Meiosis produce

A simple pendulum with a length of 2.23 m and a mass of 6.74 kg is given an initial speed of 2.06 m/s at its equi- librium posit

solniwko [45]

Answer:

a) T = 2.997 s

b) K = 14.3 J

c) φ = 0.444 rad

Explanation:

a) Determine its period

The pendulum simple’s period is:

T = 2π $\sqrt{\frac{l}{g} }$

Where l: Pendulum’s length

g = 9.8 m/s2

T = 2π $\sqrt{\frac{2.23}{9.8} }$

T = 2.997 s

b) Total energy

Initially his total energy is kinetic

K = $\frac{mv^{2} }{2}$

K = $\frac{(6.74)(2.06)^{2} }{2}$

K = 14.3 J

c) Maximum angular displacement

φ = $cos^{-1}(1-\frac{E}{mgl} )$

φ = $cos^{-1}(1-\frac{14.3}{(6.74)(9.8)(2.23)} )$

φ = 0.444 rad

4 0

3 years ago

Protons, neutrons, electrons, and a nucleus are

tatuchka [14]

It would be Atoms, they’re all made up of these tiny particles

8 0

3 years ago

What must happen to the electrons in a material to create an electric current?

zhenek [66]

You have to have electrons that are in the materials conduction band. Then you apply a voltage across the material.

8 0

4 years ago

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Technician A says that gears may be used to apply torque to other rotating parts. Technician B says that gears may be used to mu

Goryan [66]

Answer:

Both technicians are right.

Explanation:

Torque is defined as a rotational force that can be calculated by the formula T= F.d. Being F the force applied to a body to make it rotate and d the distance since the force is applied.

$T= F . d$

So technician A is saying that gear can apply a torque to another gear, and that is true because it’s applying a rotational force to the gear next to it, in simple terms -anytime I make something rotate, I'm generating a torque-. And for technician B, the torque also can vary as a function of the distance of the force applied (size of the gear), so, it can multiply the torque and change the rotation speed.

5 0

4 years ago

A scientist compares two samples of colorless gas present at the beginning and end of a lab process. She wants to determine whet

kompoz [17]

Joseph Priestley was born in Yorkshire, the eldest son of a maker of wool cloth. His mother died after bearing six children in six years. Young Joseph was sent to live with his aunt, Sarah Priestley Keighley, until the age of 19. She often entertained Presbyterian clergy at her home, and Joseph gradually came to prefer their doctrines to the grimmer Calvinism of his father. Before long, he was encouraged to study for the ministry. And study, as it turned out, was something Joseph Priestley did very well.

Aside from what he learned in the local schools, he taught himself Latin, Greek, French, Italian, German and a smattering of Middle Eastern languages, along with mathematics and philosophy. This preparation would have been ideal for study at Oxford or Cambridge, but as a Dissenter (someone who was not a member of the Church of England) Priestley was barred from England's great universities. So he enrolled at Daventry Academy, a celebrated school for Dissenters, and was exempted from a year of classes because of his achievements.

After graduation, he supported himself, as he would for the rest of his life, by teaching, tutoring and preaching. His first full-time teaching position was at the Dissenting Academy in Warrington. (Although obviously brilliant, original, outspoken and, by one report, of "a gay and airy disposition," Priestley had an unpleasant voice and a sort of stammer. That he made a living through lectures and sermons is further evidence of his extraordinary nature.)

https://www.acs.org/content/acs/en/education/whatischemistry/landmarks/josephpriestleyoxygen.html

8 0

3 years ago

Read 2 more answers