Gamma radiation is...
An electromagnetic wave
Safe
A helium nucleus
An electron

Answers

Answer 1

Answer:

A. Gamma radiation is an electromagnetic wave.

Explanation:

" Gamma ray is an electromagnetic radiation from a nucleus. It is not safe.

" Nucleus of a helium atom is called Alpha particle.

..

Hope this answer can help you,


Related Questions

A boat at anchor is rocked by waves whose crests are 28 m apart and whose speed is 7 m/s. How often do these waves reach the boat? State your answer in terms of frequency (Hz) and period T (seconds).

Answers

Answer:

0.25 Hz

4 s

Explanation:

Speed = wavelength × frequency

7 m/s = 28 m × f

f = 0.25 Hz

Frequency = 1 / period

0.25 Hz = 1 / T

T = 4 s

Which is closer to the Sun—Mercury or the Earth? A. They are the same distance from the Sun. B. The Earth is closer to the Sun than Mercury is. C. Mercury is closer to the Sun than the Earth is. D. The distance from the Earth to the Sun cannot be determined.

Answers

Answer:

the answer is C

Explanation:

I know because mercury is the first planet closest to the sun

You arrive in my class 45 seconds after leaving math which is 90 meters away. How fast did you travel?

Answers

Answer:

2m/s

Explanation:

speed = distance÷time

speed =90÷45=2m/s

The acceleration of gravity means that for each second that passes, falling
objects move 9.8 meters.
A. True
B. False

Answers

Answer:

B.

Explanation:

There are many factors that go into the speed that an object drops. For example, aerodynamics, weight, and other things.

A boat travels at 30 mph for a huge, solid cliff that is about 3,000 meters away. When the horn on the boat makes a toot, you can hear the initial sound directly from the horn and also an echo from the cliff wall some time later. How does the frequency of the echo compare with the frequency of the horn before the ship moved?
Group of answer choices

The frequency of the echo is slightly increased.

The frequency of the echo is slightly decreased.

The frequency is unchanged.

Not enough information to determine.

Answers

Answer:The frequency of the echo is slightly decreased

Explanation:

Given

speed of boat [tex]=30\ mph[/tex]

cliff is [tex]3000\ m[/tex] away

when boat is still , suppose t is the time taken by the echo to reach observer on the boat

But as soon as boat starts moving  the distance between cliff and boat decreasing and time for echo to reach observer also decreases

and we know [tex]time \propto \frac{1}{frequency}[/tex]

therefore frequency of the echo slightly decreased.

A car is going 60.0 mi/h and has to stop in 6.0 seconds. What is the car’s acceleration?

Answers

Explanation:

Convert mi/h to ft/s.

60.0 mi/h × (5280 ft/mi) × (1 h / 3600 s) = 88.0 ft/s

Find the acceleration.

a = Δv / Δt

a = (0 ft/s − 88.0 ft/s) / 6.0 s

a = -14.7 ft/s²

The driver must accelerate the car at the average rate of

- 10 mile / hour-second

for 6 seconds .

How is a problem and solution text
structure different from a cause and
effect text structure?​

Answers

Text Structure: The author's method of organizing a text. Cause/Effect: Causes stem from actions and events, and effects are what happen as a result of the action or event. Compare/Contrast: Placing together characters, situations, or ideas to show common or differing features in literary selections.

How did Confucius believe that kings should behave? (Site 1) HURRY!!!!!​

Answers

Answer:

Confucius believe that kings should behave RIGHTLY

Explanation:

CONFUCIUS  believe that kings are supposed to behave rightly and rule justly ( according to the codes of ethics )  of the land and also live a right and just life.

Confucianism is an ancient philosophy established as far back as the fifth century by Confucius it's main aim was to guide the ancient and modern systems of government in the whole of Asia. it is called a religion by some while some call it a code of ethics and way of leadership

Answer:

CONFUCIUS  believe that kings are supposed to behave rightly and rule justly ( according to the codes of ethics )  of the land and also live a right and just life.

