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
aleksandrvk [35]
3 years ago
12

An eagle is flying horizontally at a speed of 3m/s when the fish in her talons wiggles loose and falls into the lake 10m below.

Calculate the velocity of the fish relative to the water when it hits the water.
Physics
1 answer:
Kamila [148]3 years ago
7 0

Answer:

Velocity of the fish relative to the water when it hits the water = 14.32 m/s along 77.91° below horizontal.

Explanation:

Vertical motion of fish:

 Initial speed, u = 0

 Acceleration, a = 9.81 m/s²

 Displacement, s = 10 m

 We have equation of motion, v² = u² + 2as

 Substituting

   v² = 0² + 2 x 9.81 x 10 = 196.2

    v = 14 m/s

 Final vertical speed = 14 m/s

 Final horizontal speed = initial horizontal speed = 3 m/s

 Final velocity = 3 i - 14 j m/s

 Magnitude

     v=\sqrt{3^2+(-14)^2}=14.32m/s

 Direction

      \theta =tan^{-1}\left ( \frac{-14}{3}\right )=-77.91^0

 Velocity of the fish relative to the water when it hits the water = 14.32 m/s along 77.91° below horizontal.

You might be interested in
Which of these actions will increase friction? Select three options. Scratching a surface to make it rougher polishing a surface
k0ka [10]

Answer:

scratching a surface to make it rougher

increasing the size of a flying object

adding extra weight to an object

Explanation:

5 0
3 years ago
Read 2 more answers
Explain the relationship between the earth's crust and the earth's ocean sizes.
valina [46]

the outermost layer of Earth’s lithosphere that is found under the oceans and molded at scattering centres ono ceanic ridges, which occur at deviating plate boundaries

Oceanic crust is about 6 km (4 miles) thick.

hope it helps

3 0
3 years ago
Asap? This heating curve is produced when a certain substance is heated.
MaRussiya [10]

Answer: the particles are more orderly in region 1

Explanation: region 1 is when the substance is a solid and as it is heated the particles move further apart and have more kinetic energy.

5 0
3 years ago
Read 2 more answers
Identifying Mechanical Energy
arsen [322]
Bruh ima be honest with you idek
3 0
3 years ago
Read 2 more answers
Determina el tamaño de la arista de un cubo hecho de plata, cuya masa es de 10.49 kg.
Sidana [21]

Answer:

88.2 N

Explanation:

Datos

Lcubo = 10 cm = 0.1 m

Vcubo = Vfluido desalojado= 0.1 m x 0.1 m x 0.1 m = 10-3 m

mcubo = 10 kg

dfluido = 1000 kg/m3

g = 9.8 m/s2  

Sabemos que el peso aparente de un cuerpo que se sumerge en un fluido es:

Paparente=Preal−Pfluido

Teniendo en cuenta que:

Preal = mcubo⋅gPfluido=E= dfluido⋅Vfluido⋅g

Como el cuerpo se sumerge completamente en el fluido, el volumen de fluido desalojado es exactamente el volumen del cubo. Por lo tanto si sustituimos los datos que nos proporcionan en el enunciado en la primera ecuación:

Paparente=mcubo⋅g−dfluido⋅Vfluido⋅g ⇒Paparente=10 kg ⋅9.8 m/s2 − 1000 kg/m3 ⋅10−3 m ⋅9.8 m/s2 ⇒Paparente = 88.2 N

7 0
3 years ago
Other questions:
  • In a shot-put competition, a shot moving at 15m/s has 450J of mechanical kinetic energy. What is the mass of the shot? Please he
    7·1 answer
  • Which type of rock is formed from cooling molten rock?
    9·1 answer
  • The line spectrum of lithium has a red line at 670.8 nm. Calculate the energy of a photon with this wavelength.
    7·1 answer
  • An alternating current is supplied to an electronic component with a rating that the voltage across it can never, even for an in
    8·1 answer
  • Why has the atomic model changed over time
    10·1 answer
  • A calorimeter has aluminum inner cup of mass 120 gram containing 200 ml water at temperature 20 degree Celsius. Brass piece with
    5·2 answers
  • Một vật được ném lên trên theo phương thẳng đứng. Người quan sát
    6·1 answer
  • If an organism had the following organelles: mitochondria, chloroplast, ribosome, nucleus, cell wall, and cell membrane, what ty
    15·1 answer
  • Which list includes the phase changes that require a loss of energy (heat)?
    15·1 answer
  • Please help <br> i’ll give you so many points
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!