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
Contact [7]
3 years ago
11

An asteroid, whose mass is 3.6 × 10-4 times the mass of Earth, revolves in a circular orbit around the Sun at a distance that is

1.6 times the Earth's distance from the Sun. (a) Calculate the period of revolution of the asteroid in years. (b) What is the ratio of the kinetic energy of the asteroid to the kinetic energy of Earth?
Physics
1 answer:
frosja888 [35]3 years ago
7 0

Answer:

a) 2.02 years

b) 8.1 x 10⁻⁸.

Explanation:

Time period of a rotating body T² is proportional to radius of orbit R³ So

T₁² / T₂² = R₁³ /R₂³ ( T₁ and R₁ is time period and radius of orbit of the earth .)

1² / T₂² =( 1/1.6)³

T₂ = 2.02 years.

Kinetic energy of an orbiting body = 1/2 m v₀² ( v₀ is orbital speed)

= 1/2 m x 2 g R = m x G m/R² X R= m² x G /R

Kinetic energy of asteroid K₁ / kinetic energy of earth K₂ =

(mass of asteroid/mass of earth)² x( radius of earth / radius of asteroid)

=( 3.6 x 10⁻⁴)² x 1/1.6 = 8.1 x 10⁻⁸ .

You might be interested in
Calculate the pressure of an enclosed fluid on which a force of 150 N is exerted over an area of 10 cm2. give the answer in pasc
jek_recluse [69]
The pressure of the enclosed fluid is 150000Pa
3 0
3 years ago
To move a suitcase up to the check-in stand at the airport a student pushes with a horizontal force through a distance of 0.95 m
solmaris [256]

Answer:

33.68 N

Explanation:

Data

W= 32J

d- 0.95m

F= ?

W=Fd

They are asking for the magnitude which is the force, so you need to solve for force.

F=W/d

= 32J/ 0.95m

= 33.68 N

6 0
3 years ago
Air is enclosed in a syringe at room temperature. The end is the pushed so the air only fills a 1/3 of the length of the syringe
borishaifa [10]

Answer:

A) Does not change

B) Decrease

C) Increasing

D) Increasing

Explanation:

When it pushes it's volume is reduced by 1/3 because it's Area is constant there for only volume is decreased. Then the number of molecules don't change

A) don,t change

B) Decreases

C) Density is increased because it mass doesn't change. there for

Mass = Density * Volume

When Volume is decreasing to keep mass constant Density will be increased.

D) Pressure is increased according to the boil's law. it says that for fixed mass and fixed temperature pressure is inversely proportional to the volume. then volume decrease pressure increase  

4 0
3 years ago
Read 2 more answers
A ball is kicked on a planet the size of Earth but with twice the acceleration due to gravity. If the maximum height of the ball
USPshnik [31]

Answer:

The value t = 1.995 \  s

Explanation:

From the question we are told that

The acceleration due to gravity is a = 2g

The maximum height is h= 39 m

Generally from the kinematic equation

             s =  ut + \frac{1}{2} at^2

Here u  is the velocity of the ball at maximum height before it start falling and the value is  0 m/s

So

            39 =  0* t + \frac{1}{2} (2g)t^2

            39 = (9.8)t^2

            t =  \sqrt{3.9795918}

t = 1.995 \  s

3 0
4 years ago
For years, the tallest tower in the United States was the Phoenix Shot Tower in Baltimore, Maryland. The shot tower was used fro
serious [3.7K]

Answer:

The answer to your question is:

a) t = 3.81 s

b) vf =  37.4 m/s

Explanation:

Data

height = 71.3 m = 234 feet

t = 0 m/s

vf = ?

vo = 0 m/s

Formula

h = vot + 1/2gt²

vf = vo + gt

Process

a)

               h = vot + 1/2gt²

             71.3 = 0t + 1/2(9.81)t²

             2(71.3) = 9,81t²

              t² = 2(71.3)/9.81

              t² = 14.53

              t = 3.81 s

b)

      vf = 0 + (9.81)(3.81)

      vf = 37.4 m/s

3 0
3 years ago
Other questions:
  • At the top of a frictionless inclined plane, a 0.50-kilogram block of ice possesses 5.0 joules of gravitational poteRtial energy
    14·1 answer
  • A rod made up of certaon metall which had coefficiebt of volume expansion is 33×10^-6 per celsius degrer.The rod is 100 meter lo
    5·1 answer
  • NEED HELP WITH THIS PROBLEMS. Thank you
    12·2 answers
  • Explain Kepler's second law in detail with figures.
    5·1 answer
  • Can someone help me please ??
    15·1 answer
  • What is the formula for average velocity?
    12·1 answer
  • Describe several characteristics that distinguish population I stars from population II stars.
    9·1 answer
  • According to Boyle’s law, the volume of a gas is inversely proportional to its pressure if the _____.
    14·1 answer
  • 1)A chocolate bar measures 10 cm long by 2 cm wide and is 2 cm thick
    9·1 answer
  • An object moves away from the earth. Consider system A: the object alone, and system B: the object and the earth together. The p
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!