Confucianism is an ancient philosophy established as far back as the fifth century by Confucius it's main aim was to guide the ancient and modern systems of government in the whole of Asia. it is called a religion by some while some call it a code of ethics and way of leadership

Explanation:

Solving elastic collisions problem the hard way

Answers

Answer:

Solving elastic collisions problem the hard way

Explanation:

perfect drawing

David delivers meals to elderly people once a week. He uses a cart to move the meals. The cart has four smooth wheels. Which type of friction acts between the cart wheels and the sidewalk?

A. sliding friction
B. rolling friction
C. fluid friction
D. static friction

Answers

Answer:Rolling

Explanation:

Since the wheels roll, the wheels do not rub against the sidewalk, So it cannot be sliding. The wheels are not a liquid, and there shouldnt be any static.

Um joalheiro recebe uma encomenda onde ele deve fazer alguns anéis de prata. Ele dispõe de um pedaço de 100 g de prata mas precisa derrete-lo para colocar a prata em moldes específicos e construir esses anéis. O principal problema desse procedimento é que a temperatura de fusão da prata é muito alta e requer condições especiais. A prata possui temperatura de fusão de 961 ºC, calor latente de fusão de 21 cal/g e calor específico no estado sólido igual a 0,056 cal/gºC. Determine a quantidade de calor aproximada para fundir as 100 g de prata sabendo que sua temperatura inicial é de 20°C. A 2,1 kcal B 0,5 kcal C 7,4 kcal D 5,3 kcal E 6,3 kcal

Answers

Answer:

Correct option: C -> 7.4 kcal

Explanation:

First we need to find the energy necessary to heat the silver from 20°C to 961°. The change in temperature is 961 - 20 = 941, so the energy necessary is:

941 * 0.056 * 100 = 5269.6 cal

Then, for the melting process, we will need:

21 * 100 = 2100 cal

So the total energy needed is:

5269.6 + 2100 = 7369.6 cal = 7.4 kcal

Correct option: C

Jada’s family pulls into a gas station. Her mother fills up the car’s tank with fuel from a pump. Jada notices this symbol on the pump.

Image shows a pump at a gas station with a symbol of corn on it.

What do you think the symbol indicates?
A. This gasoline is to be used only in farm vehicles.
B. It is not safe to have gasoline around food products.
C. This gasoline can also be used as a fertilizer to help plants grow.
D. A biomass has been used as part of the fuel.

Answers

Answer:

D- a biomass has been used as a part of the fuel.

An astronaut's training centrifuge has a radius of 4.0m. If it goes round once every 2.5s, calculate the velocity of the end of the centrifuge arm (4.0m from the pivot).

Answers

Answer: 10.048m/s

Explanation:

We know that the radius is r = 4.0m

And for rotating things, the tangential velocity (or the velocity of the end of the centrifuge arm) can be calculated as:

v = r*w

The period is T = 2.5s,

This means that if sin(w*t) describes this situation, we have that:

sin(w*t) = sin(w*(t + T))

and we know that:

sin(w*0) = 0

sin(w*(0 + T)) = Sin(w*T) = 0

this means that w*T = 2*pi

w = 2*pi/T = 2*pi/2.5s = (2*3.14)/2.5 s = 2.512 hz

Then the velocity can be calculated as

v = r*w = 4.0m*2.512hz = 10.048m/s

When a warm air mass and cold air mass come together, like a warm front and cold front, a typical outcome is rain. What explains why rain forms in this situation?

A. The cold air causes the moisture in the warm air to condense and precipitate as rain.
B. The cold air is moving faster than the warm air, which causes rain.
C. Because the cold air is denser, it causes rain.
D. The two air masses neutralize each other, which results in clouds that produce rain.

Answers

Answer:

A,when the two air masses meet,the cold air cools the block if warm air,causing it to condense and form stratus clouds( blankets of blank clouds that form when air rises slowly e.g. a warm air mass meets a cold one). Eventually when the cloud becomes saturated precipitation falls from them(precipitation is moisture in any form that falls from the atmosphere).

Mg + __HCl  → MgCl2 + H2

What coefficient is needed to balance the equation?

Answers

Answer:

The coefficient of the blank is 2

Explanation:

The balanced equation is Mg + 2HCl -> MgCl2 + H2 .

Answer:

Mg + 2HCl  → MgCl2 + H2

Explanation:

Which has greater kinetic energy: a bullet that has a mass of 0.05 kg travelling at 2500 m/s, or a lorry that has a mass of 4500 kg and is moving at 50 m/s?

Answers

Answer:

its the lorry

Explanation:

The kinetic energy of the truck will be, 5625000 kg m/s and the kinetic energy of the bullet will be 156250 kg m/s. So the kinetic energy of the lorry will be higher than the kinetic energy of the Bullet.

What is Kinetic Energy?

Kinetic energy is a type of energy that a particle or an object possesses as a result of its motion. By exerting a net force on an item, work is done, which transfers energy; as a result, the object accelerates and obtains kinetic energy.

A moving item or particle's ability to move depends on both its mass and velocity. This is known as kinetic energy. Translation (or movement along a path from one location to another), rotation about an axis, vibration, or any combination of motions are examples of possible types of motion.

According to the question,

K.E of the lorry: 1/2 (4500)(50)²

K.E of the lorry = 5625000 kg m/s.

K.E of the bullet: 1/2(0.05)(250)²

K.E of the bullet = 156250 kg m/s

Hence, the kinetic energy of the lorry is greater than the kinetic energy of the bullet.

To get more information about Kinetic Energy :

https://brainly.com/question/12669551

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Read the scenario. A car starts 10 m north of a reference point. It moves at a constant velocity over the next 5 s, reaching a position of 10 m south of the reference point. What is the car’s average velocity? 2 m/s south 4 m/s north 0 m/s 4 m/s south

Answers

Answer:

4 m/s south

Explanation:

This is a pretty easy one.

Assume that the car has a reference point ragged x

We also know that the car starts moving at a point 10 m North of X. It moves steadily at a uniform velocity and ended at a position 10 m south of X.

If x is the reference point, we can infer that the car moves a total distance of, 10 m + 10 m.

Thus, the total distance moved by the car is 20 m.

It is also stated that it achieves that distance in 5 seconds.

Velocity is defined as the ratio of distance with respect to the tome taken, i.e V = d/t

Then, the velocity is

V = 20 / 5 = 4 m/s

Considering the fact that the car left and moved towards the south. We can say that it moved 4 m/s South.

WILL NAME BRAINLIEST!!!!!!
Match each word with its definition. Match the items in the left column to the items in the right column. 1. Nucleus of a helium atom 2. Electron ejected by a nucleus 3. Electromagnetic radiation from a nucleus 4. all emissions from a nucleus 5. Nuclear particle that has no charge 6. Nuclear particle that has a positive charge 7. One of several different nuclei of an element 8. Equivalent to the mass discrepancy in a nucleus 9. Measure of a radioactive materials lifetime 10. Unit of nuclear mass

amu
half-life
beta particle
binding energy
proton
radiation
isotope
neutron
gamma ray
alpha particle

Answers

Answer:

Please see the answers in the picture attached below.

Explanation:

Hope this answer can help you. Have a nice day!

. How does the intensity of sunlight received affect Earth’s temperatures?

Answers

When the sun's rays strike Earth's surface near the equator, the incoming solar radiation is more direct (nearly perpendicular or closer to a 90˚ angle). Therefore, the solar radiation is concentrated over a smaller surface area, causing warmer temperatures.

explain how muscles and bones work together to help bend the arm.

Answers

By contracting, muscles pull on bones and allow the body to move. ... For example, the biceps and triceps muscles work together to allow you to bend and straighten your elbow. When you want to bend your elbow, your biceps muscle contracts (Figure below), and, at the same time, the triceps muscle relaxes.

Answer:

By contracting, muscles pull on bones and allow the body to move. ... For example, the biceps and triceps muscles work together to allow you to bend and straighten your elbow. When you want to bend your elbow, your biceps muscle contracts (Figure below), and, at the same time, the triceps muscle relaxes.

Calculate the energy that 1.5 kg of mass contains

Answers

Answer:

[tex]4.5(10)^8[/tex] joules

Explanation:

Mass–energy equivalence is the principle that says that anything that has mass has an equivalent amount of energy. Converse is also true.

The relation between energy and mass is given by [tex]E=mc^2[/tex]

Here, E denotes energy, m denotes mass and c denotes speed of light

Mass [tex](m)=1.5\,\,kg[/tex]

Speed of light (c) = 3 × [tex]10^8[/tex] m/s

Therefore,

[tex]E=1.5(3)(10)^8=4.5(10)^8[/tex]  joules.

The S.I. unit of energy is joules which is equal to [tex]1\,\,kg\,\,m^2/s^2[/tex]

explain how muscles and bones work together to help bend the arm.

Answers

Answer:

Bones make sure the arms structure is stable while the muscle is the one actively moving it and carrying out actions.

What might be collected to monitor the amount of excess nitrogen in the local water system

Answers

Answer:

If excess nitrogen is found in the crop fields, the drainage water can introduce it into ... have aquifers that can supply a lot of freshwater very near the land surface.

A car slows down from 27.7 m/s
to 10.9 m/s in 2.37 s.
What is its acceleration?

Answers

Answer:

a = (Vf - Vi) / t = (10.9 - 27.7) / 2.37 = -16.8 / 2.37 = -7.09 m/s/s

negative means slowing down

Explanation:

Each gas sample has the same temperature and pressure. which sample occupies the greatest volume? each gas sample has the same temperature and pressure. which sample occupies the greatest volume? 40.0 gar 20.0 gne 20.0 gh2 4.0 ghe

Answers

Answer:

20 gram of H as the greastest volume

Explanation:

Each gas sample has the same temperature and pressure. which sample occupies the greatest volume? each gas sample has the same temperature and pressure. which sample occupies the greatest volume? 40.0 gar 20.0 gne 20.0 gh2 4.0 ghe

Given that,

40.0 g of Ar

20.0 g of Ne

20.0 g of h

24.0 g of he

The ideal gas equation ; Pv = nRT

where P is the pressure, V is the volume, R is the gas constant, T is the temperature, n is the number of mole

which is equal to

n = m / M

where m is the given mass

M is the molar mass

The given gas sample are at the same temperature and pressure,

So, the temperature, pressure and gas constant are fixed.

Therefore the volume is proportional to the given mass and molar mass

V ∝ m/M

Substitute the given mass and molar mass of given masses for comparison

No of mole of Ar = mass / molar mass

= 40 / 40 = 1 mole

No of mole of Ne = mass / molar mass

= 20 / 20 = 1 mole

No of mole of h = mass / molar mass

= 20 / 1 = 20 mole

No of mole of he = mass / molar mass

= 24 / 4 = 6 mole

Hence, 20 gram of H as the greastest volume


a 25 ohm resistor in an electric circuit draws a current of 5 amperes a certain amount of charge through the resistor in 36 seconds calculate the voltage

Answers

Answer:

V= 125volts

Explanation:

R =25ohms

I = 5 amp

V = ?

t = 36seconds

V = IR

V = 5× 25

V= 125volts

Q = It

Q = 5×36

Q = 180 coulombs

Q is the amount of charge.

PLEASE HELP!!

Wildcats, such as the lynx, are predators of rabbits. Which will MOST likely occur if a new, aggressive species of wolf is introduced into the ecosystem that is a predator of the lynx?


A.The new species population will consume the food that the rabbits eat.

B.The population of the rabbits in the ecosystem will increase.

C.The new species population will be consumed by the lynx.

D.The population of the lynx in the ecosystem will increase.

Answers

ans a: wild cats

ans b:yes

What is the current in a 160V circuit if the resistance is 2Ω?

Answers

Answer:

80 amperes

Explanation:

Current = Voltage/Resistance

160/2 = 80

A rocket, launched from rest, steadily increases speed to 33m/s over a 3.6s
interval before exhausting all the fuel. The rocket continues upward but slows
steadily to a stop 2.8s after running out of fuel.
How far did the rocket rise while burning fuel?

Answers

Answer:4 miles

Explanation:


What is power?

A. a magnitude of a force needed to move an object
B. how much work can be done in a given time
C. the distance over time that an object moves
D, The energy needed to create work

Answers

Answer:

The answer is B.

Explanation:

The formula of power is :

[tex]power = \frac{work \: done}{time} [/tex]

* Work done can be "Energy"

the answer is a. a magnitude of a force meeded to move an object
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