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
Novosadov [1.4K]
2 years ago
5

HELLO I NEED YOU HELP WITH THIS SCIENCE QUESTION NO LINKS!!!

Physics
1 answer:
sweet [91]2 years ago
8 0

the study of how matter and energy interact

the study of the natural world around us

the study of human bodies and how they move

You might be interested in
Two forces of magnitude 8N and 4N act at right angle​
serg [7]

Answer: 26.6

Explanation:

5 0
3 years ago
(b) A piece of wood of volume 0.6 m² floats in water. Find the volume
enot [183]

Answer:

Explanation:

Let the volume below water be v . Then

buoyant force = v d g where d is density of water , g is acceleration due to gravity

= v x 1000 x g

weight of wood piece = volume x density of wood x g

= .6 x 600 x g

for equilibrium while floating

buoyant force = weight

= v x 1000 x g  =  .6 x 600 x g

v = .36 m²

volume above water or volume exposed = .6 - .36

= .24 m²

When immersed completely ,

buoyant force = .6 x 1000 x 9.8

= 5880 N

weight of wood

=  .6 x 600 x g

= 3528 N

buoyant force is more than the weight . In order to equalise them for floating with full volume in water

weight required = 5880 - 3528

= 2352 N.

6 0
3 years ago
how many times does the kinectic energy of a car increase when traveling 60 mph as opposed to traveling 30 mph
Bumek [7]
The car at 60 kph has 9 times more kinetic energy than the car traveling at 20 kph. This assumes that both cars have the same mass. Kinetic energy depends on the square of thee speed so if one car is going 3 times faster, its kinetic energy will be 3^2 ( = 9 ) greater. The car going at 60 kph will have 4 times the KE of the car going at 30 kph ( again assuming that the cars have the same mass.)
3 0
3 years ago
Visible light passes through a diffraction grating that has 900 slits per centimeter, and the interference pattern is observed o
kobusy [5.1K]

Answer:

\Delta \lambda=14.3\ nm

Explanation:

It is given that,

The number of lines per unit length, N = 900 slits per cm

Distance between the formed pattern and the grating, l = 2.3 m

n the first-order spectrum, maxima for two different wavelengths are separated on the screen by 2.98 mm, \Delta Y=2.98\ mm = 0.00298\ m

Let d is the slit width of the grating,

d=\dfrac{1}{N}

d=\dfrac{1}{900\ cm}

d=1.11\times 10^{-5}\ m

For the first wavelength, the position of maxima is given by :

y_1=\dfrac{L\lambda_1}{d}

For the other wavelength, the position of maxima is given by :

y_2=\dfrac{L\lambda_2}{d}

So,

\Delta \lambda=\dfrac{\Delta y d}{l}

\Delta \lambda=\dfrac{0.00298\times 1.11\times 10^{-5}}{2.3}

\Delta \lambda=1.43\times 10^{-8}\ m

or

\Delta \lambda=14.3\ nm

So, the difference between these wavelengths is 14.3 nm. Hence, this is the required solution.

3 0
3 years ago
The igneous rocks which were deposited on the surface and then cooled are known as __________.
mr Goodwill [35]
The igneous rocks which were deposited on the surface and then cooled are known as extrusive. These rocks are a result of a magma reaching the surface of the Earth which cools the magma quickly. Examples are rhyolite, basalt, obsidian and andesite.
6 0
3 years ago
Other questions:
  • Derive an approximate formula for the mutual inductance of two circular rings of the same radius a, arranged like wheels on the
    6·1 answer
  • Sound waves move the most slowly through? solids liquids or gases
    10·2 answers
  • One problem with weight training as a way to improve overall health is that the results of a weight-training program are not mea
    7·2 answers
  • If the wavelength of orange light is 6 · 10-7 m, calculate its frequency. f = _______ Hz
    14·1 answer
  • When you burn natural gas in the laboratory, methane burns. What numbers fill in the blanks to balance this equation? ___CH4 + _
    13·2 answers
  • If the vertical posts supporting these wires divide the lines into straight 19.0 m segments, what magnetic force does each segme
    15·1 answer
  • A meteorologist tracks the movement of a thunderstorm with Doppler radar. At 8:00pm the storm was 55 mi northeast of her station
    11·1 answer
  • An object dropped from rest from the top of a tall building on planet x falls a distance d(t)18 left parenthesis t right parenth
    11·1 answer
  • The total mass of the train and its passengers is 750000kg. The train is traveling at a speed of 84m/s. The driver applies the b
    6·1 answer
  • I don’t not get anything to do with this question
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!