How many miles can you get on one tank of gas if your tank holds 18 gallons and you get 22 miles per gallon?

Answers

Answer 1
Answer: Multiply the two. The units will cancel out. 22 miles per gallon can be expressed as 22 miles / 1 gallon, so you can write the following:
18 gallons * 22 miles / 1 gallon
Which simplifies to 18 * 22 miles = 396 miles.
Answer 2
Answer:

Answer: 18*22=396

Explanation:

18*22=

(10*22) + (8*22)=

220+176=396


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If a step-up transformer has a primary coil with 15 turns, how many turns would be required in the secondary coil in order to increase the voltage from 80 volts to 160 volts? A. 8 turns B. 30 turns C. 80 turns D. 160 turns

Answers

Answer:

N_2=30turns

So option (b) will be correct option

Explanation:

We have given that there is a step up transformer in which number of turns in primary coil is 15

That is, N_1=15

Primary voltage V_1=80volt, and secondary voltage V_2=160volt

We have to find the number of turns in the secondary \

We know that for the transformer

(N_1)/(N_2)=(V_1)/(V_2)

(15)/(N_2)=(80)/(160)

N_2=30turns

So option (b) will be correct option

Elements that are what tend to be in the what state at room temperature.

Answers

Answer:

hot

Explanation:

cause the room temperature is higher

Sign of the charge???A glass marble is rubbed against a piece of silk. As a result the piece of fabric acquires extra electrons. What happens to the glass marble? (a)The marble has lost the same number of electrons acquired by the piece of silk. (b)The marble has acquired the same number of electrons acquired by the piece of silk. (c)The marble acquires a positive charge and repels the piece of silk. (d)The marble acquires a positive charge and attracts the piece of silk. (e)The marble acquires a negative charge and attracts the piece of silk. (f)The marble acquires a negative charge and repels the piece of silk. There may be more than one answer.

Answers

The right answer for the question that is being asked and shown above is that: "(b)The marble has acquired the same number of electrons acquired by the piece of silk; (f)The marble acquires a negative charge and repels the piece of silk."

What is the net force acting on the child? –100 N 0 N 100 N 200 N

Answers

The net force acting on the child is 200N.

What is Net force?

When two or more forces are acting on the system of objects, then the to attain equilibrium, net force must be zero.

The net force acting on the child will be

Net force = Sum of all the individual force with sign

Net force = -100 + 0 + 100 +200

Net force = 200 N.

Therefore, the net force acting on the child is 200 N.

Learn more about net force.

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-100+0+100+200
=
200 N

What letter would be a likely place for mystery element

Answers

Answer:

make use of a semi-formal letter

A 2-kg rock is thrown vertically upward at a speed of 3.2 m/s from the surface of the moon. If it returns to its starting point in 4 seconds, what is the acceleration due to gravity on the moon?

Answers

Answer:

1.6 m/s2

Explanation:

Let g_m be the gravitational acceleration of the moon. We know that due to the law of energy conservation, kinetic energy (and speed) of the rock when being thrown upwards from the surface and when it returns to the surface is the same. Given that g_m stays constant, we can conclude that the time it takes to reach its highest point, aka 0 velocity, is the same as the time it takes to fall down from that point to the surface, which is half of the total time, or 4 / 2 = 2 seconds.

So essentially it takes 2s to decelerate from 3.2 m/s to 0. We can use this information to calculate g_m

g_m = (\Delta v)/(\Delta t) = (0 - 3.2)/(2) = (-3.2)/(2) = -1.6 m/s^2

So the gravitational acceleration on the Moon is 1.6 m/s2