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
morpeh [17]
3 years ago
9

Which is of the following is the best example of kinetic energy? A flagpole standing in a courtyard A motorcycle speeding up on

the highway A swimmer getting ready to dive into a pool A turtle sunning itself on a big rock
Physics
1 answer:
Igoryamba3 years ago
5 0
A motorcycle speeding up on the highway because kinetic involve movement
You might be interested in
A well-trained athlete can run 400m in 47s, what is the athlete’s velocity?
AnnZ [28]

Answer:

8.51 m/s

Explanation:

Velocity = Displacement/Time

Velocity = 400 m ÷ 47 s

<u>Velocity</u><u> </u><u>=</u><u> </u><u>8</u><u>.</u><u>5</u><u>1</u><u> </u><u>m</u><u>/</u><u>s</u>

7 0
2 years ago
A box is pushed horizontally with constant speed across a rough horizontal surface.
Natasha_Volkova [10]

Answer:

what is the answers? so i can't answer.

Explanation:

6 0
3 years ago
What is the critical angle of a light beam passed from a medium (n=2) to a medium (n=1.2)?
sertanlavr [38]

Answer:

θ_c = 36.87°

Explanation:

Index of refraction for index medium; n_i = 2

Index of refraction for Refractive medium; n_r = 1.2

Formula to find the critical angle is given;

n_i(sin θ_c) = n_r(sin 90)

Where θ_c is critical angle.

Thus;

2 × (sin θ_c) = 1.2 × 1

(sin θ_c) = 1.2/2

(sin θ_c) = 0.6

θ_c = sin^(-1) 0.6

θ_c = 36.87°

8 0
3 years ago
Hi how do i run faster
Andrei [34K]

Answer:

Creatine is a great option , its not gonna help long term running ; but a great boost when you first start the run/jog.

Now to run faster you have to build great endurance and that is done through constant exercise running and stamina work outs such as sports , sprints calistetics etc.

Explanation:

Its not a simple 1 time thing and your suddenly , it takes drive and motivation !

Hope i was able to help you out ! Have a great day :)

7 0
2 years ago
A wire of Nichrome (a nickel-chromium-iron alloy commonly used in heating elements) is 1.3 m long and 1.6 mm2 in cross-sectional
fredd [130]

Answer: 1.3 *10^6 Ω*m

Explanation: In order to explain this problem we have to use the following expression for the resistence:

R=L/(σ*A) where L and A are the length and teh area for the wire, respectively. σ is the conductivity of teh Nichrome.

Then, from mteh OHM law we have V=R*I so R=V/I=2/3.2=0.625 Ω

Finally we have:

σ=L/(R*A)=1.3/(0.625*1.6*10^-6)=1.3*10^6 Ω*m

5 0
3 years ago
Other questions:
  • Which of the following are equal to -40°F?
    6·2 answers
  • What is the intermingling of one substance within another
    9·1 answer
  • Electromagnetic waves are different from other types of waves because they can travel through?
    6·2 answers
  • A naughty squirrel jumps from a tree limb onto a birdfeeder. The tree limb is 4.5 m above the ground and the top of the birdfeed
    7·1 answer
  • Consider a basketball player spinning a ball on the tip of a finger. If a player performs 1.91 J1.91 J of work to set the ball s
    9·1 answer
  • In order for two objects to have the same temperature, they must a. be in thermal equilibrium.
    12·1 answer
  • When an object (like a ball) falls, some of its _____ energy changes to _____ energy, due to the law of conservation of energy
    13·1 answer
  • Please select the word from the list that best fits the definition
    6·2 answers
  • What is the chemical formula for magnesium sulfide?
    12·1 answer
  • Define pressure and enlist its various units
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!