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
Evgesh-ka [11]
2 years ago
5

Can a dragon ride a baby with two heads and a mouth

Physics
1 answer:
Lorico [155]2 years ago
4 0

Answer:

No. The baby must have 3 heads. Only hydras are capable of such tasks.

You might be interested in
If there is a solar eclipse, we see a shadow because the sunlight is _______________.
lesantik [10]

Answer:

reflected by moon

4 0
2 years ago
Read 2 more answers
The human nervous system can propagate nerve impulses at about 102 m>s. Estimate the time it takes for a nerve impulse to tra
Olin [163]

Answer:

t = 0.196 s

Explanation:

The speed of a pulse is determined by the characteristics of the medium, its density and its resistance to stress, as long as these remain the speed will be constant for which we can use the kinetic expressions of the uniform movement

          v = x / t

          t = x / v

calculate

          t = 2/102

          t = 0.196 s

4 0
3 years ago
When does the transfer of thermal energy end?​
Dahasolnce [82]

Answer:

I think when the object transferring the thermal energy reaches the same temp as the object absorbing it

Explanation:

6 0
2 years ago
A rocket is fired straight up. It contains two stages (Stage 1 and Stage 2) of solid rocket fuel that are designed to burn for 1
Archy [21]

Answer:

a)  y= 3.5 10³ m, b)   t = 64 s

Explanation:

a) For this exercise we use the vertical launch kinematics equation

Stage 1

          y₁ = y₀ + v₀ t + ½ a t²

          y₁ = 0 + 0 + ½ a₁ t²

Let's calculate

         y₁ = ½ 16 10²

         y₁ = 800 m

At the end of this stage it has a speed

        v₁ = vo + a₁ t₁

        v₁ = 0 + 16 10

        v₁ = 160 m / s

Stage 2

        y₂ = y₁ + v₁ (t-t₀) + ½ a₂ (t-t₀)²

        y₂ = 800 + 150 5 + ½ 11 5²

        y₂ = 1092.5 m

Speed ​​is

        v₂ = v₁ + a₂ t

        v₂ = 160 + 11 5

        v₂ = 215 m / s

The rocket continues to follow until the speed reaches zero (v₃ = 0)

         v₃² = v₂² - 2 g y₃

         0 = v₂² - 2g y₃

         y₃ = v₂² / 2g

         y₃ = 215²/2 9.8

         y₃ = 2358.4 m

The total height is

          y = y₃ + y₂

          y = 2358.4 + 1092.5

          y = 3450.9 m

           y= 3.5 10³ m

b) Flight time is the time to go up plus the time to go down

Let's look for the time of stage 3

          v₃ = v₂ - g t₃

          v₃ = 0

          t₃ = v₂ / g

          t₃ = 215 / 9.8

          t₃ = 21.94 s

The time to climb is

          t_{s} = t₁ + t₂ + t₃

          t_{s} = 10+ 5+ 21.94

          t_{s} = 36.94 s

The time to descend from the maximum height is

          y = v₀ t - ½ g t²

When it starts to slow down it's zero

         y = - ½ g t_{b}²

         t_{b}  = √-2y / g

         

        t_{b} = √(- 2 (-3450.9) /9.8)

        t_{b} = 26.54 s

Flight time is the rise time plus the descent date

        t = t_{s} + t_{b}

        t = 36.94 + 26.54

        t =63.84 s

        t = 64 s

3 0
2 years ago
Explain how buoyancy can defeat the force of gravity​
Olenka [21]

Answer:

Buoyancy causes things to float in water or liquid which appears to defeat the force of gravity. Hope this helps.

7 0
3 years ago
Other questions:
  • If a freely falling object were somehow equipped with a speedometer, its speed
    7·1 answer
  • 1875 kg car is traveling at 22 m/s. It’s momentum is?
    5·2 answers
  • A carousel has a radius of 1.70 m and a moment of inertia of 110 kg · m2. A girl of mass 44.0 kg is standing at the edge of the
    11·1 answer
  • Which of the following Pearces is the best definition of science?
    7·2 answers
  • the distance of the earth to the sun is 1.5x10^11 m and one year is 365days if the distance to the sun increased six time the in
    14·1 answer
  • What creates voltage difference in a battery?
    13·1 answer
  • Find the volume<br>Length = 23.5cm<br>Breadth =17cm<br>Height =2cm​
    6·1 answer
  • A merry-go-round at a playground is a circular platform that is mounted parallel to the ground and can rotate about an axis that
    10·1 answer
  • What happens to water when it changes to ice?
    15·1 answer
  • Mark pushes his broken car 140 m down the block to his friend's house. He has to exert a 160 N horizontal force to push the car
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!