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3 years ago

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Physics

1 answer:

MakcuM [25]3 years ago

6 0

Answer: Atmosphere and geosphere.

Geo-sphere is the solid part of the earth. Hydrosphere is the water part. The living things on the earth make up the biosphere. The gases, water vapors etc make up the atmosphere. When a volcanic eruption adds carbon dioxide to the air, the carbon-dioxide is being added from geosphere to the atmosphere. Hence, there is interaction between atmosphere and geosphere.

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Electric charge is uniformly distributed inside a nonconducting sphere of radius 0.30 m. The electric field at a point P, which

notsponge [240]

Answer:

The point that would have the same electric field as P is $z = 0.108 \ m$ from the center of the sphere.

Explanation:

From the question we are told that

The radius of the sphere is $r = 0.30 \ m$

The Electric field at point P is $E = 15000N/C$

The distance of point P from the center is $D = 0.50 \ m$

Since the electric is directed radially outward it mean this it would be felt both inside and outside the sphere

The Electric field inside the sphere at a distance z is mathematically represented as

$E_i = \frac{k q x}{r^3}$

where k is the coulomb's constant with a value $9 *10^9 \ kg \cdot m^3 \cdot s^{-4 } \cdort A^{-2 }$

q is the charge

The Electric field inside the sphere at a distance D is mathematically represented as

$E _o = \frac{k q}{D^2}$

To obtain the point of equal electric field

$E_i = E_o$

$\frac{k q z}{r^3} = \frac{kq }{D^2}$

We have that

$z = \frac{r^3 }{D^2}$

Substituting values

$z = \frac{(0.3)^3 }{(0.5)^2}$

$z = 0.108 \ m$

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2 years ago

Describe four energy changes that happen in the process.

musickatia [10]

Driving a motor........

chemical energy is converted into kinetic energy.

Falling off of cliff

.........gravitational potential energy is converted into kinetic energy.

Hydroelectric energy generation

.......gravitational potential energy is converted into kinetic energy (i.e. driving a generator), which is then converted into electrical energy.

Nuclear power generation

.........mass is converted into energy, which then drives a steam turbine, which is then converted into electrical energy.

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2 years ago

Regardless of their frequency, wavelength, or energy, all electromagnetic waves: A. travel only through the vacuum of space. B.

agasfer [191]

All electromagnetic waves travel at the same speed in a vacuum: 3.0 x 10^5 (300,000) kilometres per second. some electromagnetic waves are part of the visible light spectrum and some do emit harmful radiation, but certainly not all. they travel fine on earth without the vacuum of space too.

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2 years ago

A tire measures 20 inches in diameter. How many revolutions will the tire have completed when it has traveled 100 yards? Express

Soloha48 [4]

<h2>Number of revolutions required to travel 100 yards is 57.</h2>

Explanation:

Diameter of tire,D = 20 inches

Perimeter of tire = πD

Perimeter of tire = π x 20 = 62.8 inches

Distance traveled = 100 yards

1 yard = 36 inches

Distance traveled = 100 x 36 = 3600 inches

In one revolution it travels 62.8 inches.

$\texttt{No of revolutions = }\frac{3600}{62.8}\\\\\texttt{No of revolutions = }57.32\\\\\texttt{No of revolutions = }57$

Number of revolutions required to travel 100 yards is 57.

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2 years ago

What are gamma rays? How are they used?

Karo-lina-s [1.5K]

I know it, X-rays, gamma rays and beta particles are all used in medicine to treat internal organs. X-rays are produced by firing electrons at a metal target and gamma rays are emitted by the nucleus of radioactive atoms. Gamma rays are used to kill cancer cells, to sterilise medical equipment and in radioactive tracers.

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2 years ago

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