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
Andre45 [30]
3 years ago
10

An ice skater starts a spin with her arms stretched out to the sides. she balances on the tip of one skate to turn without frict

ion. she then pulls her arms in so that her moment of inertia decreases by a factor of 4. in the process of her doing so, what happens to her kinetic energy? (a) it increases by a factor of 4. (b) it increases by a factor of 16. (c) it remains constant. (d) it decreases by a factor of 4. (e) it increases by a factor of 16.
Physics
2 answers:
Georgia [21]3 years ago
6 0
It increases by a factor of 4.
GuDViN [60]3 years ago
3 0

inertia: Tendency of an object to resist a change in its motion

You might be interested in
"The toy car is about 3 inches long" is an example of a what observation?
Crazy boy [7]

Answer:

It's a quantitative observation because it includes numerical data.

Explanation:

please mark brainliest if im correct

5 0
3 years ago
Two point charges are 3.00 cm apart. They are moved to a new separation of 2.00 cm. By what factor does the resulting mutual for
trasher [3.6K]

Answer:

By a factor of 9/4

Explanation:

Applying Coulomb's law,

F = kqq'/r²................... Equation 1

Assuming q and q' are the two point charges respectively.

Where k = coulomb's constant, r = distance between the charges.

When the point charges are 3.0 m apart,

F = kqq'/3²

F = kqq'/9.................... Equation 1

When they are moved to a new distance, 2.00 m

F' = kqq'/2²

F' = kqq'/4................. Equation 2.

Comparing equation 1 and equation 2.

F' = 9F/4

Hence the resulting mutual force change by a factor of 9/4

3 0
4 years ago
The type of plate boundary where two plates slide past one another.
mario62 [17]

A transform fault boundary is the correct answer.

5 0
3 years ago
Two air track carts move along an air track towards each other. Cart A has a mass of 450 g and moves toward the right with a spe
ra1l [238]

Answer:

0.465 kgm/s

Explanation:

Given that

Mass of the cart A, m1 = 450 g

Speed of the cart A, v1 = 0.85 m/s

Mass of the cart B, m2 = 300 g

Speed of the cart B, v2 = 1.12 m/s

Now, using the law of conservation of momentum.

It is worthy of note that our cart B is moving in opposite directions to A

m1v1 + m2v2 =

(450 * 0.85) - (300 * 1.12) =

382.5 - 336 =

46.5 gm/s

If we convert to kg, we have

46.5 / 100 = 0.465 kgm/s

Thus, the total momentum of the system is 0.465 kgm/s

6 0
4 years ago
18 POINTS Just need the correct answer 1-3 Thanks will Make As Brainlist
Makovka662 [10]
1)D
2)B
3)D

Hope this helps!
8 0
3 years ago
Read 2 more answers
Other questions:
  • What was Sylvester James Gates biggest discovery
    5·2 answers
  • Why to astronauts appear weightless while they are filmed performing activities inside the orbiting space shuttle?
    10·2 answers
  • Provide an example of a material that transmits, reflects, and absorbs light simultaneously?
    10·1 answer
  • In 4 -5 sentences, summarize the science of the sport of curling and how it relates to friction
    9·1 answer
  • A car moving along a straight road at 30m/s slows uniformly to a speed of 10m/s in a time of 5s. determine the
    13·1 answer
  • The
    7·1 answer
  • 5. Draw conclusions: How are potential energy, kinetic<br> energy, and total energy related?
    5·1 answer
  • PLS ANSWER FAST WILL GIVE BRAINLY!!!! ANSWER ONLY IF YOU KNOW!!!!
    10·1 answer
  • What two air masses creates hurricanes?
    14·2 answers
  • Ayuda plisss, es urgente
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!