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
Irina-Kira [14]
3 years ago
5

Need asap!

Physics
1 answer:
Genrish500 [490]3 years ago
7 0

Answer:

3.0 A Is the correct option

Explanation:

I = V / R

I = 12/ 4

= 3

You might be interested in
Scientists studying bull sperm whales off the coast of South Africa have calculated that these mammals can descend to depths of
Zarrin [17]

Answer:

3,00,000

Explanation:

because 1 m =100m so, 3000x100=300000

3 0
3 years ago
Read 2 more answers
The Michelson-Morley experiment was designed to measure Group of answer choices the velocity of the Earth relative to the ether.
NISA [10]

Answer:

The Michelson-Morley was designed to detect the motion of the earth through the ether.

No such relation was found and the speed of light is assumed to be the same in all reference frames.

4 0
3 years ago
A 1.20 kg water balloon will break if it experiences more than 530 N of force. Your 'friend' whips the water balloon toward you
soldi70 [24.7K]

Answer:

t = 0.029s

Explanation:

In order to calculate the interaction time at the moment of catching the ball, you take into account that the force exerted on an object is also given by the change, on time, of its linear momentum:

F=\frac{\Delta p}{\Delta t}=m\frac{\Delta v}{\Delta t}       (1)

m: mass of the water balloon = 1.20kg

Δv: change in the speed of the balloon = v2 - v1

v2: final speed = 0m/s (the balloon stops in my hands)

v1: initial speed = 13.0m/s

Δt: interaction time = ?

The water balloon brakes if the force is more than 530N. You solve the equation (1) for Δt and replace the values of the other parameters:

|F|=|530N|= |m\frac{v_2-v_1}{\Delta t}|\\\\|530N|=| (1.20kg)\frac{0m/s-13.0m/s}{\Delta t}|\\\\\Delta t=0.029s

The interaction time to avoid that the water balloon breaks is 0.029s

5 0
3 years ago
Once the merry-go-round travels at this new angular speed, with what force does the person need to hold on?.
natita [175]

For a merry go round with a radius of R=1.8 m and moment of inertia I=184 kg-m^2 is spinning with an initial angular speed of w=1.48 rad/s   is mathematically given as

F= 618.9 N

<h3>What is the centripetal force?</h3>

Generally, the equation for the angular speed  is mathematically given as

w = v/R

Therefore

w= 4.7/1.8

w= 2.611 rad/s

Where total momentum

Tm= 642.96 + 272.32

Tm= 915.28

and total inertia

Ti= 184 + 246.24

Ti= 430.24

In conclusion, centripetal force

F= mrw^2

F = m*R*w2^2

F = 76*1.8*2.127^2

F= 618.9 N

Read more about mass

brainly.com/question/15959704

CQ

Flag

a merry go round with a radius of R=1.8 m and moment of inertia I=184 kg-m^2 is spinning with an initial angular speed of w=1.48 rad/s in the counter clockwise direction when viewed from above a person with mass m=76 kg and velocity v=4.7 m/s runs on a path tangent to the merry go round once at the merry go round the person jumps on and holds on to the rim of the merry go round angular speed of the merry go round after the person jumps on 2.127 rad/s Once the merry go round travels at this new angular speed with what force does the person need to hold on?

3 0
2 years ago
Kbhgyugybhhv vihiklmb
Ahat [919]

Answer:

?

Explanation:

Can u explain your question?

4 0
2 years ago
Other questions:
  • Please help on this one?
    7·2 answers
  • Two students walk in the same direction along a straight path, at a constant speedâone at 0.90 m/s and the other at 1.90 m/s.
    5·1 answer
  • Which waves move by replacing one particle with another
    11·2 answers
  • A student's pencil rolls off a desk and lands 0.47 m away from the edge of the
    15·1 answer
  • What did Rutherford’s model of the atom include that Thomson’s model did not have?
    15·2 answers
  • Choose ALL of the answers that would support the theory of Continental Drift?
    14·2 answers
  • Why is hip-hop &amp; Zumba dance exercises so popular? does dancing make you a better person?
    8·1 answer
  • A textbook is pushed across a desk. It experiences what type of force ​
    8·1 answer
  • What is the direction of the normal contact force of the road on the wheels?
    7·1 answer
  • A toy car starts from the rest and accelerates at 1.50m/s2 [E] for 2.25s. What is the final velocity, of the car
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!