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
yulyashka [42]
3 years ago
7

A light beam shines through a slit and illuminates a distant screen. The central bright fringe on the screen is 1.00 cm wide, as

measured between the dark fringes that border it on either side. Which of the following actions would decrease the width of the central fringe? ( There may be more than one correct answer)
a- increase the wavelength of the light
b-decrease the wavelength of the light
c-increase the width of the slit
d-put the apparatus all under water
Physics
1 answer:
Pachacha [2.7K]3 years ago
4 0

Answer:

B, C, D.

Explanation:

You might be interested in
Cosine law can be applied when .....................
jarptica [38.1K]

Answer:

<em>Two</em><em> </em><em>sides</em><em> </em><em>and</em><em> </em><em>angle</em><em> </em><em>between</em><em> </em><em>them</em><em> </em><em>is</em><em> </em><em>given</em><em> </em>

3 0
2 years ago
You want to determine whether the mass of an object attached to a parachute affects the time it takes to fall to the ground. In
hammer [34]

Answer:

The Answer is below!!

Explanation:

The larger the area of the parachute, the more air needs to be pushed out of the way, and so the slower it descends. the independent variable is the shape of the parachutes' canopies. The dependent variable is the drop speeds of the parachutes. How long does it take for the parachutes to reach the ground? Measure this using a stopwatch.

Hope I Helped!!

:)

5 0
2 years ago
2. Can you rearrange the equation F = kx to get k on one side of the equation
Bumek [7]

k = f/x

x = f/k

( / means divide )

5 0
3 years ago
Physics questions please help me
Ahat [919]
Hi,Find  answers from Task 5

1.(X+4)+(X)+(X+4)+(X)=50cm

4x+8=50cm

4x=42

X=10.5cm

Length=10.5+4=14.5cm

Width=10.5cm

Area= length × width=(10.5/100) × (14.5/100) =0.0152m2

2. Volume of a sphere= 4/3 ×π×r³

4/3 ×π×r³=3.2×10^-6 m³

r³=3.2×10^-6 m³/1.33×π

r³=7.64134761e-7

r=0.00914m

Surface area of the blood drop= 4πr²

=4×3.142×0.00914×0.00914=0.00105m²

3.

Equation of an ideal gas     = PV =n RT  

Equation for pressure, = P= n RT/V

Equation for the volume of an ideal gas= V= n RT/P

If the volume of gas doubles ,V(new)=  2n RT/P

Equation for temperature of an ideal gas, T = PV/n R

If temperature of gas triples, T (new)= 3PV/n R

New Equation for Pressure, = n× R× (3PV/n R)/(2n RT/P)

Pressure factor increase= P(new)/P(old)  ={ n× R× (3PV/n R)/(2n RT/P)}/{ n RT/V}

=3PV²/2n RT
5 0
2 years ago
A pure substance that cannot be broken down into any other substances by chemical or physical means is a (n)
dem82 [27]
It means it is an element.
4 0
3 years ago
Read 2 more answers
Other questions:
  • Q3. A bridge is built without expansion gaps.
    8·1 answer
  • HELP PLEASE!<br> write the equation for calculating relative velocity in one dimensional.
    15·1 answer
  • Jenna can run 9 km in 1 hour. If she runs at that speed for 30 minutes, how far will she go? *
    8·1 answer
  • Which of the following is the best definition of autoimmune disease?
    10·1 answer
  • What causes an atom to be neutral? Equal number of protons and neutrons Equal distance between the nucleus and electrons Equal n
    10·1 answer
  • is a constant related to the size and composition of the ball as well as the viscosity of the syrup. Find the rate at which grav
    8·1 answer
  • A group of tourists drives through a state park in Maine. While arguing about whether the animal they've just seen is an Elk or
    8·1 answer
  • A peregrine falcon dives at a pigeon. The falcon starts downward from rest with free-fall acceleration. If the pigeon is 56.0 m
    9·2 answers
  • Continental drift is______?
    8·1 answer
  • A boat travels at 17mi/h for 1.50h. How far does the boat travel?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!