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
kow [346]
3 years ago
8

In a marathon race, chad is out in front, running due north at a speed of 4.04 m/s. john is 96 m behind him, running due north a

t a speed of 4.31 m/s. how long does it take for john to pass chad?
Physics
1 answer:
Bad White [126]3 years ago
8 0

I was looking for the answer of same question but I didn’t find it from any source so I went for online help and got the detailed answer at <span>www.solutioninn.com/in-a-marathon-race-chad-is-out-in-front-running</span>

You might be interested in
If a stone is dropped from a height of 400 feet, its height after t seconds is given by s = 400 − 16t2. Find its instantaneous v
soldier1979 [14.2K]

Answer:

v = -32 t

Explanation:

given,

s = 400- 16 t²

we know,

Velocity of an object is defined as the change in displacement per unit change in time.

velocity an also be return as

v = \dfrac{ds}{dt}

v = \dfrac{d}{dt}(400-16t^2)

v= 0 -2\times 16 t

v = -32 t

Hence, instantaneous velocity function given by v = -32 t

To calculate instantaneous velocity, you need to insert value of time.

ex, instantaneous velocity at t = 4 s

       v = -32 x 4 = -128 m/s.

5 0
3 years ago
An airplane, starting from rest, moves down the runway at constant acceleration for 18 s and then takes off at a speed of 60 m/s
ruslelena [56]

Answer:

a =3.33 m/s²

Explanation:

given,

initial speed of Plane, u = 0 m/s

final speed of plane, v = 60 m/s

time of the acceleration, t = 18 s

average acceleration of the plane, a = ?

average acceleration is equal to change in velocity per unit time.

a = \dfrac{v - u}{t}

a = \dfrac{60 - 0}{18}

a = \dfrac{60}{18}

     a =3.33 m/s²

Hence, average acceleration of the plane is equal to a =3.33 m/s²

4 0
3 years ago
Read 2 more answers
I’ll mark brainliest
Nikitich [7]

im not gonna write a research paper but this is the really easy way write global warming talk about animals the polar ice caps and water levels then for what causes it burning fossil fuels and energy plants. then finish off with its awful and we should use solar or geothermic or wind or when the time comes fusion not fission fusion makes helium from hydrogen then burylliam from helium then oxygen and silicon so on so forth instead of fissions uranium,plutonium and thorium and with radioactive waste

8 0
3 years ago
When you drink cold water, your body must expend metabolic energy in order to maintain normal body temperature (37° C) by warmi
Gelneren [198K]

Answer:

7.72 Liters

Explanation:

normal body temperature = T_body =37° C

temperature of ice water = T_ice =0°c

specfic heat of water = c_{water} =4186J/kg.°C

if the person drink 1 liter of cold water mass of water is = m = 1.0kg

heat lost by body is Qwater =mc_{water} ΔT

                                           = mc{water} ( T_ice - T_body)

                                             = 1.0×4186× (0 -37)

                                             = -154.882 ×10^3 J

here negative sign indicates the energy lost by body in metabolic process energy expended due to brisk - hour long walk is Q_{walk} = 286 kilocalories

            = 286×4186J

so number of liters of ice water have to drink is

n×Q_{water} =Q_{walk}                                                                        n= Q_{walk}/ Q_{water}

= 286×4186J/154.882×10^3 J

 = 7.72 Liters

7 0
3 years ago
Read 2 more answers
A marble is placed at the bottom of a semi-spherical bowl, as shown in the figure. The marble is then displaced from the bottom
Andrew [12]

Answer:

It is D

Explanation:

8 0
3 years ago
Other questions:
  • What is the SI unit for intensity?
    8·1 answer
  • If you walked 29752 meters in 2.00 hours what would your average speed be in m/s. Then, suppose you slow down to 3.00 m/s at the
    12·1 answer
  • These are nontoxic, nonflammable chemicals containing atoms of carbon, chlorine, and fluorine that have created a hole in the oz
    5·1 answer
  • Describe transmission
    11·1 answer
  • If an oxygen molecule traveling at the rms speed bounces back and forth between opposite sides of a cubical vessel of 0.10 m on
    15·1 answer
  • Pls help me I don’t get it :(
    8·1 answer
  • An electromagnetic wave has a frequency of 4.0 x 10^18 Hz. What is the wavelength of the wave?
    13·2 answers
  • A stunt car traveling at 20 m/s flies horizontally off a cliff and lands 39.2 m from the base of the cliff. How tall is the clif
    5·1 answer
  • The force that slows down a soccer ball rolling on the grass is the same force used to start a campfire. True or False
    9·2 answers
  • Which of the following best describes electromagnetic waves?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!