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
lisov135 [29]
3 years ago
13

Hurricanes are considered____ because they lose power over cool waters or land A. Short-lived B. Heat engines C. Weak

Physics
2 answers:
klasskru [66]3 years ago
7 0
My best guess would be heat engines
scoundrel [369]3 years ago
5 0
I think the correct answer is a short-lived
You might be interested in
A car takes 15 minutes to travel along a road that is 20 km long.
iogann1982 [59]

Answer:

C

Explanation:

15. 20

x4. x4

60. 80

80km/h

8 0
3 years ago
Read 2 more answers
Before Freddy lands on the skateboard it has a certain momentum. After landing, the skateboards momentum
Nadya [2.5K]

Answer:

remains the same

Explanation:

Momentum refers to the quantity of motion of a body. When any body of mass moves, it possess momentum. Numerically,

Momentum =  mass x velocity

i.e. momentum is the product of the mass x velocity

Momentum of a body is always conserved.

In the context, the skateboard has certain momentum before Freddy lands on it. After Freddy lands, the momentum of skateboard remains the same, there is no change in the momentum.

This is because, here the momentum is conserved. After Freddy lands on the skateboard, the total mass on the skateboard increases and so the velocity decreases making the momentum same before the landing.

3 0
2 years ago
Show that the effective force constant of a series combination is given by 1keff=1k1+1k2. (Hint: For a given force, the total di
S_A_V [24]

Answer:

1keff=1k1+1k2

see further explanation

Explanation:for clarification

Show that the effective force constant of a series combination is given by 1keff=1k1+1k2. (Hint: For a given force, the total distance stretched by the equivalent single spring is the sum of the distances stretched by the springs in combination. Also, each spring must exert the same force. Do you see why?

From Hooke's law , we know that the force exerted on an elastic object is directly proportional to the extension provided that the elastic limit is not exceeded.

Now the spring is in series combination

F\alphae

F=ke

k=f/e.........*

where k is the force constant or the constant of proportionality

k=f/e

f_{eff} =f_{1} +f_{2}............................1

also for effective force constant

divide all through by extension

1) Total force is

Ft=F1+F2

Ft=k1e1+k2e2

F = k(e1+e2) 2)

Since force on the 2 springs is the same, so

k1e1=k2e2

e1=F/k1 and e2=F/k2,

and e1+e2=F/keq

Substituting e1 and e2, you get

1/keq=1/k1+1/k2

Hint: For a given force, the total distance stretched by the equivalent single spring is the sum of the distances stretched by the springs in combination.

4 0
3 years ago
How many photons are absorbed during the dental x-ray?
MariettaO [177]
<span>E=hc/wav. len
E = (6.62 x 10^-34 x 3 x 10^8)/0.0275 x 10^-9
E = 7.22182 x 10^-15 J
To convert to eV divide by 1.6 x 10^-19
E = 7.22182 x 10^-15/1.6 x 10^-19 eV
E =45.36 x 10^3 eV
Th energy, E, of a single x-ray photon in eV is = 45.36keV.

Number of photons, n = total energy/ energy of photon
n = 3.85 x 10^-6/7.22182 x 10^-15
n = 5.33 x 10^8 photons </span>
8 0
2 years ago
Which of the following is an example of mechanical waves?
Nastasia [14]
Sound Waves will be an example of mechanical waves.. hope this helps!
8 0
3 years ago
Other questions:
  • Why do we see the color black?
    11·1 answer
  • A 0.01 kg bullet is fired at a 0.5 kg block initially at rest. The bullet, moving with an initial speed of 400 m/s, emerges from
    6·1 answer
  • How much would you weigh on an imaginary planet that has no gravitational force?<br><br>​
    7·1 answer
  • A bicycle tire is spinning counterclockwise at 2.70 rad/s. During a time period Δt = 1.50 s, the tire is stopped and spun in the
    14·2 answers
  • Based on its orbit, which planet behaves the least like the others?
    14·1 answer
  • A train travels north at a speed of 50 m/s.
    5·1 answer
  • Hydrogen compounds in the solar system can condense into ices only beyond the _________.
    14·1 answer
  • Which of the following activities would be fueled by adenosine triphosphate (ATP) and the phosphagen system?A. 400-meter sprintB
    8·1 answer
  • 25000 seconds is how many days?
    9·2 answers
  • An object is NOT accelerating. Is its motion changing?<br> Yes or No?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!