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
galina1969 [7]
3 years ago
14

The time it takes for a dragster to cross the finish line is unknown. The dragster accelerates from rest at 26 m/s2 for a quarte

r-mile (402 m). What is the final velocity of the dragster?
Physics
1 answer:
exis [7]3 years ago
7 0

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

{v}^{2} -  {v(0)}^{2} = 2.a.∆x

v = final \:  \: velocity

v(0) = the \:  \: velocity \:  \: in \:  \: the \:  \: rest \:  \: which \: \: is \:  \: zero \\

a = acceleration

∆x = covered \:  \: distance

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

{v}^{2} -  ({0})^{2} = 2 \times 26 \times 402

v =  \sqrt{2 \times 26 \times 402}

v =  \sqrt{20904}

v = 144.58 \:  \:  \frac{m}{s}

Done...

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

You might be interested in
You blow across the open mouth of a test tube and produce the fundamental standing wave of the air column inside the test tube i
WITCHER [35]

Answer:

B: 980 Hz

Explanation:

8 0
3 years ago
Read 2 more answers
Imagine that someone is sitting down to enjoy a cup of coffee or hot chocolate. Use your experiences to describe how heat flows
Reika [66]

The heat flows into my body and I start with a warming feeling going down my throat as it starts there I get this warm feeling and I break out in a coldsweat from consuming a warm drink a cold drink will help cool me down :

Explanation:

If drink warm will make u warm drinking cool will make u cool down faster

8 0
3 years ago
Read 2 more answers
A rocket accelerates by burning its onboard fuel, so its mass decreases with time. Suppose the initial mass of the rocket at lif
Serggg [28]

Answer:

Height of the rocket be one minute after liftoff is 40.1382 km.

Explanation:

v(t)=-gt-v_e\times \ln \frac{m-rt}{m}

v = velocity of rocket at time t

g = Acceleration due to gravity =9.8 m/s^2

v_e = Constant velocity relative to the rocket = 2,900m/s.

m = Initial mass of the rocket at liftoff = 29000 kg

r = Rate at which fuel is consumed = 170 kg/s

Velocity of the rocket after 1 minute of the liftoff =v

t = 1 minute = 60 seconds'

Substituting all the given values in in the given equation:

v(60)=-9.8 m/s^2\times 60 s-2,900m/s\times \ln (\frac{29,000 kg-170 kg/s\times 60 s}{2,9000 kg})

v(60) = 668.97 m/s

Height of the rocket = h

Velocity=\frac{Displacement}{time}

668.97 m/s=\frac{h}{60 s}

h=668.97 m/s\times 60 s=40,138.2 m = 40.1382 km

Height of the rocket be one minute after liftoff is 40.1382 km.

4 0
3 years ago
Describe how the gravitational force between 2 objects depends on the mass of the objects and the distance between them. your an
ollegr [7]
The strength of the gravitational force between two objects depends<span> on </span>two<span>factors, </span>mass<span> and </span>distance<span>. the </span>force<span> of gravity the </span>masses<span> exert on each other. If one of the </span>masses<span> is doubled, the </span>force<span> of gravity </span>between<span> the </span>objects<span> is doubled. increases, the </span>force<span> of gravity decreases</span>
3 0
3 years ago
I forgot this someone help
dexar [7]

Answer:

A. water + carbon dioxide + sunlight = oxygen + <u>glucose </u><u>!</u>

6 0
2 years ago
Other questions:
  • The speed at which the package hits the ground is really fast! If a package hits the ground at such a speed, it can be crushed a
    7·1 answer
  • A cyclist rode an average speed of 10 miles per hour for 15 miles how long was the ride
    10·1 answer
  • What makes up the unit joules?​
    13·1 answer
  • What type of energy is biomass energy? <br><br> A) kinetic energy <br> B) potential energy
    13·1 answer
  • An object has an acceleration of 12.0 m/s/s. The mass of the object is doubled while the net force on the object is held constan
    7·1 answer
  • What is an inexpensive, portable, and common way to assess body fat in the fitness industry?
    5·1 answer
  • Three balls are thrown off the top of a building, all with the same speed but with different launch angles (position is given in
    9·1 answer
  • a force pushes the cart for 1 s, starting from rest. to achieve the same speed with a force half as big, the force would need to
    12·1 answer
  • 44. A mediados de la década de 1960, la McGill University lanzó sensores metereológicos de gran altitud al dispararlos desde un
    13·1 answer
  • A 0.5kg baseball experiences a 10n force for a duration of 0.1s. what is the change in?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!