PHYSICS HIGH SCHOOL

A _________ engine operates using a three-sided metal rotor instead of the traditional piston-and-cylinder arrangement.a. diesel engine
b. electric engine
c. LP gas engine
d. Wankel engine

Answers

Answer 1
Answer:
That's a description of what makes the "Wankel engine" unique.

When it first came to the USA market, it came as the guts of a
new brand of car . . . the Mazda.  I don't know if some, or all, or
none of today's Mazdas still use the Wankel 'rotary' engine.

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What is happening if energy input remains constant and voltage remains the same in a circuit, but the current decreases?The resistance has increased.
The volts have decreased.
The power has increased.

Answers

If energy input remains constant and voltage remains the same in a circuit, but the current decreases, the power has increased. It is presented in the equation P = VI where P is power, V is voltage and I is current.

You would convert from grams to moles by using the ___________ of the substance.a. Ionization energy
c. Atomic number
b. Molar mass
d. Avogadro’s number

Answers

You would convert from grams to moles by using the molar mass of the substance. The answer is letter B. for example, the molar mass Carbon dioxide is 44.01 g/mol. It means that for 1 mole of carbon dioxide, it contains 44.01 grams of Carbon dioxide.

Determine the weight of a 2959.0-kg car that is moving at a speed of 21 m/s. Enter anumerical answer.

Answers

The weight of a 2959.0-kg car that is moving at a speed of 21 m / s would be 28998.2 Newtons, here speed of the car is the redundant value that is not used to calculate the weight of the car.

What is gravity?

It can be defined as the force by which a body attracts another body toward its center as the result of the gravitational pull of one body and another.

As given in the problem, we have to determine the weight of a 2959.0-kg car that is moving at a speed of 21 m / s .

The weight of the car = mass of the car × acceleration due to gravity

                                    = 2959 × 9.8

                                    = 28998.2 Newtons

Thus, the weight of a 2959.0-kg car that is moving at a speed of 21 m / s would be 28998.2 Newtons.

To learn more about gravity here, refer to the link given below ;

brainly.com/question/4014727

#SPJ2

weight=mass*gravity

w=2959.0*10

w=29590N

In a transverse wave that travels through a medium, the molecules of the medium vibrateA. at right angles to the direction in which the wave travels.
B. at twice the velocity of the molecules in a longitudinal wave.
C. with smaller amplitudes than the molecules in a longitudinal wave.
D. in the direction in which the wave travels

Answers

So we wan't to know how the molecules of the medium vibrate when a transverse wave propagates trough that medium. A transverse wave is a wave whos oscilations are perpendicular to the direction of it's propagation. So the molecules in a medium will vibrate perpendicular to the direction of propagation of the wave. So if the wave is moving in the x-direction, the molecules will vibrate in the y-z plane. The correct answer is A. at right angles to the direction in which the wave propagates.

The average kinetic energy of the atoms that make up a substance which is changing from a liquid to a solid is _____________.Select one of the options below as your answer:
a. decreasing
b. increasing
c. unchanged

Answers

The average kinetic energy of the atoms that make up a substance which is changing from a liquid to a solid is decreasing. The answer is letter A. This  is because there is more room for movement of atoms if the pahse is in liquid than in solid.

Displacement vectors of 5 km north, 3 km east, 2 km south, and 3 km west combine to a total displacement of ___

Answers

The answer is A. 3 km north

Displacement (D) is the shortest distance from the initial to the final position.
In this example, distance is 5 km north - 2 km south = 3 km north (look at the image).
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