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The correct answer is #4. They have the same number of protons but a different number of neutrons.

**Answer:**

PE = mgh

137200 = mg x 200

686 = mg

686/9.81 = m

m = 69.9286

Current is inversely proportional to resistance, ie the more resistance, the less current, so the 4 ohm resistor will have the most current

KE = ½ m v^2

so it depends on its speed (and mass)

so it depends on its speed (and mass)

**Answer: The correct answer is 100 W.**

**Explanation:**

**The expression for the power in terms of voltage and the current is as follows;**

**P=VI .......... (1)**

**Here, P is the power, V is the voltage and I is the current.**

It is given in the problem that a 100 W light bulb and a 75 W light bulb operate from 220 V .

**Calculate the current for light bulb, 100 W by rearranging the above expression.**

Put P= 100 W and V= 220 V.

**I= 0.45 A**

**Calculate the current for light bulb, 75 W by expression (1).**

Put P= 75 W and V= 220 V.

**I= 0.34 A**

Therefore, 100 W light bulb has a greater current in it

Assuming it is on a horizontal surface:

friction = μR

R = 20g (g is gravity 9.81)

so Friction = 0.085 x 20g

Work done is force x distance

so Work done = 0.085 x 20g x 28

= 466.956 J

friction = μR

R = 20g (g is gravity 9.81)

so Friction = 0.085 x 20g

Work done is force x distance

so Work done = 0.085 x 20g x 28

= 466.956 J

A. large force over a long time

Answer:

A and D

Explanation:

The first step is to calculate the acceleration (a) of the ball.

a = (v-u)/t

where a⇒acceleration

v ⇒final velocity = 0 m/s

u ⇒initial velocity =32 m/s

∴a = (0 - 32)/0.8

=

The acceleration is negative indication the softball was decelerating.

Now force of impact;

F = ma

where m⇒ mass of the softball in kilogram

F = 0.2×-40

= -8

But force can not be negative,

So, impact force =

If the amount of CFCs in the atmosphere decrease then the 'hole' above Antarctica will get smaller and smaller.

Velocity is a vector quantity and depends on both speed and direction.

In 100m you only travel straight in one direction.

But in 400m you have to turn corners and then go back the way you came, and then turn another corner, you're changing direction - hence changing velocity, even if the speed is the same.

In 100m you only travel straight in one direction.

But in 400m you have to turn corners and then go back the way you came, and then turn another corner, you're changing direction - hence changing velocity, even if the speed is the same.

Iron sheet because the molecules are more condense.

I guess Im Not sure

I guess Im Not sure

Electrons

eg;;;;;; when enough electrons are added so that there are more electrons than protons, the atom becomes a negatively charged ion

eg;;;;;; when enough electrons are added so that there are more electrons than protons, the atom becomes a negatively charged ion

The correct choice is

15 centimeters

The diffraction of the sound waves takes place when the wavelength of sound wave is comparable with the size of the object. Waves of wavelengths 1 meter, 5 meter, and 12.5 meters are comparable to the size of the doorway while the wavelength 15 centimeters is very small compared to the size of the doorway. hence the waves of wavelength 15 cm diffracts the least.

They should take him to their coach, or the athletic trainer.

V = IR

V/I = R

9/0.5 = R

R = 18 ohms

V/I = R

9/0.5 = R

R = 18 ohms

The accurate answer is:

You could expect a white paper to have a red tone when viewed in a red light. This is the case because of the neutrality of the white paper.

You could expect a white paper to have a red tone when viewed in a red light. This is the case because of the neutrality of the white paper.

**Answer:**

** A. Test tube.**

**Explanation:**

The test tubes are used to collect samples of a particular liquid.

A graduated cylinder is like a test tube but it has marks on the tube to measure the volume of a liquid.

A ruler is used to measure length.

And finally, a thermometer is used to measure the temperature.

I hope this answer helps you.

The answer you're looking for is True

The rest of the bulbs stop shining and shut off.

Correct your answer to the amount of significant figures the questions wants

The correct answer is **BEACH**. I just finished the assignment and that's the correct answer.

45 is the correct answer

The answer is **A**.
Neuralization occurs when a base is mixed with an acid and the general equation
is;

**acid + base(alkali) → salt + water**

Another application of neutralization, other than its application in antiacids, is its use in fertilizer to bring bask coils pH to the required standard for optimum growth of plants.

**Answer:**

the answer is : **the amount of heat released or absorbed by a substance.**

**Explanation:**

Ask Barry Allen he’s the faster man alive

The answer would be **5**.

Equation = C3 H8 + O2 → Co2 + H2O

Balanced equation = C3H8 + O2 → 3CO2 + 4H2O

In the first part, left side, has 2 oxygens, and the next one has 10. So in order to turn 2 into 10, add the coefficient 5.

Equation = C3 H8 + O2 → Co2 + H2O

Balanced equation = C3H8 + O2 → 3CO2 + 4H2O

In the first part, left side, has 2 oxygens, and the next one has 10. So in order to turn 2 into 10, add the coefficient 5.

**Answer:**

7.9 is the correct answer.

**Explanation:**

You will need to use this formula:

V = Vo + a x t

**V -** Final velocity // If it comes to a complete stop,it will be 0 m/s.

**Vo - **Initial velocity = 27 m/s

**a - **Acceleration = ? m/s^2 // All units are in S.I

**t - **Time = 14 secs

So:

**-> **0 = 27 + a x 14

**-> **14a + 27 = 0

**-> **14a = -27

**-> **a = -27/14

**-> **a = -1.928... m/s^2

Rounding to the nearest hundredth: -1.93 m/s^2.

Answer: The acceleration of the car is -1.93 m/s^2.

V = Vo + a x t

So:

Rounding to the nearest hundredth: -1.93 m/s^2.

Answer: The acceleration of the car is -1.93 m/s^2.

Speed (velocity)=distance/time

V1=98km/4hr=24.5km/hr

V2=61km/3hr=20.3km/hr

Average speed (velocity)=total velocity/ number

Average speed (velocity)=44.8km/hr/2=22.4

So the average speed is 22.4km/hr

V1=98km/4hr=24.5km/hr

V2=61km/3hr=20.3km/hr

Average speed (velocity)=total velocity/ number

Average speed (velocity)=44.8km/hr/2=22.4

So the average speed is 22.4km/hr