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
Volgvan
3 years ago
11

A bicyclist, initially at rest, begins pedaling and gaining speed steadily for 4.00s during which she covers 34.0m. What was her

final speed?
Physics
1 answer:
GalinKa [24]3 years ago
8 0

Answer:

17.0 m s^-1

Explanation:

This question can be answered using suvat equations: (I'm assuming you know what these are)

s = 34.0 m

u = 0

v = ?

a = N/A

t = 4.00s

The only suvat equation that doesn't contain "a" is s = (u+v/2)t.

Make "v" the subject so v = 2s/t.

v = (2 x 34.0)/4.00 = 17 m/s

You might be interested in
Which of these BEST describes the term ecliptic? A. the circle where "Earth meets the sky" B. the change in azimuth and altitude
jeyben [28]
I'll say B ....hope that helps...
4 0
3 years ago
Read 2 more answers
Read the list of phrases from the article.
ICE Princess25 [194]

Answer:

(D)

to establish an understanding of key concepts relating to population biology

Explanation:

Thats what I would go with but I didn't read the article so I don't know what context was used. Good luck! :)

8 0
3 years ago
which drawing below represents the electric field surrounding two objects that have equal magnitude changes of opposite polarity
Fantom [35]

Answer:

the 3rd one

Explanation:

j cause I think so

8 0
2 years ago
A soccer player carries the ball for a distance of 40.0 m in the direction 42.0° west of south. find the westward component of t
Maksim231197 [3]

Actually what the problem meant about the westward component of the ball’s displacement is the horizontal component of the displacement. To help us better understand the problem, I attached a figure of the situation.

We can see from the figure that to solve for the value of the horizontal component, we have to make use of the sin function. That is:

sin θ = side opposite to the angle / hypotenuse of the triangle

sin 42 = x / 40 m

x = (40 m) sin 42

x = 26.77 m

 

Therefore the ball has a westward displacement of about 26.77 m

3 0
3 years ago
A clock moves past you at a speed of 0.9 c. How much time passes for you for each second that elapses on the moving clock?
Zigmanuir [339]

Answer:

Explanation:

Time dilation formula is

T = T₀ / √ 1-v²/c²

T₀ is time elapsed in moving reference , T time elapsed in stationary reference.

Here T₀ = 1 second

T = 1/√ 1-0.9² = 1/.4358 = 2.3 second

So 2.3 second will pass for each second on moving reference.

6 0
3 years ago
Other questions:
  • I WILL GIVE BRAINLIEST TO WHOEVER IS CORRECT.
    11·2 answers
  • A force does 30000 J of work along a distance of 9.5m. Find the applied force.
    8·1 answer
  • Which trait is determined entirely by heredity ?
    14·2 answers
  • How does a swimmers form affect the kinetic and potential energy’s?
    6·1 answer
  • Does mass affect the final velocity of an object if the object begins with a high initial velocity? Why or why not?
    9·1 answer
  • Two cars start from rest and begin accelerating, one at 10m/s210m/s2 and the other at 12m/s212m/s2. How long will it take for th
    10·1 answer
  • Look at the graph above. It shows how three runners ran a 100 meter race
    5·2 answers
  • According to Newton's law of universal gravitation, which of these objects would have the strongest gravitational force?
    7·2 answers
  • If a load of snow contains 3 tons it will weigh how many pounds
    9·1 answer
  • If 2 ma of current flow in your mp3 player, how long will it take for 1 c of charge to flow?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!