PHYSICS HIGH SCHOOL

? Which is the only condition under which a concave mirror forms a virtual and upright image on the principal axis?

Answers

Answer 1
Answer: The only condition under which a concave mirror forms a virtual and upright image on the principal axis is when there is a concave mirror with the object in front of the focal point. This is the only positioning available for the said image to be formed.

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Where does the material for new mountain ranges come from

Answers

In the formation of mountain ranges and all other landforms, there is always a cycle involved. As one mountain comes up, another land gets pushed down into the hot mantle, where the rock will melt. Due to convection currents, the tectonic plates move and their boundaries cause them to interact with each other. As mountain ranges are formed, other land gets pushed up forming what we know are mountains, with rising magma from other parts of the world solidifying creating new rock to fill the empty space.

In ultrasound physics, which of the following is improved by increasing packet size ?

Answers


You're going to have to give me the choices.
I'm pretty sketchy on that subject.

A horizontal line on a distance-time graph means the object isa. moving at a constant speed.
b. moving faster.
c. slowing down.
d. at rest.

Answers

At rest because if the distance is not changing, then it is not moving any further, so it must not be moving! The time keeps going no matter what, so the distance, whether it is 0 m or 10,000 km, if the y is horizontal the distance does not change. 

The NGC 3603 region of space is shown below. It is acloud of gas and dust. Stars are forming in this cloud,
How would NGC 3603 be classified?
O A. As a galaxy
O B. As a nebula
O C. As a planet
D. As a solar system

Answers

B. It would be classified as a nebula

Answer:

A. NGC 3603 would be classified as Nebula

Explanation:

A traveler first drives 18.6 km east, then 30.3 km southeast, and finally 10.7 km south. Find the traveler's total displacement ?

Answers

If a traveler first drives 18.6 km east, then 30.3 km southeast, and finally 10.7 km south then the traveler's total displacement would be 51.30 kilometers.

What is displacement?

An object's position changes if it moves in relation to a reference frame, such as when a passenger moves to the back of an airplane or a professor moves to the right in relation to a whiteboard. Displacement describes this shift in location.

As given in the problem If a traveler first drives 18.6 km east, then 30.3 km southeast, and finally 10.7 km south then we have to find the traveler's total displacement,

the total displacement in the east direction = 18.6 + 30.3Cos45°

the total displacement in the east direction = 40 km

the total displacement in the south direction = 10.7 + 30.3Cos45°

the total displacement in the south direction = 32.12 km

The net resultant displacement = √(40² + 32.12²)

The net resultant displacement = 51.30 kilometers

Thus, the traveler's total displacement comes out to be 51.30 kilometers.

Learn more about displacement here, refer to the link;

brainly.com/question/10919017

#SPJ2
East: 18.6+30.3/(sqrt2)
South: 19.7+30.3/(sqrt2)
Total displacement: sqrt(east^2+south^2) is 57.3 km

How can you determine the speed of an object with only a tape measure and a stopwatch?

Answers

We can determine the speed of an object with only a tape measure and a stopwatch first by measuring the distance traveled by any given body and simultaneously measuring the time taken to cover this distance with the help of the stopwatch

What is speed?

The total distance covered by any object per unit of time is known as speed. It depends only on the magnitude of the moving object. The unit of speed is meter/second. The generally considered unit for speed is a meter per second.

The mathematical expression for speed is given by

speed = total distance /Total time

Suppose a body travels a total distance of 750 meters in a total time of 75 seconds, we can measure this distance with the help of a tape measure and the time with the help of a stopwatch  its speed would be 4 meters/seconds

speed = distance measured by tape measure /stopwatch time

          = 750/75

          = 10 m/s

Thus, we can determine the speed of an object with only a tape measure and a stopwatch

Learn more about speed from here

brainly.com/question/7359669

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see how far the object travels in the amount of time
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