Suppose a candle is burned in a closed system where matter cannot enter or leave. Given this situation,
what is equal to the mass of the original candle?

Explanation:

The force exerted by our foot on the sand is less because time taken is large so it is difficult to run fast on sand.

hope it will help you

Answer:

A force gauge (also called a force meter) is a measuring instrument used to measure forces. Applications exist in research and development, laboratory, quality, production and field environment. There are two kinds of force gauges today: mechanical and digital force gauges.

Answer:

1. Name 3 items in nature that contain high concentrations of proteins.

Answer: Animal products like milk, eggs, and meat have really concentrated protein. (nuts and plants you can eat also are really concentrated)

2. What is similar about the primary structure of each protein?

Answer: The primary structures have a balanced level of amino acids.

3. For the proteins you researched, how does the structure help the protein perform its function?

Answer: The primary structure is reflected on its folded structure and that folded structure determines the proteins function.

Explanation:

its kinda hard to answer the questions without you telling us which 2 proteins you wanted to research but i think the easiest options would be eggs and meat.

Answer:

The original source of all sand is rocks.

Hope I helped sorry if I didnt

Answer:

answer is rocks

Explanation:

It’s rocks because all sand it Little Rock’s that have been smashed into smaller pieces over the years and decade, and that’s how rivers go sand to because some of the broke down rocks would fall into the river and eventually be carried in the ocean and washed in shore. And that’s how we got beaches

Answer: C

Explanation: Air

Hope this helps! Brainlist Plz?

The following substances can be separated into several elements is the air because consisting of a mixture of several gases, such as nitrogen, oxygen, carbon dioxide and noble gases.

Atmospheric air is made up of a mixture of several gases, such as nitrogen, oxygen, carbon dioxide and noble gases. Oxygen and nitrogen are the most abundant gases, with the other gases being found in smaller amounts.

So the only element that we can separate into is air, because when performing the separation we find oxygen, nitrogen, carbon dioxide and noble gases.

See more about air at brainly.com/question/19368011

#SPJ2

Explanation:

u = 0.0m/s

t = 34s

a = 9.81m/s²

Using Kinematics,

s = ut + 0.5at²

= 0 + 0.5(9.81)(34)²

= 5,670.18m.

Answer:

Explanation:

see image

Explanation:

We know that for the plant;

         Tall is represented by T

         Short is represented t

Phenotypically, TT and Tt have the same expression.

The phenotype of an organism denotes the observable feature it possesses. Although determined by the genetic composition but the environment plays a very important role in its expression.

The genotype is the genetic make up of an organism. TT and Tt denotes the genes that occupy positions in the nucleus of the cell.

Both TT and Tt shows that the organism is tall. t is short and recessive.

Answer:

3200 Kg

Explanation:

Just apply the formula:

40.000 = 1/2 . m . 25

80.000 = 25m

m = 80.000/25

m = 3200 Kg

Answer:

v = 0.76 [m/s]

Explanation:

The linear momentum generated by the shot must be calculated. This can be calculated using the following expression.

[tex]P=m*v\\[/tex]

where:

P = linear momentum [kg*m/s]

m = mass [kg]

v = velocity [m/s]

[tex]P=0.004*380\\P=1.52[kg*m/s][/tex]

Now we can calculate the recoil velocity, because the momentum is equal for the rifle.

[tex]P=m*v\\v = P/m\\v = 1.52/2\\v = 0.76[m/s][/tex]

Answer:

a = 0.1 [m/s²]

Explanation:

To solve this problem we must use the following equation of kinematics.

[tex]v_{f}=v_{o}+a*t[/tex]

Vf = final velocity = 0.8 [m/s]

Vo = initial velocity = 0.3 [m/s]

a = acceleration [m/s²]

t =  time = 5 [s]

[tex]0.8=0.3+a*t\\0.5 = 5*a\\a = 0.1 [m/s^{2}][/tex]

Answer:

In mathematics, a random walk is a mathematical object, known as a stochastic or random process, that describes a path that consists of a succession of random steps on some mathematical space such as the integers.

Explanation:

Answer:

8

Explanation:

1.0 × 3.1 × 2.5 = 7.75 cm^3

nearest tenth 8cm^3

Answer:

In collisions between two isolated objects Newton's third law implies that momentum is always conserved. In collisions between two isolated objects momentum is always conserved. Kinetic energy is only conserved in elastic collisions.

