All categories

3 years ago

Power can be expressed

Physics

1 answer:

Komok [63]3 years ago

5 0

By definition Power is energy per second. As units the Watt, and a Watt is joules/second (2)

You might be interested in

Binding of a signaling molecule to which type of receptor leads directly to a change in the distribution of substances on opposi

Mrac [35]

When two sides of a membrane are in contact with each other, the distribution of ions will alter as a result of the binding of a signal molecule to a ligand-gated ion channel.

<h3>What is a ligand-gated ion channel?</h3>

Ligand-gated ion channels (LGICs) are membrane proteins that are structurally integral and feature a pore that permits the controlled passage of particular ions across the plasma membrane. The electrochemical gradient for the permeant ions drives the passive ion flux.

When a chemical ligand, such as a neurotransmitter, attaches to the protein, ligand-gated ion channels open. Changes in membrane potential cause voltage channels to open and close. When a receptor physically deforms, as in the case of pressure and touch receptors, mechanically-gated channels open.

Learn more about ligand-gated ion channel here:

brainly.com/question/15215628

#SPJ4

3 0

2 years ago

An air-filled parallel-plate capacitor has plates of area 2.30 cm2 2 separated by 1.50 mm. The capacitor is connected to a 12.0-

Gnoma [55]

Answer:

$1.357\times 10^{-12}$

Explanation:

Relevant Data provided

Area which indicates A = 2.3 cm^2 = 2.3 x 10^-4 m^2

Distance which indicates d = 1.50 x 10^-3 m

Voltage which indicates V = 12 V

According to the requirement, the computation of value of its capacitance is shown below:-

$Capacitance, C = \frac{\epsilon oA}{D}$

$= \frac{= 8.854\times 10^{-12}\times 2.3\times 10^{-4}}{(1.5 \times 10^{-3})}$

= $1.357\times 10^{-12}$

Therefore for computing the capacitance we simply applied the above formula.

4 0

3 years ago

a 0.13 kg stopper is attched to a 0.93 m length of string. the stopper is swung in.a horizontal circle making one revolution in

Crazy boy [7]

The speed of the stopper is 4.95 m/s, while the centripetal force on the stopper and the tension in the string is 3.42N each.

The mass of the stopper is 0.13 Kg, the length of the string to which it is attached is 0.93 m. The stopper swung and made one revolution in 1.18 seconds, so the time period of revolution of the stopper is 1.18 seconds.

The relation between the time period and the angular speed is,

T = 2π/W

W is angular speed and T is the time period of revolution.

Putting values,

1.18 = 2π/W

W = 5.32 rad/s.

The speed of the stopper can be found as,

v = rW

r is the length of the string,

V = 4.95 m/s.

The centripetal force on the stopper is given by,

F = MV²/r

Putting values,

F = 0.13 x 4.95 x 4.95/0.93

F = 3.42 N.

The tension in the string will be equal to the centripetal force on the stopper, so, the tension is 3.

42 N.

To know more about centripetal force, visit,

brainly.com/question/20905151

#SPJ4

8 0

1 year ago

Ultraviolet rays can cause skin cancer in humans and other living things. Explain why the depletion of the ozone layer by pollut

Charra [1.4K]

Teh humans are more revealed to the sun and that causes cancer because of all the uv rays and the ozone is the only thing thats helping us from uv rays

6 0

3 years ago

Read 2 more answers

Iron filings scattered around a magnet will be most strongly drawn toward the _____.

victus00 [196]

<span>The answer is towards <span>the poles. This is because, at the poles of the magnet, the magnetic field lines get closer together hence indicating that the magnetic force is stronger here. The fields are closest together at the center of the magnet and farthest at the outside side of the magnet. </span></span>

8 0

3 years ago

Read 2 more answers