Answer:
Explanation:
= Distance covered = 1 m
= Time taken = 3.44 ns
c = Speed of light =
Velocity would be
Time in rest frame is given by
It lived before decaying
Answer:
Therefore,
a)
b)
c) distance from the sphere's surface = 1.8 cm
Explanation:
Given:
Radius, r = 11 cm = 0.11 m
Charge,
To Find:
a) electric field at the sphere's surface = ?
b) If V = 0 at infinity, what is the electric potential at the sphere's surface = ?
c) At what distance from the sphere's surface has the electric potential decreased by 320 V = ?
Solution:
Electric field at the sphere's surface is given as,
Where,
E = Electric Field,
Q = Charge
r = Radius
Substituting the values we get
Now, Electric Potential at point surface is given as,
Substituting the values we get
For distance from the sphere's surface has the electric potential decreased by 320 V,
So V becomes,
V = 2290 - 320 = 1970 Volt, then r =?
Substituting the values we get
Therefore the distance from the sphere's surface,
Therefore,
a)
b)
c) distance from the sphere's surface = 1.8 cm
The correct answer is not listed among the choices.
m = w/g
m = 1,125 / 9.8
m = 114.8 kilograms
Answer:
Explanation:
Diffraction is observed when a wave is distorted by an obstacle whose dimensions are comparable to the wavelength. The simplest case corresponds to the Fraunhofer diffraction, in which the obstacle is a long, narrow slit, so we can ignore the effects of extremes.
This is a simple case, in which we can use the Fraunhofer single slit diffraction equation:
Where:
Solving for λ:
Replacing the data provided by the problem:
Answer:
The answers to the questions are
1. Sound <u>e</u>nergy
2. Co<u>n</u>ductor
3. Flow
4. Thermal ener<u>g</u>y (g underlined)
5. Elect<u>r</u>ic current
6. Insulator
7. Light energ<u>y</u>
8. El<u>e</u>ctric circuit
The underlined letters are, e, n, g, r, y, e which can be rearranged to spell energy
Explanation:
1. Sound energy is the wave form of mechanical energy that is transferred by the vibration of the of the medium through which it propagates
2. An electrical conductor is used to conduct electricity from one point to another
3. An object or material flows when it has a smooth motion towards a given direction, such as a river
4. Thermal ener<u>g</u>y is the form of energy that is given off by a body as sensible heat that can be measured as a temperature by a thermometer
5. Electric current is the electricity in a circuit
6. An insulator is a material that limits the flow of electricity or heat
7. Light energy is the form electromagnetic energy which the eye can sense
8. An electric current flows an electric circuit which consist of a source of electricity and an path through which the electric current can easily flow.