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
Scorpion4ik [409]
3 years ago
8

The weight of a synthetic ball varies directly with the cube of its radius. a ball with a radius of 2 inches weighs 5.605.60 pou

nds. find the weight of a ball of the same material with a​ 3-inch radius.
Physics
1 answer:
Umnica [9.8K]3 years ago
3 0
The weight of the ball m is directly proportional to the cube of the radius, r^3. This means that the ratio between the weight of the ball with radius 3-in and 2-in should be equal to the ratio between the cubes of the two radii:
\frac{m_3}{m_2}= \frac{(3 in)^3}{(2 in)^3}
So we can find the weight of the ball when its radius is 3 inches:
m_3 = m_2  \frac{(3 in)^3}{(2 in)^3}= (5605.60 p) \frac{3^3}{2^3}=18919 pounds
You might be interested in
Compare and contrast instantaneous and average speed.
Harlamova29_29 [7]

Answer:

instantaneous velocity is a velocity covered at an instant while average velocity is the change in distance/ the change in time taken

6 0
2 years ago
Each of the following diagrams shows a spaceship somewhere along the way between Earth and the Moon (not to scale); the midpoint
djyliett [7]

Answer:

F_5 >F_4>F_1 >F_2>F_3

Where F_i represent the force for each of the 5 cases i -1,2,3,4,5 presented on the figure attached.

Explanation:

For this case the figure attached shows the illustration for the problem

We have an inverse square law with distance for the force, so then the force of gravity between Earth and the spaceship is lower when the spaceship is far away from Earth.

Th formula is given by:

F = G \frac{m_{Earth} m_{Spaceship}}{r^2}

Where G is a constant G = 6.674 x10^{-11} m^2/ (ks s^2)

m_{Earth} represent the mass for the earth

m_{spaceship} represent the mass for the spaceship

r represent the radius between the earth and the spaceship

For this reason when the distance between the Earth and the Spaceship increases the Force of gravity needs to decrease since are inversely proportional the force and the radius, and for the other case when the Earth and the spaceship are near then the radius decrease and the Force increase.

Based on this case we can create the following rank:

F_5 >F_4>F_1 >F_2>F_3

Where F_i represent the force for each of the 5 cases i -1,2,3,4,5 presented on the figure attached.

6 0
2 years ago
What happens when an object experiences friction?
kaheart [24]

Answer:Whenever a moving object experiences friction, some of its kinetic energy is transformed into thermal energy. Mechanical energy is always transformed into thermal energy due to friction. Mechanical energy is always transformed into thermal energy due to friction.

Explanation:

Whenever a moving object experiences friction, some of its kinetic energy is transformed into thermal energy. Mechanical energy is always transformed into thermal energy due to friction. Mechanical energy is always transformed into thermal energy due to friction.

5 0
3 years ago
Read 2 more answers
What is the difference between the hegelian right, center, and left? islamic?
Marta_Voda [28]
The main difference between<span> the two is that Enlightenment rationalism dwells in abstract inwardness. and it is only through this echo that German Christianity is ...</span>
6 0
3 years ago
What are the two factors that determine a material's density?
Juliette [100K]
Mass and volume are the 2 factors to determine density
3 0
3 years ago
Other questions:
  • Which dartboard represents high accuracy and low precision?
    8·1 answer
  • skateboarder, starting from rest, rolls down a 13.5 m ramp. When she arrives at the bottom of the ramp her speed is 7.37 m/s. If
    9·1 answer
  • a 4lb ball is travelling in a circle radius 3ft speed 6ft/s. the attached cord pulled through the center has constant speed 2ft/
    7·1 answer
  • When we draw a diagram of the forces acting on an extended object, the tail of the force vector for the weight should be at?
    6·1 answer
  • How can two atoms of the same chemical element be different?
    10·1 answer
  • An element’s __________ is its row in the periodic table.
    8·1 answer
  • Help plssss 30 point this time
    5·1 answer
  • Of the following statement: Choose the Variable<br><br> X = 4 m
    15·1 answer
  • What's the difference between V8 and V12 diesel engine? which one is better and why​
    11·1 answer
  • A circuit connected to a battery of 1.9 voltage. has a current of 0.07 amps. What is the resistance
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!