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
pishuonlain [190]
3 years ago
15

Amy swims 500 m (0.5 Km) in 6 minutes (0.1 hour). What was her speed in Kilometers per hour? A. 8.3 Km/hr B. 5 Km/hr C. 50 Km/hr

D. 83 Km/hr
Physics
2 answers:
kondor19780726 [428]3 years ago
8 0
Speed = Distance ÷ Time so divide .5 km by .1h. .5 km÷.1h=5 km/h, so the answer is B. 5km/h.
astra-53 [7]3 years ago
8 0
Speed = Distance/time =  0.5km/0.1 hour =      5 km/hour

Option B.
You might be interested in
Define scalar and vector
Andreas93 [3]

The quantity is either a vector or a scalar. These two categories can be distinguished from one another by their distinct definitions: Scalars are quantities that are fully described by a magnitude (or numerical value) alone. Vectors are quantities that are fully described by both a magnitude and a direction.

7 0
3 years ago
The kind of heat transfer that travels through space in electromagnetic waves is?
Masteriza [31]

Answer:

radiation!

Explanation:

7 0
3 years ago
Read 2 more answers
Does plants have prokaryotic cells?
vova2212 [387]
No they have eukaryotic cells
7 0
3 years ago
Read 2 more answers
Consider two diffraction gratings with the same slit separation. The only difference between the two gratings is that one gratin
kobusy [5.1K]

Answer:

True The grid with more slits gives more angle separation increases

True. The grating with 10 slits produces better-defined (narrower) peaks

Explanation:

Such a system can be seen as a diffraction network in this case with different number of lines per unit length, the expression for the constructive interference of a diffraction network is

      d sin θ = m λ

where d is the distance between slits or lines, m the order of diffraction and λ the wavelength.

For network with 5 slits

      d = 1/5 = 0.2

For the network with 10 slits

      d = 1/10 = 0.1

let's calculate the separation (teat) for each one

      θ = sin⁻¹ (m λ / d)

for 5 slits

     θ₅ = sin⁻¹ (m λ 5)

for 10 slits

     θ₁₀ = sin⁻¹ (m λ 10)

we can appreciate that for more slits the angle increases

the intensity of a series of slits is

       I = I₀ sin²2 (N d/2) / sin² d/2)

when there are more slits (N) the peaks have greater intensity and are more acute (half width decreases)

let's analyze the claims

False

True The grid with more slits gives more angle separation increases

False

True The expression for the intensity of the diffraction peaks the intensity of the peaks increases with the number of slits as well as their spectral width decreases

False

5 0
3 years ago
Calculate the kinetic energy of a 4.00kg object traveling at 16.0 m/s
Elenna [48]
KE = ½mv² = ½(4.00 kg)(16.0 m/s)² = 512 J
3 0
3 years ago
Read 2 more answers
Other questions:
  • The process by which water diffuses from a region of greater concentration to a region of lesser concentration is called
    6·2 answers
  • Suppose you use a machine that gives you a mechanical advantage of 2 to achieve an output force of 30 Newtons. What must the inp
    7·1 answer
  • How to convert 45.77 cubic inches to cubic centimeters
    12·1 answer
  • An astronaut is taking a space walk near the shuttle when her safety tether breaks. what should the astronaut do to get back to
    10·1 answer
  • SCIENCE
    10·1 answer
  • Hello pick all the right ones
    6·1 answer
  • Please help!!!!! (and explain if you can) thank you so SO much!!! *will give brainliest*
    11·2 answers
  • Which of the following best describes the difference between type a and type b
    9·1 answer
  • If the rock was going 90m/s when it hit the ground. How many seconds would it have been falling for?
    7·1 answer
  • I NEED THIS ANSWERED ASAP NO LINKS !!!<br> I need a answer that is 100% ACCURATE
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!