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Select the correct answer.
Jeff has 10 grams of water and 10 grams of vegetable oil in separate containers. Both liquids have a temperature of 24°C. Jeff heats both liquids
over a flame for five minutes. When he's finished, he discovers that the temperature of the oil increased more than the temperature of the
water. What can Jeff conclude from this experiment?
OA. Vegetable oil is a better conductor of heat than water.
OB. Water is a better conductor of heat than vegetable oil.
OC. Vegetable oil has a higher heat capacity than water.
OD. Vegetable oil has a lower heat capacity than water.
O E. Vegetable oil is a good insulator.
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Explanation:

300,000,000 ÷ 3.00 = 100,000,000 = 10^8

So we can write 300,000,000 = 3.00 x 100,000,000 = 3.00 x 10^8.

The speed of light is 3.00 x 10^8 m/s.

Answer:

You've probably noticed that static electricity is more noticeable during the winter months. This is because the air is very dry. In the summer, the humidity and moisture in the air help electrons move more quickly, which makes it harder to build up a big static charge.

Explanation:

Answer:

Table Salt

Explanation:

Table Salt has free ions in water that conduct electricity so when mixed with water produces the best conductance of electricity

Answer:

Its D , Its is four times larger

Explanation:

I really hope this helps :)

Explanation:

Pick your direction of the perpendicular forces.

Let down be negative and up be positive.

Remember that sum of all the forces is the net force,

So for the vertical forces, we have

[tex]45 + ( - 45) = 0[/tex]

Next, pick your direction of the parallel forces.

Let right be positive and left be negative so we have

[tex]15 + ( - 45) = - 30[/tex]

So our net force is 30 N to the left

Answer:

1c 2d 9e 6n 3j 9i

Explanation:

That is at least half i will let you Finish it

Answer:

1=e

2=g

3=h

4=f

5=j

6=b

Explanation:

.......

Answer:

The frequency of the sound wave is 800Hz

The speed of sound in a is about 340m/s.

Velocity = frequency x wavelength

making wavelength the subject formula

wavelength = Velocity/frequency.

wavelength = 340/800

wavelength = 0.425m.

Two equivalent hybridized orbitals will form from the mixing of one s-orbital and one p-orbital, that is (sp) orbital.

Orbital is the place around nucleus where mostly the electrons are present. There are four types of orbitals are present, s, p, d, and f.

The orbitals that are formed by the mixing of these orbitals are called hybrid orbitals.

Thus, two equivalent hybridized orbitals will form from the mixing of one s-orbital and one p-orbital, that is (sp) orbital.

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Cesium has 37 isotopes. One of Cesium's most stable isotopes undergoes beta decay to form Barium-135. 135 Cs 55 is the correct isotopic notation for the original Cesium isotope before it decayed.

Beta decay is a radioactive decay in which a proton is converted into a neutron or vice versa inside the nucleus of the radioactive sample.

In beta decay, an electron is ejected which increases the atomic number.

135Cs55 ⇒135Ba56  + 0e-1

Cesium      Barium      beta particle

Thus, 135 Cs 55 is the correct isotopic notation for the original Cesium isotope before it decayed.

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An increase in area of a solid when heated is called area or superficial expansivity.

The given statement is false. Because the induced emf is dependent on the number of coil.  

According to  Faraday's law of electromagnetic induction the rate of change of magnetic flux link with coil is responsible for generating emf in the coil result in the flow of amount of current .

So in order to increase the current we need to increase the EMF;

so we can increase it by;

1) Increasing the number of turns

2) Increase the area of the loop

3) By moving the magnet faster

Hence, the given statement is false.

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Answer: Acceleration

Detailed Explanation:

Acceleration is defined as the rate of change of velocity.

Answer:

A is core

B is convection zone

C is photosphere

D is Chromosphere

Explanation:

The equivalent capacitance of the combination is  [tex]\dfrac{1}{C} = \dfrac{1}{C_1}+\dfrac{1}{C_2}[/tex]  where C1 and C2 are the capacitance of both capacitors in series.

Let the capacitance of both capacitors be C1 and C2. For a series connected capacitors, same charge flows through the capacitors but different voltage flows through them.

Let Q be the amount of charge in each capacitors,

V be the voltage across each capacitors

C be the capacitance of the capacitor.

Using the formula Q = CV where V = Q/C... (1)

For the large capacitor with capacitance of the capacitor C1,

[tex]Q = C_1V_1;[/tex]

[tex]V_1 = \dfrac{Q}{C_1}...(2)[/tex]

where [tex]V_1[/tex] is the voltage across [tex]C_1,[/tex]

For the small capacitor with capacitance of the capacitor [tex]C_2[/tex],

[tex]Q = C_2V_2[/tex];

[tex]V_2 = \dfrac{Q}{C_2} ... (3)[/tex]

where [tex]V_2[/tex] is the voltage across [tex]C_2[/tex],

Total voltage V in the circuit will be;

[tex]V = V_1+V_2... (4)[/tex]

Substituting equation 1, 2 and 3 in equation 4, we have;

[tex]\dfrac{Q}{C} = \dfrac{Q}{C_1} +\dfrac{ Q}{C_2}[/tex]

[tex]\dfrac{Q}{C} = Q({\dfrac{1}{C_1}+\dfrac{1}{C_2})[/tex]

Since change Q is the same for both capacitors since they are in series, they will cancel out to finally have;

[tex]\dfrac{1}{C} = ({\dfrac{1}{C_1}+\dfrac{1}{C_2})[/tex]

This gives the equivalent capacitance of the combination.

