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
miskamm [114]
3 years ago
12

the planet express is in a circular orbit around the earth and has a total mechanical energy of -4.6 x 10^10 j. how much work mu

st be provided by the planet expresss rockets in order to completley escape earth
Physics
1 answer:
Veseljchak [2.6K]3 years ago
5 0

Answer:  total mechanical energy of -4.6 x 10^10 j. 

Explanation: the planet express is in a circular orbit around the earth and has a total mechanical energy of -4.6 x 10^10 j.

The total mechanical energy is the sum of potential energy and the kinetic energy.

For the rocket to experience the escape from earth, the total work done will be equal to maximum kinetic energy.

According to conservative of energy, maximum kinetic energy is equal to the total mechanical energy.

The work must be provided by the planet expresss rockets in order to completley escape earth will be equal to  total mechanical energy of -4.6 x 10^10 j. 

You might be interested in
Describe electric charge
Gwar [14]
Is the physical property of matter that causes it to experience a force when placed in an electromagnetic field. Two types of electric charges are positive and negative.
6 0
3 years ago
Read 2 more answers
On a recent adventure trip, Anita Break went rock-climbing. Anita was able to steadily lift her 800- kg body 20.0 meters in 100
Irina-Kira [14]

Answer:

Anita 's power rating during this portion of the climb is 1568 Watts.

Explanation:

Given that,

Mass of the body, m = 800 kg

Height, h = 20 m

Time, t = 100 s

We need to find the Anita 's power rating during this portion of the climb. Power rating of an object is given by the work done per unit time. It is given by :

P=\dfrac{W}{t}

P=\dfrac{mgh}{t}

P=\dfrac{800\times 9.8\times 20}{100}

P = 1568 Watts

So, Anita 's power rating during this portion of the climb is 1568 Watts. Hence, this is the required solution.

6 0
3 years ago
Earth quakes near the California Bay typically occur at frequencies of 1.5HZ or 2.8HZ. If you were engineering a new building in
jekas [21]

Answer:

2.0 Hz

Explanation:

2.0 Hz is the most closest to the middle number in between 2.8 and 1.5 Hz. 1.6 Hz would not be suitable as it is too close to 1.5 Hz and 2.7 would also not be suitable as it is too close to 2.8 Hz.

8 0
2 years ago
As a United States citizen, the requirement to serve on juries if called upon is considered which of the following?
ratelena [41]

Answer:

if u are caught by the jews u die

Explanation:

7 0
3 years ago
An object is released from rest at time t = 0 and falls through the air, which exerts a resistive force such that the accelerati
rosijanka [135]

Answer:

A) \frac{g}{b}(1-e^{-bt})

Explanation:

Since a = g - bv,

We can substitute a = dv/dt into the equation.

Then, the equation will be like dv/dt = g - bv.

So we got first order differential equation.

As known, v = 0 at t = 0, and v = g/b at t = ∞.

Since \frac{dv}{dt}= g - bv = b( \frac{g}{b} - v) ⇒ \frac{dv}{ \frac{g}{b} - v}= bdt

So take the integral of both side.

- ln (\frac{g}{b} - v) = bt + C

Since for t=0, v = 0 ⇒ C =- ln (\frac{g}{b})

v = \frac{g}{b} + e^{-bt-ln(\frac{g}{b})} = \frac{g}{b}- \frac{g}{b}e^{-bt} = \frac{g}{b}(1-e^{-bt})

5 0
3 years ago
Other questions:
  • What trend do you observe in electronegativity on the periodic table?
    15·1 answer
  • What is a device that does not work with an electric circuit?
    13·1 answer
  • Water can fall as precipitation, which may include rain, snow, or hail is an observation or inference?
    13·1 answer
  • If you can build a cyclotron with twice the radius and with the magnetic field twice as strong, by what factor would the allowed
    7·1 answer
  • 4 This question has several parts that must be completed sequentially. If you skip a part of the question, you will not receive
    11·1 answer
  • At an instant in time, the electric and magnetic fields of an electromagnetic wave are given by - -6.25 x 10-3 v/m and B = -2.08
    7·1 answer
  • Which of the following is an example of thermal energy?
    14·2 answers
  • What is the mass of a baseball that has a kinetic energy of 105 J and is traveling at 10 m/s?​
    6·1 answer
  • Convert 3.8 kg to Lbs
    9·2 answers
  • What does it mean that energy cannot be created or destroyed?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!