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
Valentin [98]
2 years ago
15

If runner A is running at 7.50 m/s and runner B is running at 7.90 m/s, how long will it take runner B to catch runner A if runn

er A has a
55.0-m head start?
Physics
1 answer:
yaroslaw [1]2 years ago
3 0

Answer:

t= 137.5 s

Explanation:

So if we are wanting to figure out how long it takes runner B to catch runner A. we must first set the slope of each runner equal to one another

<u>Slopes:</u>

Runner A:    y = 7.50x + 55

Runner B:    y = 7.90 x

sooooo

  7.50 x + 55 = 7.90 x

- 7.50 x          - 7.50 x

 55 = .40 x

55/.40 = .40 x / .40

x = 137.5 s

t= 137.5 s

7.50 * 137.5 + 55 =1086.25 m

7.90 * 137.5 =  1086.25 m

You might be interested in
What is the smallest accurate measurement that can be made with an instrument?
vovangra [49]
Dependent on what you are measuring and what took you are using. Please be more specific.
5 0
3 years ago
Explain why it may make more sense to colonize on Venus, rather than Mars.
SVEN [57.7K]

Venus is closer, relatively the same size as the earth and has an atmosphere

6 0
3 years ago
Read 2 more answers
You push a bike pedal 10cm and the bike moves 100cm. Calculate the Speed ratio ( show all work ) ( use the formula and divide th
scZoUnD [109]

Answer:

when you are pushing the pedal you are causing the pedal to move done and then you will move 100cm

Explanation:

10 cm= 100 cm moved so when you move you will move because you are timeing  the 10 by 100 to get the spped

3 0
2 years ago
A piece of driftwood moves up and down as water waves pass beneath it. However, it does not move toward the shore with the waves
pantera1 [17]

Answer:

It's A

Explanation:

As the waves progress through the medium, the particles they are made of move perpendicular to the direction in which the waves move. The particles do not move with the wave. So waves transmit energy but not matter as they progress through a medium.

6 0
3 years ago
Joe is hiking through the woods when he decides to stop and take in the view. He is particularly interested in three objects: a
Novosadov [1.4K]

Answer:

A) correct answer is C,   B)   correct answer is b  and C) The correct answer is b

Explanation:

In the exercises of geometric optics, the equation of the constructor tells us the location of the image.

        1 / f = 1 / p + 1 / q

where f is the focal length of the cornea-crystalline system, p and q are the distances to the object and the image.

In this case, the distance to the image on the retina is constant, about 3 cm. Therefore depending on the distance to the object) p = the focal length must change

        1 / q = 1 / f 1 / p

let's apply this expression to our case

A) indicates that the tree is at a medium distance

so that the image is formed on the retina THE SAME AS

correct answer is C

B) The squirrel is at a smaller distance (p ') than the tree (p), therefore if we substitute in the equation above we find that q must decrease. Consequently the image is in front of the retina

The mountain is very far, suppose in infinity, so the image is BEHIND THE RETINA

therefore the correct answer is b

C) The squirrel is very close so the curvature of the lens INCREASES, resulting in a DECREASE in the focal length

The correct answer is b

6 0
3 years ago
Other questions:
  • The shortest wavelength within the visible spectrum is _______ light.
    7·2 answers
  • I need help matching I’m lost
    8·1 answer
  • Two tectonic plates are moving in opposite directions underneath the Pacific Ocean. In this area, we will be able to find
    10·1 answer
  • Gravity is a force between any two objects with mass wht doesn’t a person feel a gravitational force between them herself and an
    5·1 answer
  • ___ is the rate of change of velocity of an object? Formula: ___
    15·2 answers
  • How do you measure the wavelength of a wave?
    8·2 answers
  • How does the magnitude of the normal force exerted by the ramp in the figure compare to the weight of the static block? The norm
    11·1 answer
  • a heater 60w evaporates 6×10–3kg of boiling water in 60s.what is the specific latent heat of vaporisation of water in jkg–1​
    13·1 answer
  • When a liquid freezes into a solid, the particles of the substance. A. Lose energy B. Gain energy C. Move faster D. Disappear
    14·2 answers
  • NO LINKS! What are the definitions of initial horizontal velocity and initial vertical velocity? Please help! This like is my 20
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!