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
fredd [130]
3 years ago
15

HELP PLEASE

Physics
1 answer:
Alex73 [517]3 years ago
5 0
<h3><u>AnswEr :</u></h3>

The final velocity of it travels a distance of 0.5 m while accelerating is v = 300 m/s.

\\

<h3><u>Step-by-step </u><u>explanation </u><u>:</u></h3>

\\

<h3><u>GivEn </u><u>:</u></h3>

\\

  • Initial velocity (u) = 0 m/s

\\

  • Acceleration (a) = 90000 m/s²

\\

  • Distance (s) = 0.5 m

\\

<h3><u>To find :</u></h3>

\\

  • Final velocity (v) = ?

\\

<h3><u>SoluTion :</u></h3>

\\

⠀⠀⠀⠀Let's solve the question by using the equations of motion. It is given by,

\\

\star \: { \boxed{ \sf{ \purple{{v}^{2}  =  {u}^{2}  + 2as}}}}

\\

\:  \:  \:  \:  \:  \:  \:  \:  \:   \:  \: { \underline{ \sf{Substituting \:  the \:  values,  }}}

\\

: \implies \sf \:  \:  \: {{v}^{2}  =  {u}^{2}  + 2as} \\  \\  \\

: \implies \sf \:  \:  \:  {v}^{2}  = ( {0)}^{2} + 2(0.5)(90 000) \\  \\  \\

: \implies \sf \:  \:  \:  {v}^{2}  = 90 000 \\  \\  \\

: \implies \sf \:  \:  \:{ \boxed{ \bf{ \red{ v= 300 m/s }}}} \:  \bigstar \\  \\

<u>Therefore, The</u><u> final velocity of it travels a distance of 0.5 m while accelerating is v = 300 m/s</u><u> </u><u>.</u>

~TheInsaneGirl

You might be interested in
Ilya and Anya each can run at a speed of 8.90mph and walk at a speed of 3.80mph . They set off together on a route of length 5.0
jekas [21]

Answer:

a) t = 56.34 minutes

b) v = 5.32mph

c) t = 47.22 minutes

d) v = 6.35 mph

Explanation:

Given;

The speed of Ilya and Anya are

Run = 8.90mph

Walk = 3.80mph

distance = 5.00 miles

a) anya walk half the distance and run half the distance.

Speed = distance/time

time = distance/speed

t1 = 5×0.5/3.80 = 0.658hr

t2 = 5×0.5/8.90 = 0.281hr

t = t1 + t2 = 0.658+0.281 = 0.939hr × 60minutes/hr

t = 56.34 minutes

b) average speed = total distance/total time taken

v = 5.00miles/0.939hr = 5.32mph

c) Ilya walk half the time and run half the time.

t1 = t2 = t/2

Distance = speed × time

Substituting the values.

5 = 3.80(t/2) + 8.90(t/2)

5 = 12.70(t/2)

t = 10/12.70

t = 0.787 hr × 60 minutes/hr

t = 47.22 minutes

d) average speed = 5miles/0.787hr

v = 6.35 mph

5 0
3 years ago
Which is the average acceleration during the time Interval 0 seconds 10 seconds?
weqwewe [10]
Average acceleration = (change in speed) / (time for the change)

In this case . . .

Average acceleration = (speed at the end - speed at the beginning)/10sec.

We can't be any more specific without knowing the difference
between the beginning speed and the ending speed. 
3 0
3 years ago
Which statement describes a controlled experiment?
olga_2 [115]

Answer:

In a controlled experiment, an independent variable (the cause) is systematically manipulated and the dependent variable (the effect) is measured; any extraneous variables are controlled. The researcher can operationalize (i.e. define) the variables being studied so they can be objectivity measured.

7 0
4 years ago
Ordinarily, material presented ________ is usually the most difficult to remember due to interference
Brums [2.3K]

Memorizing items on a list are enabled by the effects of primacy and

recency.

Ordinarily, material presented <u>in the middle of a list </u> is usually the most

difficult to remember due to interference.

Reasons:

When memorizing a list of items, due to the primacy effect, the information

at the beginning of the list are given importance, in the brain, due to their

many attributes, which may be due to them being;

  • The first item
  • Definition of the task (assignment of importance level)
  • Idea of what to expect (preparation of the mind)

Also the last items on the list are recalled by the effect known as recency,

which is probably due to the tendency to store items in the short term

memory.

Therefore, in the course of memorizing a list,  the first items on the list can

be stored in the long-term memory. The items that comes last in the

list are stored in the short-term memory, while the material presented in

the middle of the list are not allocated to a storage, and are usually

the most difficult to remember due to interference, by other items that

tend to come up during the retrieval process, from the long-term memory.

<em>(Rearranging the list can aid total recall)</em>

<em />

<em />

Learn more here:

brainly.com/question/15180534

<em>The possible question options as obtained from a similar question online, are;</em>

  • <em>At the beginning</em>
  • <em>Last</em>
  • <em>At the end</em>
  • <em>In the middle of a list</em>
5 0
2 years ago
A car of mass 1200kg moving 90km/hr is brought to rest over a distance of 20m. calculate breaking force.​
patriot [66]

Answer:

-18,750N

Explanation:

90x1000

-------------

3600

u=25m/s

v=0m/s

v^2=u^2+2as

v=0

=625+(2×a×20)

625+40a

-625=40a

a= -15.625 m/s^2

F=ma

=(1200)(-15.625)

= -18,750N

4 0
2 years ago
Other questions:
  • Uranium-235 has 92 protons. How many neutrons does it have?
    9·2 answers
  • (blank) is the thermal energy that flows from one substance to another when the substances differ in temperature
    14·2 answers
  • How far (in meters) does a person travel in coming to a complete stop in 40 ms at a constant acceleration of 60g?
    13·1 answer
  • Why are petroleum and natural gas deposits highly sought after
    6·1 answer
  • What are the large, dark basaltic plains on the moon called?
    5·2 answers
  • Looking down on a Northern Hemisphere extratropical cyclone, surface winds blow ________ about the center. a.counterclockwise an
    11·1 answer
  • You are in a small spacecraft that has no windows traveling through space. The craft is accelerating and you have a bathroom sca
    15·1 answer
  • View the photo below, read the passage, and answer the question.
    7·1 answer
  • A mass of 0.01 kg of steam at a quality of 0.9 is contained in the cylinder as shown in Figure 1 below. The spring just touches
    5·1 answer
  • In an investigation, a team of scientists observes ants in several locations. Some locations have hard, dense soil, while other
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!