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
Ilya [14]
3 years ago
8

A 2.0 kg stone is tied to a 0.30 m string and swung around a circle at a constant angular velocity of 12.0 rad/s. The net torque

on the stone about the center of the circle is?
Physics
1 answer:
saul85 [17]3 years ago
6 0

Answer: τ = 0

Explanation:

At constant angular velocity there is no angular acceleration therefore no torque.

τ = Iα

You might be interested in
What is the acceleration of a 0.30-kg volleyball when a player uses a force of 42 N to spike the ball?
quester [9]

Answer:

The acceleration will be 140 meter per second

Explanation:

Force F = mass m × acceleration a

If F = 42 N and m = 0.30 kg

Then  acceleration a = F/m

a = 42/0.30

a = 140 m/s

5 0
3 years ago
Which element is magnetic?<br> Answer<br> cobalt
Gnoma [55]

Which element is magnetic?

Answer

cobalt

4 0
3 years ago
Read 2 more answers
Does uranium use steam?
Neko [114]

Answer:

Yes.

Explanation:

Reactors use uranium for nuclear fuel. The uranium is processed into small ceramic pellets and stacked together onto sealed metal tubes called fuel rods. The heat created by fission turns the water into steam.

4 0
2 years ago
a particle is moving along a circular path having a radius of 4 in such that its position as a function of time is given by thet
ANTONII [103]

Answer:

Explanation:

Given

radius of circular path r=4\ in.

Position is given by

\theta =\cos 2t---1

Differentiate 1  to angular velocity we get

\frac{\mathrm{d} \theta }{\mathrm{d} t}=\omega =-2\sin 2t----2

Differentiate 2 to get angular acceleration

\frac{\mathrm{d} \omega }{\mathrm{d} t}=-2^2\cos 2t ---3

Net acceleration is the vector summation of tangential and centripetal force

a_t=\alpha \times r

a_t=-4\cos 2t\times 4=-16\cos 2t

a_r=\omega ^2\cdot r

a_r=(-2\sin 2t)^2\cdot 4

a_r=16\sin^2(2t)

a_{net}=\sqrt{a_r^2+a_t^2}

a_{net}=\sqrt{(16\sin ^2(2t)+(-16\cos 2t)^2}

a_{net}=\sqrt{256\cos ^2(2t)+256\sin ^4(2t)}                                                    

6 0
3 years ago
Form a hypothesis about how deeply water could erode and about how deeply glaciers could erode
Softa [21]
A hypothesis is an educated guess. It's your own opinion!
8 0
3 years ago
Other questions:
  • The thrust from a car is 590 N. The air resistance and friction together total 680 N. What happens to the speed of the car?
    14·1 answer
  • Can a person be moving in a positive direction even if their acceleration vector is negative ?
    15·2 answers
  • Graphically determine the resultant of the following three vector displacements: (1) 34 m, 25º north of east; (2) 48 m, 33° east
    7·1 answer
  • Can anyone help me with any parts in question number 1: parallel circuit?
    6·1 answer
  • If a car has an initial velocity of 20 m/s and accelerates at 2.0 m/s² for 100 m, what is its final velocity?
    8·1 answer
  • VR of a single movable Pulley is 2,why?​
    7·1 answer
  • An advertisement for a new fish food claims that lab studies show that fish grew three inches in three weeks while eating the fo
    8·1 answer
  • One way to measure g on another planet or moon by remote sensing is to measure how long it takes an object to fall a given dista
    9·1 answer
  • Pls ❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤​
    11·1 answer
  • a current of 3 amps flows through a lamp which is connected to a 24 volt battery calculate the lamps resistance​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!