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3 years ago

What are some of the ways of reducing your background sources of radiation

Physics

1 answer:

galben [10]3 years ago

7 0

Radiation is a form of energy traveling through space (air) as particles or waves ..

I hope this help you

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Which of the following is a source of thermal energy that is absorbed by Earth's atmosphere?

Mazyrski [523]

Answer:

100% of the energy entering earth's atmosphere comes from the sun. ~50% of the incoming energy is absorbed by the earth's surface i.e. the land and oceans.

8 0

3 years ago

A small object with a 5.0-mC charge is accelerating horizontally on a friction-free surface at 0.0050 m/s2 due only to an electr

kolbaska11 [484]

Answer:

$0.002 N/C$

Explanation:

Parameters given:

Charge of object, q = 5 mC = $5 * 10^{-3} C$

Acceleration of object, a = $0.005 m/s^2$

Mass of object, m = 2.0 g

The Electric field exerts a particular force on the object, causing it to accelerate (Electrostatic force).

We know that Electrostatic force, F, is given in terms of Electric field, E, as:

F = qE

This means that the object exerts a force of -qE on the Electric force (Action with equal and opposite reaction).

The object also has a force, F, due to its acceleration a. This force is the product of its mass and acceleration. Mathematically:

F = ma

Equating the two forces of the object, we get:

-qE = ma

=> $E = \frac{-ma}{q}$

Solving for E, we have:

$E = \frac{-2 * 10^{-3} * 0.005}{5 * 10^{-3}} \\\\\\E = -0.002 N/C$

The magnitude will be:

$|E| = |-0.002| N/C = 0.002 N/C$

The electric field has a magnitude of 0.002 N/C.

4 0

3 years ago

A cannon with a muzzle velocity of 500. meters per second fires a cannonball at an angle of 30.° above the horizontal. What is t

Reil [10]

Complete question

A cannon with a muzzle velocity of 500. meters per second fires a cannonball at an angle of 30.° above the horizontal. What is the vertical component of the cannonball's velocity as it leaves the cannon?

A 0.0 m/s

B 250. m/s

C 433 m/s

D 500. m/s

Answer:

The correct option is C

Explanation:

From the question we are told that

The velocity is $v = 500 \ m/s$

The angle is $\theta = 30^o$

Generally the vertical component of the canon ball is mathematically represented as

$v_y = v * cos (30 )$

=> $v_y = 500 * cos (30 )$

=> $v_y = 433 \ m/s$

7 0

3 years ago

Read 2 more answers

Which of the following has the same unit as the moment of force?

saw5 [17]

Answer:

Work

Explanation:

Units are

$kg {m}^{2} {s}^{ - 2} = newtons \times meter$

6 0

3 years ago

Read 2 more answers

light inside the thin glass tube of a laparoscopic surgical device strikes the edge of the glass tube and is entirely reflected

vovangra [49]

Light striking the walls of the glass cylinder and reflecting in inside tube itself is a phenomenon known as total internal reflection.

<h3>What word best describes reflection, in your opinion?</h3>

Reflection is often synonymous with the verbs cogitate, contemplate, reason, hypothesize, and think. All of these expressions mean "using one's intellect, judgment, or inference faculties," but the word "reflect" means carefully considering a recollection.

<h3>What does it mean to give reflection some thought?</h3>

constant verb When you ruminate, you seriously consider something. Alternatives include thinking, analyzing, planning, and thinking. More phrases containing "reflect" Reflecting feelings is the act of observing a person's verbal and nonverbal signs for their emotions and feelings, then immediately communicating (or reflecting) those attitudes to the user or customer.

To know more about reflection visit:

brainly.com/question/8714151

#SPJ4

8 0

1 year ago