Explanation:

Answer:

This question is incomplete, the question is asking which enzyme unwinds the DNA molecule during DNA replication.

The answer is DNA HELICASE

Explanation:

DNA replication is the process whereby DNA molecule (genetic material) is duplicated in the genome i.e. DNA makes an identical copy of itself. The process of DNA replication is carried out in a step by step manner with various enzymes functioning specifically throughout the process.

The first step is to unwind the double-stranded DNA molecule into two single strands. The two single strands serves a templates to synthesize another pairing strand to make two DNA molecules in total. The unwinding of the DNA strands is carried out by an enzyme called DNA helicase.

Answer:

A new copy of DNA is built from individual  

✔ nucleotides

.

The enzyme  

✔ helicase

unwinds the DNA molecule, allowing replication to begin.

Explanation:

Answer:

x = 16 [m]

Explanation:

This problem can be solved using the following equation of kinematics.

[tex]v_{f}=v_{o}+a*t[/tex]

where:

Vf = final velocity [m/s]

Vo = initial velocity = 5 [m/s]

a = acceleration = 3 [m/s²]

t = time = 2 [s]

[tex]v_{f}=5+3*(2)\\v_{f}=11[m/s][/tex]

Now we can find the displacement using the following equation of kinematics.

[tex]v_{f}^{2} =v_{o}^{2} +2*a*x\\11^{2}=5^{2} +2*3*x\\96=6*x\\x=16[m][/tex]

Answer:

Facilitated diffusion and active transport both utilize proteins to transport substances across membranes. Differences between active transport and facilitated diffusion 1. Active transport requires an input of energy, usually ATP, while facilitated transport does not.

Explanation:

Voltage across each bulb = 8V / 4 = 2V (Potential difference)

Answer:

2 (8 ÷ 4) volts.

According to the passage, in a series circuit, “the voltage is shared across all the bulbs.” If the bulbs are of equal resistance, the voltage across each will be ¼ of the battery’s 8 volts or 2 volts.

i got it right on flocabulary.com

Explanation:

Answer:

T1+T2/2M

Explanation:

The expression for the centripetal acceleration for the vertical circle is [tex]a_c = \frac{T_1 + T_2 }{2m}[/tex].

In a vertical circular motion, the tension of the swing at the top of the circle is given as;

[tex]T_1 =m a_c_{top} - mg\\\\T_1 = ma_c - mg\\\\mg = ma_c - T_1[/tex]

The tension of the swing at the bottom of the circle is given as;

[tex]T_2 = ma_{bottom} + mg\\\\T_2 = ma_c + mg[/tex]

solve the two equations together;

[tex]T_2 =ma_c + ( ma_c -T_1)\\\\T_2 = ma_c + ma_c - T_1\\\\T_2 + T_1 = 2ma_c\\\\a_c = \frac{T_1 + T_2}{2m}[/tex]

Thus, the expression for the centripetal acceleration for the vertical circle is [tex]a_c = \frac{T_1 + T_2 }{2m}[/tex].

Learn more here:https://brainly.com/question/14881568

Answer:

huh

Explanation:

im so confused

Answer:

eevee

Explanation:

Answer: static electricity

Explanation: The movement of charged particles through a wire or other medium is called current or electricity. There is also static electricity, which results from an imbalance or separation of the positive and negative charges on an object. Static electricity is a form of electrical potential energy

Options are;

(a) the red beam

(b) the violet beam

(c) it is the same for both beams

(d) cannot answer this without knowing the light intensity

Answer:

A: Red Beam

Explanation:

The energy of a photon is given by the formula;

E = hc/λ

Where;

h is Planck's constant

c is speed of light

λ is wavelength

From online sources, wavelength of red light is greater than that of violet.

Thus, it means that the value of E for red light will be lesser than that of violet since the denominator under red light will be larger. Therefore, the beam of red light will have the greatest number of photons hitting the surface per second.

The Planck's equation and the definition of power allow you to find the result for which beam has the largest number of photons is:

The energy of a photon is given by the Planck's equation.

          E = h f

Where h is the Planck constant and f the frequency.

The speed of light is related to wavelength and frequency.

           c = λ f

           f = [tex]\frac{c}{\lambda }[/tex]

Let's  substitute

          E = [tex]\frac{hc}{\lambda}[/tex]  

Power is defined as energy per unit of time.

