(FOR SCIENCE)fill in the blank with the words ok the top!!!!!

Answer:

The correct answer is - 200000 J

Explanation:

We use the formula of kinetic energy:

The formula to calculate kinetic energy is,

Here,

Ec =1/2 x  m x v^2

The mass of the roller coaster is,  m  =  1000  k g

The speed of the roller coaster is, v = 20.0 m/s

 Therefore,

Ec=1/2 x 1000kg x (20m/s)^2 = 200.000Joule

200,000J

Explanation:

20 joule is your answer

Answer:

here

mass m =100kg

distance d=50m

acceleration due to gravity a =10m/s²

work =force×displacement

= ma/d=100×10/50=20joule

Answer: wind pushes directly against the blades of the turbine, which converts the linear motion of the wind into the rotary motion, then it spins the generator's rotor and the harder the wind pushes, the more electrical energy can be generated.

Explanation:

Answer:

a. Planets move on elliptical orbits with the Sun at one focus.

Explanation:

Johannes Kepler was an astronomer who discovered that planets had elliptical orbits in the early 1600s (between 1609 and 1619).

The three (3) laws published by Kepler include;

I. The first law of planetary motion by Kepler states that, all the planets move in elliptical orbits around the Sun at a focus.

II. According to Kepler's second law of planetary motion, the speed of a planet is greatest when it is closest to the Sun.

Thus, the nearer (closer) a planet is to the Sun, the stronger would be the gravitational pull of the sun on the planet and consequently, the faster is the speed of the planet in terms motion.

III. The square of any planetary body's orbital period (P) is directly proportional to the cube of its orbit's semi-major axis.

Hence, one of Kepler's laws of planetary motion states that planets move on elliptical orbits with the Sun at one focus. This is his first law of planetary motion.

Answer:

Planets move on elliptical orbits with the Sun at one focus.

Explanation:

Plato/Edmentum

Answer:

I'm not sure if the directions affect the speed tho

but I think it's 4? cause it's the speed relative to the ground

hope this helps:))

Answer:

speed

Explanation:

Given: an incomplete sentence

To fill: the blank

Solution:

Speed is not a vector quantity but a scalar quantity as it has magnitude but no direction.

Speed = Distance ÷ Time

You can calculate an average speed if you know both the total distance and the total time of the trip.

Average speed = Total distance ÷ Total time

Answer:

Explanation:

Total Mass: 48+25=73 kg

Height: 15m

So work = mgh= 73×9.8× 15=10731 j

And this is positive work.

Answer:

we can't cry in space like we do earth.... because there is no gravity... due to which the tears not fall down..instead they make a liquid clump...near eyes

Answer:

It is because it is a unit of Power(which is a derived quantity)

Answer:

A. fight or flight

Explanation:

but uh tend and befriend could be an option to get out of this situation ;)

a. Fight-or-flight

The fight-or-flight or the fight-flight-or-freeze response is a physiological reaction that takes place in response to a perceived harmful event, attack, or danger to survival. It became first described by Walter Bradford Cannon.

“The fight or flight response, or stress response, is triggered by a release of hormones either prompting us to live and fight or run away and flee,” explains psychologist Carolyn Fisher, Ph.D. “during the response, all bodily systems are operating to maintain us alive in what we've perceived as a dangerous scenario

Learn more about fight-or-flight response here

https://brainly.com/question/5302511

#SPJ2

Answer:

the correct answer is C,      E’= 4E

Explanation:

In this exercise you are asked to calculate the electric field at a given point

         E = [tex]k \frac{q}{r^2}[/tex]

indicates that the field is E for r = 2m

         E = [tex]\frac{ k q}{4}[/tex]                  (1)

the field is requested for a distance r = 1 m

         E ’= k \frac{q}{r'^2}

         E ’= k q / 1

from equation 1

         4E = k q

we substitute

        E’= 4E

so the correct answer is C

Answer:

D. Moving the objects closer together

Explanation:

A.P.E.X.

took the quiz

Answer:

La temperatura final es de aproximadamente 159,94°C

Explanation:

Los parámetros dados son;

La masa de la llave española de acero, m₁ = 200 gramos

La temperatura de la llave, T₁ = 550 ° C

La masa del recipiente de aluminio que contiene agua, m₂ = 250 gramos

La masa del agua en el recipiente de aluminio, m₃ = 220 gramos

La capacidad calorífica específica del hierro, [tex]C_{planchar}[/tex], c₁ = 0.499 ca/(g·°C)

