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
Serga [27]
3 years ago
5

The vector quantity that causes torsional acceleration of a rigid system is called ____

Physics
1 answer:
Zanzabum3 years ago
8 0

Answer: askpkpwkk

Explanation:

You might be interested in
My Notes An electron is released from rest on the axis of a uniform positively charged ring, 0.500 m from the ring's center. If
dsp73

Answer:

Velocity of the electron = v = 1.2\times 10^8\ m/s.

Explanation:

Given,

  • Mass of the electron = m_e\ =\ 9\times 10^{-31}\ kg
  • Charge on the electron = q_e\ =\ 1.62\times 10^{-19}\ C
  • Charge density of the ring = \rho\ =\ +1.00\times 10^{-6}\ C/m
  • Radius of the ring = R = 0.70 m
  • Distance between the electron ant the center or the ring = x = 0.5 m

Now total charge on the ring = Q\ =\ \rho\times 2\pi R

Potential energy due to the charged ring to the point on the x-axis is

P.E.\ =\ \dfrac{KQq_e}{\sqrt{R^2\ +\ x^2}}\\

Let v be the velocity of the electron at the center of the ring.

Total kinetic energy of the electron = \dfrac{1}{2}m_ev^2\\

Now, From the conservation of energy,

the total potential energy of the electron at initially is converted to the total kinetic energy of the electron at the center of the ring,

\therefore P.E.\ =\ K.E.\\\Rightarrow \dfrac{KQ}{\sqrt{R^2\ +\ x^2}}\ =\ \dfrac{1}{2}m_ev^2\\\Rightarrow v\ =\ sqrt{\dfrac{2 KQq_e}{m_e\sqrt{R^2\ +\ x^2}}}\\\Rightarrow v\ =\ \sqrt{\dfrac{2Kq_e\rho \times 2\pi R}{m_e\sqrt{R^2\ +\ x^2}}}\\\Rightarrow v\ =\ \sqrt{\dfrac{2\times 9\times 10^9\times 1.0\times 10^{-6}\times 2\times 3.14\times 0.7\times 1.6\times 10^{-19}}{9\times 10^{-31}\times \sqrt{0.7^2\ +\ 0.5^2}}}\\\Rightarrow v\ =\ 1.2\times 10^8\ m/s.

Hence the velocity of the electron on the center of the charged ring is 1.2\times 10^8\ m/s.

5 0
3 years ago
Identify the smallest unit of an element
marysya [2.9K]

atom ................................................... sorry for the periods

3 0
3 years ago
Read 2 more answers
[1] The assembly starts from rest and reaches an angular speed of 150 rev/min under the action of a 20-N force T applied to the
ExtremeBDS [4]

Answer:

t = 5.89 s

Explanation:

To calculate the time, we need the radius of the pulley and the radius of the sphere which was not given in the question.

Let us assume that the radius of the pulley (r_p) = 0.4 m

Let the radius of the sphere (r) = 0.5 m

w = angular speed = 150 rev/min = (150 × 2π / 60) rad/s = 15.708 rad/s

Tension (T) = 20 N

mass (m) = 3 kg each

\int\limits^0_t {Tr_p} \, dt=H_2-H_1\\( Tr_p)t=4rm(rw)\\( Tr_p)t=4r^2mw

t = \frac{4r^2mw}{Tr_P}

Substituting values:

t = \frac{4r^2mw}{Tr_P}= \frac{4*(0.5)^2*3*15.708}{20*0.4}=5.89s

7 0
3 years ago
Read 2 more answers
Which of the following statements is true?
hram777 [196]

All the radiation from stars is the result of nuclear fusion in their cores.

4 0
3 years ago
Read 2 more answers
Snorkeling by humans and elephants. When a person snorkels, the lungs are connected directly to the atmosphere through the snork
fgiga [73]

Answer:

2354.4 Pa

40221 Pa

Explanation:

\rho = Density = 1000 kg/m³

g = Acceleration due to gravity = 9.81 m/s²

h = Depth

The pressure difference would be

\Delta P=\rho gh\\\Rightarrow \Delta P=1000\times 0.24\times 9.81\\\Rightarrow \Delta P=2354.4\ Pa

The pressure difference in the first case is 2354.4 Pa

\Delta P=\rho gh\\\Rightarrow \Delta P=1000\times 4.1\times 9.81\\\Rightarrow \Delta P=40221\ Pa

The pressure difference in the second case is 40221 Pa

7 0
3 years ago
Other questions:
  • What is an cell described in
    5·1 answer
  • Alexander has a mass of 70 kilograms. his apartment is on the second floor. 5 meters yo from ground level . How much work does h
    14·1 answer
  • What can scientist learn from studying sedimentary rocks?
    5·2 answers
  • Half-life is the time a. For half of a material to decay into energy b. For half of a material to decay into free protons, neutr
    13·1 answer
  • A car goes from point A to point B, five miles away and then returns to point A. The car is going 15 mph.
    14·1 answer
  • A piece of copper wire is formed into a single circular loop of radius 9.1 cm. A magnetic field is oriented parallel to the norm
    5·1 answer
  • Calculate the magnitude of the normal force on a 25.2 kg block in the following circumstances. (Enter your answers in N.) HINT (
    11·1 answer
  • Bees can see into the ultraviolet region of the electromagnetic spectrum. Compared with humans, bees can sense
    6·2 answers
  • Help plz<br><br>Does everyone in the earth experience solar eclipse?​
    6·2 answers
  • What is the relationship between frequency and degree of refraction?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!