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
Allushta [10]
3 years ago
12

Evaluate the final kinetic energy of the supply spacecraft for the actual tractor beam force, F(x)=αx3+βF(x)=αx3+β.

Physics
1 answer:
Elan Coil [88]3 years ago
8 0

Answer:

K = 1.525 10⁻⁹ x⁴ + 4.1 10⁶ x

Explanation:

To find the variation of kinetic energy, let's use the work energy theorem

            W = ΔK

           ∫ F .dx = K -K₀

If the body starts from rest K₀ = 0

           ∫ F dx cos θ = K

Since the force and displacement are in the same direction, the angle is zero, so the cosine is 1

we substitute  and integrate

          α ∫ x³ dx + β ∫ dx = K

          α x⁴ / 4 + β x / 1 = K

we evaluate from the lower limit F = 0 to the upper limit F

         α (x⁴ / 4 -0) + β (x -0) = K

        K = αX⁴ / 4 + β x

        K = 1.525 10⁻⁹ x⁴ + 4.1 10⁶ x

in order to finish the calculation we must know the displacement

You might be interested in
One who voluntarily donates tissues/ organs striped
Artist 52 [7]
A tissue donor is what you're probably looking for. :)
8 0
3 years ago
If a 4.0Ω resistor, a 6.0Ω resistor, and an 8.0Ω resistor are connected in parallel across a 12 volt battery, what is the total
allsm [11]

Answer:

Explanation:

6.7 amps

7 0
2 years ago
Science Mixtures Question( giving brainly, thanks, and rank of 5 stars.)
vazorg [7]

Answer:

Condensation

Explanation:

That is when water from the air collects as a drop. also can be rain.

4 0
3 years ago
Read 2 more answers
Strontium 3890Sr has a half-life of 28.5 yr. It is chemically similar to calcium, enters the body through the food chain, and co
patriot [66]

Answer:

Thus the time taken is calculated as 387.69 years

Solution:

As per the question:

Half life of ^{3890}Sr\, t_{\frac{1}{2}} = 28.5 yrs

Now,

To calculate the time, t in which the 99.99% of the release in the reactor:

By using the formula:

\frac{N}{N_{o}} = (\frac{1}{2})^{\frac{t}{t_{\frac{1}{2}}}}

where

N = No. of nuclei left after time t

N_{o} = No. of nuclei initially started with

\frac{N}{N_{o}} = 1\times 10^{- 4}

(Since, 100% - 99.99% = 0.01%)

Thus

1\times 10^{- 4} = (\frac{1}{2})^{\frac{t}{28.5}}}

Taking log on both the sides:

- 4 = \frac{t}{28.5}log\frac{1}{2}

t = \frac{-4\times 28.5}{log\frac{1}{2}}

t = 387.69 yrs

5 0
3 years ago
If the moon is rising at midnight, the phase of the moon must be
Nadya [2.5K]
The phase is called 3rd quarter.

Hope this helps:)
7 0
3 years ago
Other questions:
  • A 2,300-kg truck is traveling down a highway at 32 m/s. What is the kinetic energy of the truck?
    14·1 answer
  • Can You Answer This
    13·1 answer
  • A 7.0-kg rock is subject to a variable force given by the equation f(x)=6.0n−(2.0n/m)x+(6.0n/m2)x2 if the rock initially is at r
    12·1 answer
  • The force of gravity is responsible for continuously changing the ______ of a satellite.
    7·2 answers
  • Heat is extracted from a certain quantity of steam at
    6·1 answer
  • A temperature of 50F is equal to c
    15·1 answer
  • Examples of the period, frequency, speed of a wave in a sentence?
    10·1 answer
  • As food passes through the alimentary canal, the presence of chemical secretions will occur in which order?
    5·2 answers
  • Try to move the magnet back and forth between the two coils. Explain the motion of the magnet and what might be causing this.
    8·1 answer
  • A shunting engine in a rail yard is working on a straight east-west section of line. First it travels west for 150 s with an ave
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!