Which term describes the quantity of energy transferred from a warmer object to a cooler object?
A. Convection
B. Heat
C. Kinetics
D. Voltage

Answer:

it's made of land, rocks, water and many more

Explanation:

if you think about it, mountains are just giant rocks. and the ocean is water and land is... well land

Answer:

Well all Ik is that when the earth was formed it was a big hot rock then the water came in and settled it and the animals kinda became land creatures the yea

Explanation:

Answer:

importance of measurement is it gives proper required amount of anything if it will not exist then alot of work be disrupted .In many work measurement is very necessary like in scientific works

Answer:

The height of the hill is "31.85 m".

Explanation:

The given value is:

Velocity,

v = 25 m/s

As we know,

⇒ [tex]Kinetic \ energy =Potential \ energy[/tex]

i.e,

⇒ [tex]mgh=\frac{1}{2} mv^2[/tex]

⇒    [tex]gh=\frac{1}{2} v^2[/tex]

⇒      [tex]h=\frac{v^2}{2g}[/tex]

On substituting the given value, we get

⇒      [tex]h=\frac{(25)^2}{2\times 9.81}[/tex]

⇒         [tex]=\frac{625}{19.62}[/tex]

⇒         [tex]=31.85 \ m[/tex]

Given;

We know the relation,

→ [tex]Kinetic \ energy (K.E) = Potential \ energy (P.E)[/tex]

or,

→ [tex]mgh = \frac{1}{2}mv^2[/tex]

or,

→    [tex]gh = \frac{1}{2}v^2[/tex]

         [tex]h = \frac{v^2}{2g}[/tex]

By putting the values, we get

            [tex]= \frac{(25)^2}{2\times 9.81}[/tex]

            [tex]= \frac{625}{19.62}[/tex]

            [tex]= 31.85 \ m[/tex]

Thus the response above is right.

Learn more about velocity here:

https://brainly.com/question/15447166

Answer:

a) 4

b) 5

c) 2s

d) 10 m/s

e) 5-10m/s^2

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Answer:

a

Explanation:

wavelength and frequency are inversely related

Answer:

they relate because one may be metal but they are both metal and they can be strong together if they are connected

Explanation:

they just are

Answer:

A.) Maritime Tropical (mT)

Explanation:

Continental tropical is the air mass that forms over warm land.

Maritime Polar is the air mass that forms over cold water.

Continental polar is the air mass that forms over cold land.

So therefore A or Maritime Tropical is the correct answer

because earth has lava underneath us all and it makes earthquakes and etc things like that

Answer:

I. Speed = 20m/s

II. Velocity = 20m/s due North.

Explanation:

Given the following data;

Distance = 40m

Time = 2secs

To find the speed;

Mathematically, speed is given by the formula;

[tex]Speed = \frac{distance}{time}[/tex]

Substituting into the equation, we have;

[tex]Speed = \frac{40}{2}[/tex]

Speed = 20m/s.

In physics, we use the same formula for calculating speed and velocity. The only difference is that speed is a scalar quantity and as such has magnitude but no direction while velocity is a vector quantity and as such it has both magnitude and direction.

[tex]Velocity = \frac{distance}{time}[/tex]

Therefore, the velocity is 20m/s due North.

Answer:

6 seconds

Explanation:

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Answer:

Somuchcringe answered correctly you mark him brainliest

Explanation:

Explanation:

Starting position at x  = 16m

Ending position at x  = -25m

Time of flight  = 4s

Unknown:

Distance flown  = ?

Displacement  = ?

Speed  = ?

Velocity  = ?

Solution:

To find the distance flown, we should understand that the body is moving on the x - plane;  

  So distance  = 16 + 25  = 41m

Displacement is 41m to the left or -x axis

Speed is the distance divided by the time taken;

      Speed  = [tex]\frac{distance}{time}[/tex]   = [tex]\frac{41}{4}[/tex]   = 10.25m/s

Velocity is 10.25m/s along -x axis

Answer:

15s

Explanation:

Given parameters:

Distance traveled  = 375m

Speed = 25m/s

Unknown:

Time taken = ?

Solution:

To solve this problem, we make time the subject of the speed equation.

    Speed  = [tex]\frac{distance}{time}[/tex]  

  Time  = [tex]\frac{distance}{speed}[/tex]  

 Now insert the parameters and solve;

  Time  = [tex]\frac{375}{25}[/tex]   = 15s

Answer:

42.5mph

Explanation:

The computation of the average speed is shown below:

As we know that

Speed = Distance ÷ Time

ANd, distance = Speed × time

So, the distance would be

= (50 × 5 hours) + (30 × 3)

= 250 + 90

= 340 miles

And, the total time taken is 8 hours

So, the average speed is

= 340 miles ÷ 8 hours

= 42.5mph

Answer:

B

Explanation:

Answer:

53.8

Explanation:

Knowns:

Distance - 1,400

Speed - 52

Unknowns:

Velocity - ?

V = 2([tex]\frac{Distance}{Time}[/tex])

V = 2([tex]\frac{1,400}{52}[/tex])

V = 2(26.9)

V = 53.8

Answer:

A. The first option: An absorber that is dark in color and rough.

Explanation:

a material absorbs - or transfers the most thermal energy when it is dark in color and rough in texture.

The material that would result in the greatest amount of energy transfer will be an absorber that is dark in color and rough.

A piece of a substance called an absorber is used to absorb a few of the energy of an incoming particle.

