Look closely at the diagram that shows a roller coaster car at various points along the ride. Use it to answers Questions 3–4.

Answer:

16 m

Explanation:

Answer:

c

Explanation:

what poping

Answer:

solution

given,

mass(m)=5040kg

kinetic energy(ke)=493,900

velocity(v)=?

[tex]ke = \frac{1}{2} mv {}^{2} \\ 493900 = \frac{1}{2} \times 5040 \times v {}^{2} \\ 493900 = \frac{5040v {}^{2} }{2} \\ 493900 = 2520v {}^{2} \\ v {}^{2} = 196 \\ v = \sqrt{196} \\ v = 14ms {}^{ - 1} [/tex]

When an object moves from one point to other point, it possess the energy which is called the Kinetic energy of the object.

The velocity of he bus is 14 m/s.

Given that, a bus travelling through town, with a mass of 5040 kg and kinetic energy of  493,900 J.

So the kinetic energy expressed by the formula given below.

[tex]k=\dfrac {1} {2}mv^2[/tex]

Where, [tex]k[/tex] is the kinetic energy in joules, [tex]m[/tex] is the mass of object in kilograms and [tex]v[/tex] is the velocity of the object in meter per second.

So the velocity of the bus can be calculated by substituting the values in above formula.

[tex]493900=\dfrac{1}{2}\times5040\times v^2[/tex]

[tex]v^2=196\\\\v=\sqrt{196}\\v=14\;\rm m/s[/tex]

The velocity of he bus is 14 m/s.

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Answer:

A By returning nutrients to the soil

Explanation:

Here are the options

A By returning nutrients to the soil

B By releasing oxygen into the air

C By making space for new animals

D By decreasing the population of herbivores

The process by which mushrooms act on dead trees provide nutrients that are necessary for the process of photosynthesis.

Types of decomposers

Functions of a decomposer

Answer: False

Explanation:

Answer:

it is c

Explanation:

Hello , it' s 5 but i am not sure Explanation:

Answer:

Thx!

Explanation:

Answer:

 the mass deficit is directly proportional to bond reeling

Explanation:

The effect of the mass deficit in the nuclei is

          δ = m_nucleons - m_nucleo

the delta quantity is the binding energy of the atomic nucleus,

This mass is related to energy by the Einstein relation

         ΔE = c² Δm

therefore the mass deficit is directly proportional to bond reeling

Answer:

C. Some of the mass of the four hydrogen nuclei was converted into

energy

Explanation:

Ap3x

Answer:

0.27 kg-m/s

Explanation:

i believe this is the correct answer

Answer:

the order of liquids from bottom to top is    Mercury - Water - Oil

Explanation:

In general, when several substances are mixed we can have two cases, that the substances dissolve some enter and that the substances have not been miscible (insoluble) this is our case, the three substances do not dissolve.

Therefore they must be deposited according to the principle of Archimedes,

           B -W = 0

if the thrust (B) of the liquid is greater than the weight of the upper body, the body floats and if less, the body sinks.

           B = ρ_{liquid1}   g  V_{liquid2}

           W = m_{liquid2} g

substance densities are tabulated

ρ_{oil} = 750 to 950 kg / m3

ρ_ water = 1.00 10³ kg / m³

ρ_ Hg = 13.6 10³ kg / m #

The thrust created by the mercury is

          B_Hg = ρ_Hg g V_ Liquid2

          B_Hg = 13.6 10³  9.8 V

          B _Hg = 133.3 10³ V

The push of the water

          B_water = 1  10³ 9.8 V

          B_water = 9.8 10³ V

The oil density, let us use ρ_oil =  ​​0.75 10³ kg / m³

          B_ oil = 0.750 10³  9.8 V

          B _ oil = 7.35 10³ V

let's find the volumes of the bodies

Mercury

          ρ = m / V

         V_hg = m /ρ_Hg

          V_Hg = 20 10⁻³/ 13.6 10³

          V_Hg = 1.47 10⁻⁶ m³

Water

          V_water = 50 10⁻³ L

we reduce from liter to m³ 1000 l = 1 m³

           V_water = 50 10⁻⁶ m³

Oil

          V_oil = 25 10⁻³ l

           V_oil = 25 10⁻⁶ m³

Let's look for the push for every two substances

The mercury  in the bottom and upper  sustabce the water and oil  

           B_hg = 133.3 10³ (V_water + V_oil)

           B = Hg = 133.3 10³ (50 + 25) 10⁻⁶

           B = 10 N

the weight of substance on mercury is

          W = W_water + W_oil

          W = ρ_water g V_water + ρ_oil ​​g V_oil

          W = g (ρ_water V_water + ρ_oil ​​V_oil)

          W = 9.8 (1 10³ 50 10⁻⁶ + 0.75 10³ 25 10⁻⁶)

          W = 9.8 68.75 10⁻³

          W = 6.7 10⁻¹ N

We can be that the weight of this substance in less than the push created by the mercury therefore they float.

