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
sashaice [31]
3 years ago
7

Which is faster, light or sound? Explain.

Physics
2 answers:
Lemur [1.5K]3 years ago
5 0
Light travels faster than sound ,because sound can only travel waves.
Murrr4er [49]3 years ago
3 0
My answer is light because it goes 299,792 km per second and sound goes 0.332 km per second
You might be interested in
Reading the temperature of a solution by using a thermometer is an example of a(n) ________.
blsea [12.9K]

Answer:

B. Observation

Explanation:

Using a thermometer to read the temperature of a solution is tantamount to the making an observation.

Observation are recorded using our senses of sight, taste, earing, feeling etc or by the use of instrument.

  • Through observation, data is usually collected to make inferences about an experiment.
  • An observation leads to the formulation of a hypothesis which is scientific guess that leads to experimental designs.
  • Conclusions are drawn from the information of data obtained from an experiment.
4 0
2 years ago
The block in the figure below has a mass of 5.1 kg and it rests on an incline of angle . You pull on the rope with a force F = 3
viktelen [127]

42.9°

Explanation:

Let's assume that the x-axis is aligned with the incline and the positive direction is up the incline. We can then apply Newton's 2nd law as follows:

x:\;\;\;\;F - mg\sin{\theta} = 0\;\;\;\;

\Rightarrow mg\sin{\theta} = F

Note that the net force is zero because the block is moving with a constant speed when the angle of the incline is set at \theta. Solving for the angle, we get

\sin{\theta} = \dfrac{F}{mg}

or

\theta = \sin^{-1}\left(\dfrac{F}{mg}\right)

\;\;\;=  \sin^{-1}\left[\dfrac{34\:\text{N}}{(5.1\:\text{kg})(9.8\:\text{m/s}^2)}\right]

\;\;\;=42.9°

6 0
2 years ago
Pa help po science po yan pang grade 7
AveGali [126]

Answer:

table 1:

1. 100/15 = 6.7 m/s

2. 100/12 = 8.3 m/s

3. 100/9 = 11.1 m/s

table 2:

1. 100/8 = 12.5 m/s

2. 100/6 = 16.7 m/s

3. 100/4 = 25 m/s

Explanation:

8 0
3 years ago
What is the formula for calcium chloride
Naddik [55]

The correct answer is - CaCl2

The calcium chloride is a salt, an inorganic compound. Its formula is CaCl2, with Ca being calcium, Cl being chloride, and the number 2 representing the number of chloride molecules.

The calcium chloride is a white colored crystalline solid when it is at room temperature, and it is highly soluble in water, acetone, and acetic acid. It has a molar mass of 110.98 g/mol, density of 2.15 g/cm³, and melting point at 772 °C.

6 0
3 years ago
Read 2 more answers
On the coordinate plane below, draw the vector that goes from (0,0) to (2,3)
Vladimir [108]

Simply draw the vector with the given coordinates.

7 0
3 years ago
Other questions:
  • Explain why fitness should be a lifetime “road trip”, instead of a one-time destination?
    12·1 answer
  • The sound level at a distance of 2.30 m from a source is 115 dB. At what distance will the sound level have the following values
    15·1 answer
  • How does friction affect speed?
    9·1 answer
  • A 3.00-kg pendulum is 28.84 m long. what is its period on earth?
    12·1 answer
  • Rutherford's gold-foil experiment led him to conclude that
    11·1 answer
  • Explain why sedimentary rocks are found as a veneer covering large areas of the continental igneous rocks
    13·2 answers
  • Diesel engines burn as much as 30% less fuel than gasoline engines of comparable size, as well as emitting far less carbon dioxi
    5·1 answer
  • People, especially adults, are inactive because of "passive" modes of transportation.
    7·1 answer
  • I need ideas of what kind of simple motor i can build and how i can build it. The simple motor MUST spin without using your own
    12·2 answers
  • Drag each label to the correct location on the table. sort the processes based on the type of energy transfer they involve. cond
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!