Depending on the application, absorbers can be manufactured of a range of materials, including lead, tungsten, and liquid hydrogen.

The majority of absorbers are found in particle detectors, but they are also utilized in particle accelerators to protect their components from radiation damage.

The material that would result in the greatest amount of energy transfer will be an absorber that is dark in color and rough.

Hence option A is correct.

To learn more about the absorber refer to the link;

https://brainly.com/question/23461193

Answer:

1800J

Explanation:

Given parameters:

Weight of the book  = 20N

Total distance covered  = 45m + 15m + 30m  = 90m

Unknown:

Total work performed on the books  = ?

Solution:

To solve this problem we must understand that work done is the force applied to move a body through a certain distance.

So;

    Work done  = Force x distance

  Work done  = 20 x 90  = 1800J

Answer:

v₃ = 4.33 [m/s]

Explanation:

This problem can be solved by the conservation of linear momentum, where momentum is preserved before and after the crash or collision.

For this case, the following equation will be constructed. With values before the collision to the left of the equal sign and after the collision to the right of the equal sign.

[tex](m_{1}*v_{1})+(m_{2}*v_{2})=(m_{1}+m_{2})*v_{3}[/tex]

where:

m₁ = mass of the big football player = 130 [kg]

m₂ = mass of the second football player = 110 [kg]

v₁ = velocity of the big football player before the collision = 8 [m/s]

v₂ = velocity of the second football player before the collision = 0 (who is standing still).

v₃ = velocity of the two players after the collision [m/s]

Now replacing:

[tex](130*8)+(110*0)=(130+110)*v_{3}\\1040 = 240*v_{3}\\v_{3}=4.33[m/s][/tex]

Answer: 26.3 m/s²

Explanation:

F = mass x acceleration

674 N = (25.6 kg)(a)

674/25.6 = 26.3

a = 26.3 m/s²

Answer:

The horizontal speed with which the slingshot hits the balloon is approximately 57.358 m/s

Explanation:

The given parameters of the slingshot motion are;

The initial velocity of the slingshot, v = 100 m/s

The angle (to the horizontal) at which the slingshot is fired makes, θ = 55°

The path of the slingshot which hits the stationary balloon at the top of its flight = Parabolic trajectory

The horizontal component of the velocity = vₓ = v·cos(θ) = Constant

vₓ = 100 × cos(55°) ≈ 57.358

The horizontal speed with which the slingshot hits the balloon = vₓ ≈ 57.358 m/s.

Explanation:

Mostly in metamorphic or lava materials is uranium-238 contained. Then no fossil could be estimated utilizing U 238 specifically. They should never be used combined due to the huge variations in the half-life of Carbon 14 with Uranium-238. It is only possible to be using carbon 14 to classify fossil from a very current generation.

Answer:

Answer is the formation of multiple images of the same object .

Explanation:

I hope it's helpful!

Answer:

Se necesita la información de las siguientes variables:

(i) Fuerza normal entre los pies y la superficie.

(ii) Masa del atleta de halterofilia.

(iii) Masa de la barra de pesas.

(iv) Aceleración gravitacional.

(v) Fuerza normal entre la barra de pesas y la superficie.

(vi) Aceleración neta del centro de gravedad del sistema.

Explanation:

Sea el conjunto del atleta de halterofilia y la barra de pesas el sistema físico a estudiar. El fenómeno de levantamiento puede modelarse como traslación pura. Por las leyes de Newton tenemos que se necesita las siguientes variables para determinar la magnitud de la fuerza para levantarla (fuerza normal entre la mano y la barra de pesas) se requiere las siguientes variables:

(i) Fuerza normal entre los pies y la superficie.

(ii) Masa del atleta de halterofilia.

(iii) Masa de la barra de pesas.

(iv) Aceleración gravitacional.

(v) Fuerza normal entre la barra de pesas y la superficie.

(vi) Aceleración neta del centro de gravedad del sistema.

Answer:

A or D i put a

Explanation:

Answer:  Its Either Mario or Tonya measured the mass of the rock incorrectly on the pan balance.

Explanation: ...

Explanation:

A spring has a spring constant, (k), of 3 N/m. It is stretched until it is extended by 50 cm. Calculate the elastic potential energy stored by the spring, assuming it is not stretched beyond the limit of proportionality.

First convert centimetres to metres:

50 cm = 50 ÷ 100 = 0.5 m

Then calculate using the values in the question:

Ee=12 k e2

Ee=12×3×0.52

Ee=1.5×0.25

Ee=0.375 J

Answer:

See the answer below

Explanation:

The weight of a body is defined as the product of mass by the acceleration gravitation of space or place.

1)

[tex]W=m*g[/tex]

where:

m = mass [kg]

g = gravity acceleration = 9.8 [m/s²]

Therefore:

[tex]m=W/g\\m=62/9.8\\m=6.32[kg][/tex]

2)

The mass remains the same regardless of where the object or body is located. That is, the mass will be equal on Mars and on Earth.

3)

We used the same equation to determine the weight, using the Mars gravity constant.

[tex]W=6.32*3.7\\W=23.4[N][/tex]

Answer:

The net force is 50 Newton

Explanation:

Mechanical Force

According to Newton's second law, the net force exerted by an external agent on an object of mass m is:

F=m.a

Where a is the acceleration produced on the object.  

We are given the mass of the object m=5 kg and its acceleration [tex]a=10\ m/s^2[/tex].

The net force is:

F = 5 * 10

F = 50 N

The net force is 50 Newton