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
nadezda [96]
3 years ago
10

A car traveling on a straight road at 15.0 meters per second accelerates uniformly to a speed of 21.0 meters per second in 12.0

seconds. The total distance traveled by the car in this 12.0-second time interval is _______.(1) 36.0 m (3) 216 m(2) 180. m (4) 252 m
Physics
1 answer:
oksano4ka [1.4K]3 years ago
8 0
<h2>Option 3,  216 m is the correct answer.</h2>

Explanation:

We have initial velocity, u = 15 m/s

Time, t = 12 seconds

Final velocity, v = 21 m/s

We have equation of motion v = u + at

Substituting

                     21 = 15 + a x 12

                       a = 0.5 m/s²

Now we have equation of motion v² = u² + 2as

                           21² = 15² + 2 x 0.5 x s

                            s = 216 m

       Displacement = 216 m

Option 3,  216 m is the correct answer.

You might be interested in
What can always be said about a negatively-charged ion?
KiRa [710]

Answer: A negatively-charged ion always has more electrons than protons

Explanation:

First, we know that the elementary negative charge is the electron, while the positive one is the proton. Such that both have the same charge in magnitude, but a different sign. Such that if we have the same number of electrons and protons in an atom, the charge of this atom will be neutral.

And an ion is an atom with a different number of electrons and protons, so the charge of the atom is not neutral.

Then if we have a negatively-charged ion, the charge of this atom is negative. Then we must have a larger number of electrons (the negative ones) than protons (the positive ones)

Then the correct option is:

A negatively-charged ion always has more electrons than protons

5 0
3 years ago
Please help its URGENT!!
Greeley [361]

Answer:

1 D ,2 B ,5 C ,3 A ,4 E i dont know why you gotta have 20 words to answer it but yeah

6 0
2 years ago
Read 2 more answers
Some chlorine atoms have an atomic mass of 37, while others have an
lara [203]

Answer: D

Explanation: :) Just took the quizz

8 0
2 years ago
Read 2 more answers
I don't know what the answer is please help ...
Tems11 [23]
It doesn't work the same as the other because one is ultraviolet while the other is infrared.
7 0
3 years ago
Describe how sound waves move through different types of matter. Compare the speed at which sound moves through solids, liquids,
Andru [333]
Sound waves need different media in order to travel. This travels by the movement of the atom transferred to another up to its destination. The speed of sound is greatest in solids since the molecules of solid are closely packed together, followed by liquid and they are slowest in gases. 
7 0
3 years ago
Other questions:
  • Discuss how we are able to feel the sun's heat and see its brightness?
    5·2 answers
  • Lighting from the sun travels through space to earths atmosphere.
    9·1 answer
  • Which statement best defines work? A. Work is the time it takes to move an object once acted upon by a force. B. Work occurs whe
    10·2 answers
  • What color will a star be with a surface temperature of 5000–6000 K?
    15·2 answers
  • What is cos-^1(0.34)?<br> A. 19.9<br> B. 44.2°<br> C. 70.1°<br> D. 18.8°
    5·1 answer
  • Why there is tides in sea and ocean
    14·1 answer
  • When very electronegative atoms, like oxygen, bond to atoms with a lower
    9·2 answers
  • What is denser medium?​
    7·1 answer
  • A child's first bicycle has 12-inch tires. These tires have a 6-inch radius. How fa r does the bicycle move forward each time th
    10·1 answer
  • I am giving brainly to however answers first
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!