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
Katarina [22]
3 years ago
14

To test the strength of a retainment wall designed to protect a nuclear reactor,

Physics
1 answer:
Hatshy [7]3 years ago
6 0

Answer:

The speed of the F-4 Phantom upon impact is approximately 214.92 m/s

Explanation:

The given parameter of the motion of the F-4 Phantom jet aircraft are;

The mass of the F-4 phantom rocket, m₁ = 19,100 kg

The mass of the retaining wall, m₂ = 469,000 kg

The velocity of the combined mass of the wall and the F-4 after collision, v₃ = 8.41 m/s

The retainment wall was initially at rest, therefore, v₂ = 0 m/s

Let 'v₁', represent the speed of the F-4 Phantom upon impact

By the principle of conservation of linear momentum, we have;

m₁·v₁ + m₁·v₂ = m₁·v₃ + m₂·v₃ = (m₁ + m₂)·v₃

Plugging in the values, we have;

19,100 × v₁ + 469,000 × 0  = (19,100 + 469,000) × 8.41

∴ v₁ = (19,100 + 469,000) × 8.41/(19,100) = 214.917329843

v₁ ≈ 214.92

The speed of the F-4 Phantom upon impact, v₁ ≈ 214.92 m/s.

You might be interested in
Diana has just been diagnosed with "pre-diabetes," and her doctor has instructed her to watch her intake of sugar. This is easy
lana [24]

Answer:

sugar free

Explanation:

8 0
3 years ago
Read 2 more answers
A 100-kg spacecraft is in a circular orbit about Earth at a height h = 2RE .
maria [59]

To solve this problem it is necessary to apply the concepts related to the conservation of the Gravitational Force and the centripetal force by equilibrium,

F_g = F_c

\frac{GmM}{r^2} = \frac{mv^2}{r}

Where,

m = Mass of spacecraft

M = Mass of Earth

r = Radius (Orbit)

G = Gravitational Universal Music

v = Velocity

Re-arrange to find the velocity

\frac{GM}{r^2} = \frac{v^2}{r}

\frac{GM}{r} = v^2

v = \sqrt{\frac{GM}{r}}

PART A ) The radius of the spacecraft's orbit is 2 times the radius of the earth, that is, considering the center of the earth, the spacecraft is 3 times at that distance. Replacing then,

v = \sqrt{\frac{(6.67*10^{-11})(5.97*10^{24})}{3*(6.371*10^6)}}

v = 4564.42m/s

From the speed it is possible to use find the formula, so

T = \frac{2\pi r}{v}

T = \frac{2\pi (6.371*10^6)}{4564.42}

T = 8770.05s\approx 146min\approx 2.4hour

Therefore the orbital period of the spacecraft is 2 hours and 24 minutes.

PART B) To find the kinetic energy we simply apply the definition of kinetic energy on the ship, which is

KE = \frac{1}{2} mv^2

KE = \frac{1}{2} (100)(4564.42)^2

KE = 1.0416*10^9J

Therefore the kinetic energy of the Spacecraft is 1.04 Gigajules.

8 0
3 years ago
Both physical and chemical changes are accompanied by a change in the total energy of the system, which is divided into two broa
olga2289 [7]

Answer:

I believe <u>kinetic / potential</u>

Explanation:

8 0
2 years ago
Which of these is NOT a possible type of energy transformation?
Orlov [11]

to be franc i really think the answer is B

6 0
3 years ago
How do you solving kinematic equations for horizontal projectiles?
daser333 [38]
See projectiles are very simple unless you understand its core concepts....projectile is nothing just mixture of upward motion and horizontal motion....
THE KEY IS FORGET THE NAME PROJECTILE...ITS JUST HORIZONTAL MOTION + VERTICAL MOTION

7 0
2 years ago
Other questions:
  • How does the transfer of thermal energy occur?
    8·1 answer
  • HELP ASAP VERY IMPORTANT.
    8·1 answer
  • How do scientists predict hurricanes?
    13·1 answer
  • Ludwig Boltzmann performed a simple, but powerful experiment to gather evidence concerning the velocity distribution of a sample
    12·1 answer
  • What happens to the volume of a loaf of bread that is squeezed? The mass? The density?
    14·1 answer
  • Which planet is small, with a rocky surface and an atmosphere?
    12·2 answers
  • an always be used to calculate the electric field. relates the electric field at points on a closed surface to the net charge en
    6·1 answer
  • Why would the planets move in a straight path if there was no gravitational energy from the sun​
    14·2 answers
  • A motor has an internal resistance of 12.1 Ω. The motor is in a circuit with a current of
    12·1 answer
  • Evelyn meets her friends at a local restaurant 5 km away. Afterwards she stops at the post office which is another 3 km away, bu
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!