         P = W / t

         P t = W

The wavelength of red light, in the order of 700 nm, is greater than the wavelength of violet light, which is on the order of 400 nm, therefore the energy of a photon of red light is less than the energy of a photon of violet light.

            [tex]E_{red} < E_{violet}[/tex]

The total energy deposited is the number of photons times the energy of each photons.  

         W = [tex]#_{photons} \ E_o[/tex]  

They indicate that the power delivered by the two rays is the same.

        [tex]P_{red} = P_{violet}[/tex]

        #_ {red photons} [tex]E_{o \ red}[/tex]d = #_{photons violet}  [tex]E_{o \ violet}[/tex]  

        [tex]number_{red \ photons} = \frac{E_{violet}}{E_{red}} \ number _{violet \ photons}[/tex]

The amount of energy of the violet photons is greater than the amount of energy of the red photons.

         [tex]\frac{E_{violet}}{E_{red}} > 1[/tex]  

Consequently, to leave the same power, there must be more red photons than violet wavelength photons.

In conclusion, using Planck's equation and the definition of power, we can find the result for which beam has the greatest number of photons is:

Learn more here:  brainly.com/question/5528489

Answer: Carbon Dioxide.

Explanation: Oxygen and Carbon are both elements, so they can’t be compounds. Air is a mixture of gasses, not a compound.

Answer: The volume of the gas at the increased pressure will decrease to 3.72L.

Explanation:

Boyle's law states that the volume occupied by a fixed mass of gas is inversely proportional to the pressure, provided temperature is kept constant. That is,

PV=K

P1V1 =P2V2

P1= 201 kpa

V1 = 6.2L

P2= 335kpa

V2= ?

Making V2 the subject of formula,

V2= P1V1/P2

V2= 201× 6.2/335

V2= 1246.2/336

V2= 3.72L

Thus, the volume of the gas decreases as the pressure increases. Hope this helps, thanks

Answer:

The volume will be 3.72 L.

Explanation:

We can find the new volume by using the Ideal Gas Law:

[tex] PV = nRT [/tex]

Where:

P: is the pressure

V: is the volume

n: is the number of moles

R: is the gas constant

T: is the temperature

Initially, we have:

[tex]P_{1}V_{1} = nRT[/tex]   (1)

with V₁ = 6.2 L, P₁ = 201 kPa and nRT = constant

When the pressure is increased we have:

[tex] P_{2}V_{2} = nRT [/tex]   (2)

with V₂ =?, P₂ = 335 kPa and nRT = constant

By equating (1) and (2) we have:

[tex] P_{1}V_{1} = P_{2}V_{2} [/tex]

[tex] V_{2} = \frac{P_{1}V_{1}}{P_{2}} = \frac{201 kPa*6.2 L}{335 kPa} = 3.72 L [/tex]

Therefore, the pressure is increased to 335 kPa the volume will be 3.72 L.

I hope it helps you!

Newton 2ns law state that external forces that exert on an object is proportional to the mass and the acceleration of an object

Formula : ΣF = ma

ask me if you're confused with my answer

Answer:

[tex]\huge\boxed{\sf Time = 10 \ seconds}[/tex]

Explanation:

Given:

Initial Velocity = [tex]\sf V_{i}[/tex] = 8.0 m/s

Final Speed = [tex]\sf V_{f}[/tex] = 28.0 m/s

Acceleration = a = ?

Required:

Time = t = ?

Formula:

[tex]\sf a = \frac{V_{f} - V_{i}}{t}[/tex]

Solution:

[tex]\sf 2 = \frac{28-8}{t} \\\\2 = \frac{20}{t} \\\\t = \frac{20}{2} \\\\t = 10 \ seconds\\\\\rule[225]{225}{2}[/tex]

Hope this helped!

Answer:

h = 14.98 [m]

Explanation:

We can calculate this height using the definition of potential energy, which tells us that this energy is equal to the product of mass by gravitational acceleration by height. In this way we can find the height, by means of the following equation:

[tex]E_{pot}=m*g*h[/tex]

where:

Epot = potential energy = 6615 [J]

m = mass = 45 [kg]

g = gravity acceleration = 9.81 [m/s²]

h = elevation [m]

[tex]6615 = 45*9.81*h\\h = 14.98 [m][/tex]