In resume the mercury is the substance that will be at the bottom of the cylinder.

Let's repeat the calculation for water and oil.

Suppose the water is below

            B₂ = ρ_water g V_oil

            B₂ = 1 10³ 9.8 25 10⁻⁶

            B₂ = 245 10⁻³ N

            B₂ = 2.5 10⁻¹ N

The weight of the oil

            W = ρ_oil ​​g V_oil

            W = 0.750 10³ 9.8 25 10⁻⁶

             W = 183.75 10⁻³

            W = 1.8 10⁻¹ N

we see that the thrust of the water is greater than the weight of the oil therefore the oil floats in the water

In summary the order of liquids from bottom to top is

Mercury - Water - Oil

In physics, a force is any interaction that, when unopposed, will change the motion of an object.

[tex] \\ [/tex]

heyy have a nice day yixxixigx

Answer:

A.1

Explanation:

on the vector plot you should count up and if you count up you´ll get one

The length of the y-component of the vector plotted in the given question would be 1. Thus, the correct option is A.

A vector field can be defined as an assignment of a vector to each point in the subset of space. For instance, a vector field in the plane can be easily visualized as a collection of arrows with a given magnitude and direction of a particle, each line or arrow attached to a point in the plane of space.

Vector plots are used to create vector lines between any two points or from one point in space to the specified angle direction and with the selected magnitude and direction of the quantity or quality.

In the given graph, the Y-component is the vertical line or vertical component. The value of the y-component of the vector plotted is 1.

Therefore, the correct option is A.

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Answer:

D

Explanation:

im pretty sure

Answer:

he can wear gogles lab coat and gloves

Explanation:

Answer:

Explanation:Wave speed = 100 ×0.50 meter per second . Wave speed = 50 meter per second .

The type of electromagnetic wave that has the lowest frequency is infrared light (option A).

Electromagnetic spectrum is the entire range of wavelengths of all known electromagnetic radiations.

The electromagnetic spectrum extends from the following waves:

The frequency of each electromagnetic wave is as follows:

Therefore, infrared light has the lowest frequency of the options.

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Answer:   Infrared light

Explanation:   I took the test

Answer:

magnitude

Explanation:

The Richter scale compares the magnitude or energy of earthquakes

Answer:

Ball B

Explanation:

I say this because its the heavier one?

The momentum of a body increases with increase in mass. Hence, among the two balls, the ball with the greater mass that is ball B has the greater momentum.

Momentum is the ability of a moving object to bring the force effective to make maximum displacement. It is the product of mass and velocity.

P = mv

Thus, as the velocity and mass increases, the momentum increases. The force applied on a body with greater mass makes greater acceleration and greater momentum.

Therefore, at constant velocity, the object with the greater mass will have the greater momentum. Then, the ball  with 75 kg mass is having  the greater momentum.

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Answer:

The SI unit for electric current is Ampere (A)

Answer:

the distance that the object is raised above its initial position is 5.625 m.​

Explanation:

Given;

applied effort, E = 15 N

load lifted by the ideal pulley system, L = 16 N

distance moved by the effort, d₁ = 6 m

let the distance moved by the object = d₂

For an ideal machine, the mechanical advantage is equal to the velocity ratio of the machine.

M.A = V.R

[tex]M.A = \frac{Load}{Effort} = \frac{L}{E} \\\\V.R = \frac{disatnce \ moved \ by \ the \ effort}{disatnce \ moved \ by \ the \ load} = \frac{d_1}{d_2} \\\\For \ ideal \ machine; \ M.A = V.R\\\\\frac{L}{E} = \frac{d_1}{d_2} \\\\d_2 = \frac{E \times d_1}{L} \\\\d_2 = \frac{15 \times 6}{16} \\\\d_2 = 5.625 \ m[/tex]

Therefore, the distance that the object is raised above its initial position is 5.625 m.​

Answer:

Explanation:

The answer is Temperature difference

Answer:

C

Explanation:

is the answer ,..........................

Answer:

I believe it's D. a glacier flattening the land below it​.

Answer: 210 cm

Explanation:

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