Two examples of an insulator

Answers

Answer 1

Answer:

Some examples of insulators are plastic, glass and rubber.

Related Questions

Lyndon is investigating whether putting plastic on her windows will help seal out cold winter drafts. She covers a window on the south side of her house with plastic and measures the inside temperature near the window. She also measures the inside temperature near a window without plastic on the north side of her house. The windows are the same size and design. Why is this not an ideal controlled investigation? A. The windows should be different sizes to introduce variation. B. The drafts at each window may be different because the windows aren’t near each other. C. Temperature isn’t a good indicator of cold winter drafts. D. Outside temperature is a better indicator of cold winter drafts than inside temperature. E. The type of plastic used in the investigation isn’t mentioned
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Which statement about speed and/or velocity is true?Velocity has both speed and direction.

Speed is constant.

Speed has direction and velocity.

Speed is measured over time.

Answers

The statement about speed and/or velocity which is true is: Velocity has both speed and direction.

Velocity refers to the rate of change in displacement (distance) with time. Velocity is a vector quantity and this simply means that, it has both magnitude (speed) and direction.

Mathematically, velocity is given by the formula;

$Velocity = (Distance)/(Time)$

On a related note, speed is a scalar quantity because it has magnitude but no direction.

However, both speed and velocity are measured in meters per seconds.

In conclusion, the relationship between speed and velocity is that velocity has both speed and direction.

Answer:

Velocity has both speed and direction.

Explanation:

speed is a part of velocity

What happens in a change in temperature as it is heated

Answers

It increases in temperature

A toy car runs off the edge of a table that is 1.225m high .the car lands 0.400m from the base of the table .

Answers

Answer:

a) 0.5s

b) 2.45m/s

Explanation:

The toy car in figure 6-12 runs off the edge of a table that is 1.225m high. The car lands 0.400m from the base of a table.

a) How long did it take the car to fall?

b) How fast was the car going on the table?

don't now if this helps but let me now if it did

Final answer:

The question is about a physics concept called projectile motion. First, we calculate the time the toy car is in the air using the height of the table and gravity, and then we find the horizontal velocity of the car as it leaves the table.

Explanation:

The question is about a situation where a toy car runs off the edge of a table and lands on the floor. This situation is a classic problem in physics pertaining to projectile motion or the motion of an object thrown in the atmosphere. Here, the motion is two-dimensional, including both vertical (free fall) and horizontal (uniform) motion.

First, calculate how much time the car is in the air using the height of the table and the acceleration due to gravity (approx. 9.81 m/s²). Using the free fall equation, t = √(2h/g), where h is the height of the table and g is the gravity, we get t = √(2*1.225m/9.81 m/s²) = 0.5 seconds. This is the time it takes for the car to hit the floor.

Next, we find the horizontal velocity using the formula s = d/t, where s is speed, d is distance and t is time. So, s = 0.400m/0.5s = 0.8 m/s. This is the speed of the car as it leaves the table.

Learn more about Projectile Motion here:

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the brakes on a car do 240000j of work in stopping the car. if the car travels a distance of 40m while the brakes re being applied. how large is the average force that the brakes exert the car?

Answers

The magnitude of the average force that the brakes exert the car is 6,000 N.

The given parameters;

work done on the car by brake, W = 240,000 J
distance traveled by the car, d = 40 m

The magnitude of the average force that the brakes exert the car is calculated as follows;

W = Fd

where;

F is the average force

Make "F" the subject of the formula, to determine the magnitude of the average force of the brake.

$F = (W)/(d) \n\nF = (240,000)/(40) \n\nF = 6,000 \ N$

Thus, the magnitude of the average force that the brakes exert the car is 6,000 N.

Learn more here:brainly.com/question/4416095

Explain how light travels

Answers

Light is a type of energy called an electromagnetic wave. This means that it travels through the atmosphere in these waves, which normally can only go in a straight line. It can only change direction via reflection or refraction but not of it's own accord. Light travels very rapidly, one wave could circle the globe 7.5 times in a second.

Which wave causes the medium to vibrate only in a direction parallel to the wave's motion?

Answers

longitudinal waves causes the medium to vibrate only in a direction parallel to the wave's motion

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