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
kykrilka [37]
3 years ago
8

Help:choose the correct statement plz​

Physics
2 answers:
alexira [117]3 years ago
7 0

Answer:

Second one

Explanation:

Lying on the floor is something you can do with the least amount of energy

Anna11 [10]3 years ago
5 0

Answer:

C A D B

Explanation:

You might be interested in
Light incident upon a pane of glass slows down in passing through the glass, Does it emerge at a slower speed or at its initial
Simora [160]

Answer:

It will emerge at its initial speed not a slower speed.

Explanation:

It will emerge at the initial speed because the medium at the point of emergence is the same as the medium before incidence.

Light moves at a constant speed in any particular medium. Hence, the speed of light in air is constant in air and the speed of light in glass is constant in glass.

4 0
3 years ago
What measures the amount of displacement in a transverse wave
MAVERICK [17]
Unlike a longitudinal wave, a transverse wave moves about, perpendicular to the direction of propagation. The particles in a transverse wave do not travel along the direction of propagation, but only oscillate up and down on its equilibrium position. With this, the displacement can be determined by measuring (in the case of electronic waves, using an oscilloscope or spectrum analyzer) and setting the desired units to measure the wave in.
4 0
3 years ago
Suppose an electrical wire is replaced with one having every linear dimension doubled (i.e. the length and radius have twice the
saul85 [17]

Answer:

The wire now has less (the half resistance) than before.

Explanation:

The resistance in a wire is calculated as:

R=\alpha \frac{l}{s}

Were:

R is resistance

\alpha is the resistance coefficient

l is the length of the material

s is the area of the transversal wire, in the case of wire will be circular area (s=\pi r^{2}).

So if the lenght and radius are doubled, the equation goes as follows:

R=\alpha \frac{l}{\pi r^{2} } =\alpha \frac{2l}{\pi {(2r)}^{2} } =\alpha \frac{2l}{\pi 4 {r}^{2} }=\frac{1}{2} \alpha \frac{l}{\pi r^{2} }

So finally because the circular area is a square function, the resulting equation is half of the one before.

7 0
3 years ago
Heat energy can be transferred from a source to a receiver by I. radiation. II. convection. III. conduction. A.
nadya68 [22]
It can be transferred by I, II, and III




Hope this helps ! :}
7 0
3 years ago
Read 2 more answers
Pick the correct answer
Marat540 [252]

The answer is A. Photosynthesis is caused when plants trap light energy in their leaves and use that energy to change water and carbon dioxide into glucose. Hope this helps :)

3 0
2 years ago
Other questions:
  • "Today you will use this chart to help you identify some common minerals," instructed Mr. Grant, Jimmy's teacher. Each group of
    15·2 answers
  • What is a concave lens?
    15·1 answer
  • A computer monitor accelerates electrons and directs them to the screen in order to create an image. If the accelerating plates
    8·1 answer
  • A disk-shaped merry-go-round of radius 2.13 m and mass 175 kg rotates freely with an angular speed of 0.651 rev/s. A 55.4 kg per
    13·1 answer
  • Why do buildings on permafrost have potential structural issues?
    10·2 answers
  • Which type or types of motion is particle motion in surface waves?
    10·1 answer
  • By what factor must the amplitude of a sound wave be decreased in order to decrease the intensity by a factor of 3?
    9·1 answer
  • Ann and Beth are measuring mass of an object, Ann reports a mass of 6 g while Beth obtains 6.0 g what are the range of uncertain
    11·1 answer
  • Which of these is NOT a line on the tennis court?
    10·2 answers
  • Why solid keep their shape?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!