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
zimovet [89]
3 years ago
13

Which of the following is all matter made of?

Physics
1 answer:
masha68 [24]3 years ago
5 0

The answer to this is C.

You might be interested in
Lamar has been running sprints to prepare for his next football game.He has found that he can maintain his maximum speed for 45
Svet_ta [14]

Answer:

Kindly check explanation

Explanation:

Length of race = 5km

Maximum speed = 45 yards

Converting from yards to kilometer :

1km = 1093.613 yards

x = 45 yards

(1093.613 * x) = 45

x = 45 / 1093.613

x = 0.0411480 km

Where x = maximum length for which he can maintain his maximum speed expressed in kilometers.

Therefore, with the available information, it can be concluded that Lamar cannot maintain his maximum speed for the entire 5km race and will only be able maintain his maximum speed for 0.0411 kilometers.

5 0
3 years ago
You are creating waves in a rope by shaking your hand back and forth. Without changing the distance your hand moves, you begin t
scoundrel [369]

Answer:

<u>Amplitude - remains the same</u>

<u>Frequency - increases</u>

<u>Period - decreases</u>

<u>Velocity - remains the same.</u>

<u />

Explanation:

The amplitude of the wave remains the same since you are not changing the distance your hand moves and the amplitude of the wave depends on how much distance your hand covers while moving.

The frequency of your wave increases since now you are moving your hand more number of times in the same period i.e. your hand is moving faster in one second. So, the frequency of your wave increases.

The period is the time taken by the wave to travel a certain distance. Since your hand is now moving faster, the wave will travel faster and will take less time to cover the same distance hence, we can say that its period will decrease.

The velocity of a wave depends on the medium in which it is travelling. Your wave was previously travelling in air and the new wave is also travelling in the same medium so the velocity of the wave remains unchanged.

7 0
3 years ago
How did the astronomy of hipparchus and ptolemy violate the principles of early greek philosophers?
Mariana [72]

Answer: Hipparchus & Ptolemy believed sun and moon travel around circles with Earth in the middle (geocentric) while Plato and Aristotle believed Perfect unchanging heavens

Explanation: thus hipparchus and ptolemy violate early greek philosophy

8 0
3 years ago
A single roller-coaster car is moving with speed v0 on the first section of track when it descends a 4.7-m-deep valley, then cli
yan [13]

Explanation:

From the curve given in the attachment,

a) minimum speed v0 required if the car is to travel beyond the top of the hill

climb to the top = 5.4 m

Therefore, V_0=\sqrt{2gh}

V_0=\sqrt{2(9.81)(5.4)} =  10.29 m/s

b) No, we cannot affect this speed by changing the depth of the valley to make the coaster pick up more speed at the bottom as this speed does not depend upon depth of the valley.

5 0
3 years ago
Although all sports require a person to be in shape to some degree, some sports demand more from the body. Which sport does not
RSB [31]

Answer:

I  think golf does not demand high level of physical fitness. A golfer just need be skillful and able to play under pressure. In terms of physical exercise i think he/she just need to do some muscle stretches.

Explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • Why would it be very hard to land aspeceship on Saturn?
    15·1 answer
  • If the velocity of an object changes from 15 m/s during a time interval of 4s what is the acceleration of the object
    7·1 answer
  • Danilo is sliding down a slide. What forces are acting on him as he slides
    6·2 answers
  • What do we call the tiny core at the center of an atom, containing most of the atom's mass and all of its positive charge?
    6·2 answers
  • If the balloon takes 0.19 s to cross the 1.6-m-high window, from what height above the top of the window was it dropped?
    12·1 answer
  • At which location could you place the south pole of a bar magnet so that it would be pulled toward the magnet shown?
    14·1 answer
  • A revolution can also be called _____. Select all that apply.
    9·2 answers
  • (6 points) A cylinder has a radius of 12 mm and a length of 2.5 m. It is made of steel with a thermal conductivity of LaTeX: 53.
    6·1 answer
  • He's 76.2 W lightbulb uses 66.2 J of electrical energy every second. However, only 4.9 J of electrical energy is converted into
    8·1 answer
  • A saucepan is used to heat 1 litre (1kg) of water. If 180,000) of heat are added and the initial temperature was 10 °C. What tem
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!