All categories

3 years ago

What are some of the useful properties of current electricity

Physics

2 answers:

Nady [450]3 years ago

5 0

Conduction and heat
Hope I helped

Artist 52 [7]3 years ago

3 0

Conduction, convection and heat

You might be interested in

Write down the role played by four digestive juices in digestion and the

valentinak56 [21]

Answer:

Digestive juices secreted by various organs such as salivary glands in the mouth, stomach, liver and pancreas help in the process of digestion of food. Saliva secreted by the salivary glands in the mouth aids in the breakdown of starch present in the food to simple sugar

Explanation:

3 0

3 years ago

Eld a distance r1 from P. The second particle is then released. Determine its speed when it is a distance r2 from P. Let q = 3.1

zheka24 [161]

Answer:

$v_{f}=1721.1m/s$

Explanation:

Given data

q = 3.1 µC

m = 47 mg

r1 = 0.83 mm

r2 = 2.5 mm.

As we know that:

$dK=-dU\\(1/2)mv_{f}^{2}-(1/2)mv_{i}^{2}=-(\frac{kq^{2} }{r_{f}}-\frac{kq^{2} }{r_{i}} )\\ (1/2)*(47*10^{-6}kg )v_{f}^{2}-(1/2)*(47*10^{-6}kg)(0)=-[(\frac{(9*10^{9}(3.1*10^{-6})^{2} }{2.5*10^{-3}}-(\frac{(9*10^{9}(3.1*10^{-6})^{2} }{0.83*10^{-3}} )]\\2.35*10^{-5} v_{f}^{2}=69.61\\v_{f}=\sqrt{\frac{69.61}{2.35*10^{-5}} }\\v_{f}=1721.1m/s$

5 0

3 years ago

The Earth's crust is made of tectonic plates. These plates are constantly in motion. How are earthquakes related to the movement

never [62]

Answer:

I'm pretty sure it's B because I studied this topic and I'm not right I'm sorry.

5 0

3 years ago

Read 2 more answers

All objects emit electromagnetic radiation as a result of _____.

Artist 52 [7]

One

All objects, every one, as long as the object is not at absolute zero (not very many objects are -- like no common object) emit electromagnetic radiation because they possess thermal (heat) energy.

The answer, surprisingly, is A.

Two

This is just an example of Snells law. The angles are with the normal.

Index of Refraction = sin(input angle) / sin(outgoing angle)

Index of Refraction = sin(angle incidence)/sin(angle of refraction)

Index of Refraction = Sin (36)/Sin(27.5)

Index = 1.28 (rounded)

8 0

3 years ago

A force of 120 N is applied to an object whose mass is 30 kg. The object's acceleration is:

Airida [17]

Answer:

C) 4.0 m/s²

Explanation:

Given data

Applied force (F): 120 Newton

Mass of the object (m): 30 kilograms

Acceleration of the object (a): to be determined

We can find the acceleration of the object using Newton's second law of motion.

F = m . a

a = F / m = 120 N / 30 kg = 4.0 m/s²

The acceleration of the object is 4.0 m/s².

8 0

3 years ago