La capacidad calorífica específica del aluminio, [tex]C_{Aluminio}[/tex], c₂ = 0.217 cal/(g·°C)

La capacidad calorífica específica del agua, [tex]C_{Agua}[/tex], c₃= 1 cal/(g·°C)

En equilibrio térmico, tenemos;

m₁·c₁·(T₁ - T) = m₂·c₂·(T -T₂) + m₃·c₃·(T - T₂)

Conectando los valores, da;

200 × 0.499 × (550 - T) = 250 × 0.217 × (T -18) + 220 × 1  × (T - 18)

Simplificando, usando una calculadora gráfica, obtenemos;

[tex]\dfrac{274450-499\cdot T}{5} = \dfrac{1097 \cdot T-19746}{4}[/tex]

De también encontramos 'T' al convertirlo en el tema de la ecuación anterior aún usando una calculadora gráfica;

T = 1196530/7481 °C ≈ 159.94°C

La temperatura final,T ≈ 159.94°C.

The final temperature, when thermal equilibrium is reached is 144°C.

Given the following data:

To determine the final temperature, when thermal equilibrium is reached:

Mathematically, heat capacity or quantity of heat is given by the formula;

[tex]Q = mc\theta[/tex]

Where:

At an equilibrium state, the quantity of heat for the three substances is given by the equation:

[tex]M_kC_k(\theta_2 - \theta_1) = M_aC_a(\theta_2 - \theta_1) + M_wC_w(\theta_2 - \theta_1)\\\\200 \times 0.499 \times (500 - \theta_2) = 250 \times 0.217 \times (\theta_2 - 18) + 220 \times 1 \times (\theta_2 - 18)\\\\99.8(500 - \theta_2) = 54.25(\theta_2 - 18) + 220(\theta_2 - 18)\\\\49900 -99.8\theta_2 = 54.25\theta_2 - 976.5 + 220\theta_2 - 3960\\\\220\theta_2 + 99.8\theta_2 + 54.25\theta_2 = 49900 + 3960\\\\374.05\theta_2 = 53860\\\\\theta_2 = \frac{53860}{374.05}[/tex]

Final temperature, [tex]\theta_2[/tex] = 143.99 ≈ 144°C

Read more: https://brainly.com/question/18877825

Answer:

2 m/s²

Explanation:

F = ma

4 = 2(a)

a = 2

Answer:

what is the question name

Answer:

[tex] {2 \times 10} - 7 = 12 {}^{2} \div x \\ x = 2 \times 10 - 7 \div 12 {}^{2} [/tex]

I'm just in jss2 but I read physics. this is what I think

Answer:

It is always said that mass is same everywhere.

Things I personally use:

-- my eyes

-- my smartphone

-- my garage door opener

-- my TV;  also the TV remote

-- stove

-- microwave oven

-- toaster

-- night light

-- CD player

-- FM radio

-- car headlights

-- traffic stoplights

-- flashlight

-- telescope

-- binoculars

-- film camera

-- digital camera

-- GPS receiver

-- infrared thermometer

Things I don't personally use but are used by other people:

-- police radios

-- firemen's radios

-- EMT's ambulance radios

-- taxi drivers' radios

-- dentist's X-ray machine

Answer:

.6 hours

Explanation:

to find time you divide distance by speed

Answer: C is right

Explanation:

N and O are no-metals and forms covalent bonds.

Usually they need a. Prefix whic tells number of atoms in compound

I think the word would be increases. I don't know what the options are though.

Answer:

Nuclear fission

Explanation:

your so very welcome

Answer:

2.62×10⁻⁶ C

Explanation:

From the question,

Electric Field (E) = kq/r²....................... Equation 1

Where q = charge on the particle, r = distance of the electric field from  the charge,  k = coloumb's constant.

make q the subject of the equation

q = Er²/k.............................. Equation 2

Given: E = 102424 N/C, r = 23 cm = 0.23 m, k = 9×10⁹ Nm²/C².

Substitute these values into equation 2

q = (102424×0.23)/(9×10⁹)

q = 2.62×10⁻⁶ C

Hence the charge on the particle is 2.62×10⁻⁶ C

Answer:

density of the object

volume of the immersed part of the object

Answer:

(3 ) friction hope this is correct

Answer:

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