelength was doubled, and its energy will be increased by 4 times.

<h3>What is Wavelength?</h3>
  • The distance over which a periodic wave's shape repeats is known as the wavelength in physics.
  • It is a property of both traveling waves and standing waves as well as other spatial wave patterns. It is the distance between two successive corresponding locations of the same phase on the wave, such as two nearby crests, troughs, or zero crossings.
  • The spatial frequency is the reciprocal of the wavelength. The Greek letter lambda is frequently used to represent wavelength.
  • The term wavelength is occasionally used to describe modulated waves, their sinusoidal envelopes, or waves created by the interference of several sinusoids.

To learn more about wavelength with the given link

brainly.com/question/13533093

#SPJ4

5 0
1 year ago
Does wax paper, aluminum foil, or plastic wrap cause more friction
Levart [38]
Yes i does. they cause more friction <span />
4 0
3 years ago
Read 2 more answers
If my cylinder of air lasts 60 minutes while I am at the surface breathing normally, assuming all else is the same, how long wil
AfilCa [17]

Answer:

Explanation:

Let the volume of air be V. at atmospheric pressure, that is 10⁵  Pa

At 20 m below surface pressure will be

atmospheric pressure + hdg

10⁵ + 20 x 9.8 x 1000 = 2.96 x 10⁵Pa

At this pressure volume V becomes V/ 2.96  

This volume will last 1/2.96 times  time that is 60/2.96 = 20.27 minutes.

8 0
3 years ago
Other questions:
  • A car of mass 1800 kg collides with a truck of mass 5200 kg, and just after the collision the car and truck slide along, stuck t
    7·1 answer
  • What is the leading hypothesis for the origin of short gamma-ray bursts?
    5·1 answer
  • What is the main factor that prevents the growth of tropical plants in the northern part of the United States?
    11·1 answer
  • You are given a long length of string and an oscillator that can shake one end of the string at any desired freqeuency
    6·1 answer
  • For your senior project, you would like to build a cyclotron that will accelerate protons to 10% of the speed of light. The larg
    11·1 answer
  • Copy of AL
    15·1 answer
  • What change of state occurs during vaporization? liquid to gas gas to liquid solid to liquid liquid to solid
    8·2 answers
  • You apply a net force on a soccer ball of 15 N. If the acceleration it has is 5 m/s2 what is the mass of the ball?​
    12·1 answer
  • In this activity, you will analyze the motion of a cart being pulled up an inclined plane at a constant speed. The angle of the
    13·1 answer
  • A wheelchair moves upward on a 7.1 degree ramp at a speed of 20km/h what is the horizontal velocity
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!