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Answer:

f=ma

m=900

a=45-33=12÷1=12

12×900=f

f=10800

Answer:

The formula for density is d = M/V, where d is density, M is mass, and V is volume. Density is commonly expressed in units of grams per cubic centimetre. For example, the density of water is 1 gram per cubic centimetre, and Earth's density is 5.51 grams per cubic centimetre.

Explanation:

sugar dissolves in water = solubility (solvent)

causes ice cubes to get bigger in the ice tray = expand upon freezing

warm water but cold water in the spring = heat capacity/specific heat

"film" on top of water = surface tension

stickiness of water = cohesion

Answer:

See below ~

Explanation:

sugar dissolves in water ⇒ solubility (solvent)

causes ice cubes to get bigger in the ice tray ⇒ expand upon freezing

warm air but cold water in the spring ⇒ heat capacity/specific heat

"film" on top of water ⇒ surface tension

stickiness of water ⇒ cohesion

Answer:

Air pressure decreases as altitude increases.

Explanation:

The charge on the particle when the 4000 v equipotential surface is 26. 0 cm farther from a positively charged particle than the 5000 v equipotential surface is 2.89×10⁻⁵ nC.

The point charge can be found using the following expression.

[tex]q=\dfrac{Vr}{K}[/tex]

Here, V is the potential of a point charge, r is the distance and K is the coulombs constant.

This equation can also be given as,

[tex]r=K\dfrac{q}{V}[/tex]

The 4000 V equipotential surface is 26.0 cm farther from a positively charged particle than the 5000 v equipotential surface. For this case, the distance at both point is,

[tex]r_1=K\dfrac{q}{V_1}\\r_2=K\dfrac{q}{V_2}[/tex]

Subtract both the distance which is equal to 26 cm.

[tex]r_1-r_2=K\dfrac{q}{V_1}-K\dfrac{q}{V_2}\\26=Kq(\dfrac{1}{V_1}-\dfrac{1}{V_2})\\26=(9\times10^9)q(\dfrac{1}{4000}-\dfrac{1}{5000})\\q=2.89\times10^{-14}\rm\; C\\q=2.89\times10^{-5}\rm\; nC[/tex]

Thus, the charge on the particle when the 4000 v equipotential surface is 26. 0 cm farther from a positively charged particle than the 5000 v equipotential surface is 2.89×10⁻⁵ nC.

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Fluorine different from chlorine, bromine, and iodine,because it is the most electronegative and reactive element in the periodic table.

The periodic table is an organization of all known elements in order of increasing atomic number and repeating chemical characteristics.

They are organized in a tabular format, with a row representing an era and a column representing a group.

Elements are ordered in increasing atomic number order from left to right and top to bottom.

Elements of the same group will have the same valence electron configuration and, as a result, will have comparable chemical characteristics.

Elements in the same period, on the other hand, will have an increasing order of valence electrons. Fluorine,chlorine, bromine, and iodine are halogens.

Hence,fluorine different from chlorine, bromine, and iodine because it is the most electronegative and reactive element in the periodic table.

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Fluorine is most electronegative element and halogen in periodic table

In HF

Answer:

for a cell to produce a current the cell electrodes of the cell must have a potential difference option A is the correct answer

Answer:

a = (V2 - V1) / t      equation defining acceleration

Acceleration depends on velocity change and the time interval involved.

The galaxy comprises of various stars. We are unlikely to find earth-like planets around halo stars in the galaxy because Halo stars need few heavy elements to create rocky planets.

A galaxy is a massive cluster of stars held together by t he effect of gravity.

Halo stars formed in an environment where there were few heavy elements to create rocky planets.

Thus, we are unlikely to find earth-like planets around halo stars in the galaxy because Halo stars need few heavy elements to create rocky planets.

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Answer:

The answer is B

Explanation:

hope it helps :)

The magnitude of the circuit current is 0.20 A. The value of the current in the circuit is found with the help of the ohm's law.

Ohm's law claims that the voltage across a conductor is directly proportional to the current flowing through it.

All the resistance combined in the series so that the equivalent resistance is;

[tex]\rm R_{eq}= R_1+R_2+R_3 \\\\ R_{eq}=15+21+24 \\\\ R_{eq}=60 \ ohm[/tex]

This current-voltage connection may be expressed mathematically by the Ohm's Law;

V=IR

[tex]\rm I_{total} = \frac{V}{R_{total}} \\\\ \rm I_{total} = \frac{12}{60} \\\\ I_{total} = 0.20 \ A[/tex]

Hence, the magnitude of the circuit current is 0.20 A.

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Answer:

your answer would be c !

Explanation:

Answer:

H

Explanation:

I think it's H hope that helps