The potentially dangerous part of the electromagnetic spectrum is produced to generate power with nuclear energy A. Gamma Rays B.Radio Waves C.Microwaves D. Infrared Rays

Answers

Answer 1

Answer:

Answer:A- Gamma rays

Explanation:

Gamma rays are most dangerous among all the given rays because it has the highest frequency i.e. high penetrating tendency. They can also pass through bones and teeth and this is the reason for their potential hazard.

They can destroy the living cell, initiate gene mutation and can cause cancer.

But they can also be used for destroying cancer cells.

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What are two ways in which all types of precipitation are alike

Answers

The two ways in which all types of precipitation are alike they all come from the clouds,they are all formed by precipitation.

What is precipitation ?

Any liquid or frozen water that condenses in the atmosphere and falls to the ground is known as precipitation. Rain, sleet, and snow are only a few of its various manifestations. Precipitation is one of the three main processes that make up the global water cycle, together with evaporation and condensation.

Rain, sleet, and snow are only a few of its various manifestations. Precipitation is one of the three main processes that make up the global water cycle, together with evaporation and condensation. Water vapour in the clouds condenses into increasing-sized droplets of water, forming precipitation.

The most common forms of precipitation that come from cloud-borne particles are rain, snow, freezing rain, and sleet. The changes in temperature are the primary distinction between these various types of precipitation.

Thus, The two ways in which all types of precipitation are alike they all come from the clouds,they are all formed by precipitation.

To learn more about the precipitation, follow the link;

brainly.com/question/18109776

#SPJ2

1. they all come from the clouds 2.they are all formed by precipatation. hope this helps enjoyyyyyy!!!!!!!!!!!!!

A horizontal 20.-newton force is applied to a 5.0-kilogram box to push it across a rough,horizontal floor at a constant velocity of 3.0 meters per second to the right.

Calculate the coefficient of kinetic friction between the box and the floor. [Show all work, including
the equation and substitution with units]

Answers

The formula to work out the coefficient of dynamic (kinetic) friction is F=uR where F is the force applied, u is the coefficient of dynamic friction, and R is the reaction force. This is based on the principle the object is moving at a constant velocity which is the case in this question.

Rearranging this we get u=F/R
Substituting in the values we get u=20/50=2/5=0.4

Therefore the coefficient of kinetic friction between the box and the floor is 0.4

The coefficient of kinetic friction between the box and the floor will be $\boxed{0.4}$ .

Further Explanation:

Given:

The mass of the box is $5\,{\text{kg}}$ .

The force applied on the box is $20\,{\text{N}}$ .

The constant velocity at which the box moves is $3\,{{\text{m}}\mathord{\left/{\vphantom{{\text{m}}{\text{s}}}}\right.\kern-\nulldelimiterspace}{\text{s}}}$ .

Concept:

The box is pushed on the rough floor and due to this; the box will experience a friction force acting in the direction opposite to the motion of the box.

Since the box moves with a constant velocity of $3\,{{\text{m}}\mathord{\left/{\vphantom{{\text{m}}{\text{s}}}}\right.\kern-\nulldelimiterspace}{\text{s}}}$ , the acceleration of the box will be considered as zero.

From Newton’s second law of motion, as the acceleration of the box is zero, the net force acting on the box is zero.

$\boxed{{F_(net)}=m* a}$

The free-body diagram of the box moving on the rough floor is as shown in figure attached below.

From the above explanation, in order to make the net force zero, the friction acting on the box should be equal to the force applied on the box.

${F_(friction)}={F_(applied)}$

The friction force acting on the bxlock is:

$\begin{aligned}{F_(friction)}&=\mu N\n&=\mu mg\n\end{aligned}$

Substitute the value of friction force in the above expression.

$\begin{aligned}\mu mg&={F_(applied)}\n\mu\left({5*10}\right)&=20\n\mu &=\frac{{20}}{{50}}\n&=0.4\n\end{aligned}$

Thus, the coefficient of kinetic friction between the box and the floor will be $\boxed{0.4}$ .

Learn More:

1. A 30.0-kg box is being pulled across a carpeted floor by a horizontal force of 230 N brainly.com/question/7031524

2. Choose the 200 kg refrigerator. Set the applied force to 400 n (to the right). Be sure friction is turned off brainly.com/question/4033012

3. Which of the following is not a component of a lever brainly.com/question/1073452

Answer Details:

Grade: High School

Subject: Physics

Chapter: Friction

Keywords:

Horizontal 20N force, 5 kg box, push, a rough horizontal floor, constant velocity, friction force, coefficient of kinetic friction, box and the floor.

A truck accelerates 2 m/s2 when it is empty. If the truck is filled so that it has twice the mass and the same amount of net force is applied, how much will the truck accelerate?8 m/s2
1 m/s2
4 m/s2
2 m/s2

Answers

Answer :

a = 1 m/s^2

Explanation:

Given information

Net force is a constant

The mass of the truck is $m_(o)$

Initial acceleration $a_(o)$ = 2 m/ $s^(2)$

The mass of the truck is increased twice as much

$F_(net)= m_(o) a_(o)$ = ma

$F_(net)= m_(o) a_(o)$ = $2m_(o)$ a

a= $\frac{a_(o) } {2}$

a = 2/2

a = 1 m/ $s^(2)$

This is a conceptual problem, I’ll try to upload a picture:

Fluorine, chlorine, bromine, and iodine are part of a family called a. noble gases. b. metalloids. c. halogens. d. alkali metals.

Answers

Answer: Option (c) is the correct answer.

Explanation:

The elements Fluorine, chlorine, bromine, and iodine all belong to group 7. All of these are electron deficient and all of them are non-metals.

Also, it is known that elements of group 7 are also known as halogens because the word halogen means 'salt former' and compounds which contain halogens are known as salt.

Thus, we can conclude that Fluorine, chlorine, bromine, and iodine are part of a family called halogens.

c. halogens
they are under group 7

The SI base unit for measuring temperature is the degree Celsius.
a. True
b. False

Answers

a. True. The SI unit for measuring temperature is the degree Celsius

B. False

because Temperature (T) has SI unit Kelvin (K)

A box weighing 18 N requires a force of 6.0 N to drag it at a constant rate. What is the coefficient of sliding friction?

Answers

Use f = uN to find the coefficient of friction. We know friction (6.0 N) and the normal forces (18 N), so plug them in to the equation which gives us 6 = u18. Solving for u: u = 0.33

The Correct Answer Is 0.33.

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In 2000, NASA placed a satellite in orbit around an asteroid. Consider a spherical asteroid with a mass of 1.50×1016 kg and a radius of 9.00 km .What is the speed of a satellite orbiting 4.60 km above the surface?

Elements that are what tend to be in the what state at room temperature.

What material would make the best heating element for an electric range?a. a resistor, which converts some electric energy to thermal energy b. an insulator, which stops the flow of electricity c. a conductor, which carry electric currents d. a conductor surrounded by an insulator

Can someone explain this please?(: