A: screwdriver
B: Hamer
D: Saw
C: Axe

Answer:

The ocean plate will sink because it is much more dense than the continental plate.

Let me know if this helps!

The work per unit charge required to move a charge between two points in an electric circuit electric potential difference. The right option is D) potential difference

Potential difference can be defined as the work done in moving a unit charge from one point to another in an electric field. The S.I unit of potential difference is volts (V).

From the question,

Hence, from the above, the right option is D) Potential difference

Learn more about potential difference here: https://brainly.com/question/24220726

Strange as it may seem, the statement in the question appears to be TRUE.  

-- Before the shot, neither the cannon nor the ball is moving, so their combined momentum is zero.  

-- Since momentum is conserved, we know immediately that their combined momentum AFTER the shot also has to be zero.

-- (20g is rather puny for a "cannonball" ... about the same weight as four nickels. But we'll take your word for it and just do the Math and the Physics.)

-- Momentum = (mass) x (velocity)

After the shot, the momentum of the cannonball is

(0.02 kg) x (100 m/s ==> that way)

Momentum of the ball = 2 kg-m/s ==> that way.

-- In order for both of them to add up to zero, the momentum of the cannon must be (2 kg-m/s this way <==) .

Momentum of cannon = (5 kg) x (V m/s this way <==)

2 kg-m/s this way <== = (5 kg) x (V m/s this way <==)

Divide each side by (5 kg):

V m/s  =  (2/5) m/s this way <==

Speed of recoil of the cannon = -- 0.4 m/s

Answer:

the heat always transfers from high temperature to low temperature body without aid of any external energy to this law the heat transfers from cup of coffee to the person body until both bodies reaches to the equilibrium state    

Explanation:

Asia I think that's right

Answer:  

to get around the Earth's atmosphere so that we can get a clearer view of the planets, stars, and galaxies that we are studying.

Explanation:

The correct and is A or jet streams, trade winds, and Coriolis effect

Answer:

2. Jet streams, Polar Easterlies, and Trade winds

Explanation:

It isn't one because the Coriolis effect is an effect or something that causes something else. (it causes things to curve like other winds and stuff) Not three because Sea breezes are winds that travel short distances, occur at night, at the beach, Not for because it also has Coriolis effect and it also has breezes for some reason. So, your answer will be 2.

Hope this helped!

Stay safe!

Answer:

Your answers are Continental crust and Mountain range.

Explanation:

Continental crust is the first blank, and Mountain range the second.

I hope I helped, and I always appreciate Brainliest!!! :)

Answer:

-->Phytoplankton are AUTOTROPHS

--> Both the Salmon and the grizzly bears are CONSUMERS.

--> Grizzly bears are SECONDARY CONSUMERS.

Explanation:

In an ecosystem, which is the basic functioning unit of nature, the biotic components is made up of all the living organisms in it. These organisms are divided into two main groups which includes:

--> The AUTOTROPHS: These are organisms that are able to use sunlight or chemical energy to manufacture their own food from simple inorganic substances. Since Autotrophs are the only organisms that can produce food in an ecosystem, they are also known as PRIMARY PRODUCERS. Example of autotrophs includes Phytoplankton( all green plants).

-->HETEROTROPHS: These organisms cannot manufacture their own food rather they feed on ready-made food which comes from the tissues of organisms in their environment. In an ecosystem, Heterotrophs are known as the CONSUMERS. Example of Heterotrophs includes all animals (salmon and the grizzly bears).

These biotic components of the ecosystem forms a feeding pathway through which energy and nutrients are transferred step by step among organisms. This is called a FOOD CHAIN. This feeding pathway follows a certain pattern:

--> it begins with a primary producer (Phytoplankton)

--> the primary producer is eaten by a primary consumer (salmon)

--> the primary consumer is eaten by a secondary consumer (grizzly bears)

That is the reason both the Salmon and the grizzly bears are CONSUMERS but while salmon is a primary consumer, grizzly bears are SECONDARY consumers.

Answer:

correct answer below

Explanation:

Answer:

This is true fact.

Well done bud keep up the hard work at school

true As a non-zero net force

Answer:

applied force

Explanation:

An applied force is a force that is applied to an object by a person or another object. If a person is pushing a desk across the room, then there is an applied force

Answer:

it is an ionic compound

Explanation:

Answer: A

Explanation:

Just speed I think.

Speed is scalar, while velocity is a vector so you would need a direction. For acceleration you would need to know the specific speed at different points in time.

A cheetah can run 140 miles in 2 hours.

The information we can calculate about the cheetah given this information is the "speed" (A).

Answer:

Book of mass 2 kg is lifted from floor to the table. The height between floor and the table is 1.5 m. Calculate the work done by gravitational force.

i hope this helps.......

Answer:

see below

Explanation:

first of all, you find the speed of sound in air

which is

speed = frequency x wavelength

so

speed = 200 x 1.5

speed = 300 m/s

speed remains the same in the same medium

so you can use speed and frequency to find wavelength

speed = frequency x wavelength

300 = 600 x wavelength

wavelength = 0.5 m

hope this helps, please mark it brainliest

Answer:

in this ionic compound, oxygen has 2 excess electrons and magnesium has two electrons missing.

Explanation:

When oxygen is mixed in a chemical reaction, it acquires two electrons from magnesium, to become an ion with 2 negative .

Mg + O → MgO

Therefore, in this ionic compound, oxygen has 2 excess electrons and magnesium has two electrons missing

Answer:

No

Explanation:

Acceleration is the rate of change in velocity. Here the car maintains a constant speed, no change in velocity

Answer:

opposite

Explanation:

Answer:

because all objects fall at a rate of 9.8m/s²

Answer:

The one with larger mass because of the momentum he has.

Explanation:

Momentum= mass x Velocity

As mass increase momentum increase.

Answer:

I can only explain using the formula

Explanation:

v=f

[tex]v = f \times lamda[/tex]

v is velocity

f is frequency

lamda is wavelength ( I don't have the symbol)

therefore velocity is the product of frequency and wavelength

And since period is the inverse of frequency;

Period (T)=1/f

so we can have v=lamda/T

That's what I think

Answer:

El valor en notación científica es 3.98*10⁻⁶.

Explanation:

La notación científica es una manera rápida de representar un número utilizando potencias de base diez. Esta notación se utiliza para poder expresar muy fácilmente números muy grandes o muy pequeños.

Los números se escriben como un producto:

a*10ⁿ

donde:  

Para escribir el número 0.000003979 en notación científica, se realizan los siguientes pasos:

Entonces, en este caso:

Entonces, el valor en notación científica es 3.98*10⁻⁶.

The atomic mass is the protons + the neutrons.

So your answer would be 5 + 6 = 11.

Please mark Brainliest! :)

Answer:

[tex]v = 22.54m/s[/tex] --- Velocity

[tex]h = 25.921m[/tex] --- Distance

Explanation:

Given

[tex]u = 0m/s[/tex] --- Initial velocity

Solving (a): Velocity after 2.3s

To do this, we use the first equation of motion

[tex]v = u + at[/tex]

Where

[tex]t = 2.3s[/tex]

[tex]a = g = 9.8m/s^2[/tex]

So, the equation becomes:

[tex]v = 0 + 9.8 * 2.3[/tex]

[tex]v = 0 + 22.54[/tex]

[tex]v = 22.54m/s[/tex]

Solving (b): Distance covered in 2.3s

We make use of:

[tex]h = ut + \frac{1}{2}gt^2[/tex]

This gives:

[tex]h = 0 * 2.3 + \frac{1}{2}*9.8 * 2.3^2[/tex]

[tex]h = \frac{1}{2}*9.8 * 5.29[/tex]

[tex]h = 25.921m[/tex]

Answer: hmm

Explanation:

hmmm

Answer: 4. Windy, whooping weather

Explanation: b/c it is!

Answer:

Windy, whooping weather

Explanation:

thats the answer

Answer:

The Convex Mirror is used.

Explanation:

Answer: 25 watt

Explanation:

Given,

Work= 375 j

Time= 15

So, power = W÷t

= 375 ÷ 15

= 25 watt

Explanation:

The resources that we value—time, money, labor, tools, land, and raw materials—exist in limited supply. There are simply never enough resources to meet all our needs and desires.

Explanation:

Time, money, labor, land , and raw materials

Answer:

A scientific model is a physical and/or mathematical and/or conceptual representation of a system of ideas, events or processes. Scientists seek to identify and understand patterns in our world by drawing on their scientific knowledge to offer explanations that enable the patterns to be predicted.

Answer:

D

Explanation: