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
makkiz [27]
3 years ago
10

a runner covers the last straigjt stretch of a race in 4 s. during that time, he speeds up from 5m/s to 9m/s.

Physics
1 answer:
PtichkaEL [24]3 years ago
8 0

During that final period of time,
his acceleration is
                                (9 m/s - 5 m/s) / (4 sec) = 1 m/s² .

Did you have a question to ask ?

You might be interested in
For Jane to see an image, light must enter her eyes. What specifically is entering her eyes when she sees an image?
Sergio [31]
Energy
because once the light hits her eyes energy flows through her body so the answer is A energy
3 0
3 years ago
Read 2 more answers
g How many diffraction maxima are contained in a region of the Fraunhofer single-slit pattern, subtending an angle of 2.12°, for
lbvjy [14]

Answer:

2

Explanation:

We know that in the Fraunhofer single-slit pattern,

maxima is given by

a\text{sin}\theta=\frac{2N+1}{2}\lambda

Given values

θ=2.12°

slit width a= 0.110 mm.

wavelength λ= 582 nm

Now plugging values to calculate N we get

0.110\times10^{-3}\text{sin}2.12=(\frac{2N+1}{2})582\times10^{-9}

Solving the above equation we get

we N= 2.313≅ 2

4 0
3 years ago
What must be part of a quantitative observation?
inna [77]
a number hope this helps
8 0
3 years ago
Read 2 more answers
What is your acceleration while sitting in your chair. the latitude of corvallis is 44.4˚.?
marta [7]
 <span>You can start with the equations you know 

a=v^2/r = (2pi*r/T)^2/r = 4pi^2r/T^2 

Radius of earth (R) = 6378.1 km 
Time in one day (T) = 86400 seconds 
Latitude = 44.4 degrees 

If you draw a circle and have the radius going out at a 44.4 degree angle above the center you can then find the r. 

r=Rcos(44.4) 
r=6378.1cos(44.4) 
r= 4556.978198 km or 4556978 m 

Now you can plug this value into the acceleration equation from above... 

a= 1.8*10^8/7.47*10^9 
a= .0241 m/s^2 </span>
8 0
3 years ago
A Net Force of 9.0 N acts through a distance of 3.0 m in a time of 3.0 s. The work done is?
JulijaS [17]
Work done is the distance a force acts over.

So, the work done here is 9.0N * 3.0m = 27 J
5 0
3 years ago
Read 2 more answers
Other questions:
  • N2 + O2 → 2NO N-N triple bond: 941 kJ/mol O-O double bond: 495 kJ/mol N-O bond: 201 kJ/mol
    7·1 answer
  • An 850.0 kg car wants to accelerate from rest to a speed of 18.0 m/s.
    15·1 answer
  • A spotlight on the ground shines on a wall 12 m away. If a man 2 m tall walks along the x-axis from the spotlight toward the bui
    8·1 answer
  • "The team wants to delete from Dataset A all activities related to users in Dataset B. How can an Einstein Consultant help them
    12·1 answer
  • Describe how matter cycles through an ecosystem
    6·1 answer
  • A body oscillates with simple harmonic motion accordingto the
    7·1 answer
  • The rate at which speed changes is called
    10·2 answers
  • If an organism had the following organelles: mitochondria, chloroplast, ribosome, nucleus, cell wall, and cell membrane, what ty
    15·1 answer
  • An apple contains 165 Calories. How many actual calories does it contain? How many joules does it contain
    6·1 answer
  • Pls help me ASAP it is for a final I dont understanddddd<br> Real help
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!