A ray of light is travelling from north towards south and it has travelled 49 km until it hit a mirror which reflected the light towards east. The ray of light reflected towards east has travelled 47 km until it hit another mirror which reflected it diagonally towards the initial point which is north. How long is the line reflected towards north diagonally? Round the result to two decimals.

Answers

Answer 1

Answer: The path is a right triangle. One side of this triangleis 49 km long, the other side is 47 km long.

The hypotenuse is the the diagonal line searched.

So use Pythagora's theorem to find the diagonal line:

Diagonal = √[(47km)^2 + (49km)^2] = 67.90km

Related Questions

Two vertical springs have identical spring constants, but one has a ball of mass m hanging from it and the other has a ball of mass 2m hanging from it. Part A If the energies of the two systems are the same, what is the ratio of the oscillation amplitudes?
Which of the following groups of environmental science careers are most similar?a. Hydrologist, toxicologist, environmental lawyer b. Environmental physician, environmental veterinarian c. Environmental activist, oceanographer, ecologist d. Oceanographer, Environmental journalist
two vectors of same units have magnitude of 8 unit and 5 unit. what are the maximum and minimum magnitude of resultant that can be obtained with the two vectors?
The energy derived from the digestion of food is __________.a. kinetic energy b. inertia c. momentum d. chemical energy
Please hurry! 30 pointsA free body diagram of a brick on an inclined plane is shown below. What is the coefficient of friction?

Which element of art creates edges of shapes and visual cues for the viewer in terms of both motion and space?a. emphasis
b. form
c. line
d. unity

Answers

The element of art that creates edges of shapes and visual cues for the viewer in terms of both motion and space is line. The correct option among all the options that are given in the question is the third option or option "c". The lines have the ability to create a sense of motion when drawn in spaces.

The correct answer for the question that is being presented above is this one: "c. line." The element of art creates edges of shapes and visual cues for the viewer in terms of both motion and space is the line. Line is one of the basic elements of art.

When an object is charged, what type of subatomic particle is transferred between objects?

Answers

Electrons are transferred. The object that loses some becomes positively
charged. The object that gains some becomes negatively charged.

Answer:

electrons

Explanation:

took the k12 test

The volume occupied by three milliliters of water is the same as three cubic centimeters of water

Answers

The volume occupied by three milliliters of water is the same as three cubic centimeters of water is true. The conversion is as follows.

3mL (1 L/1000 mL) (1 m3/1000 L) (100 cm/1 m)^3 = 3 cm3

Potential and kinetic energy 1. An apple falling from a tree
2. A stationary ball on the ground
3. A sleeping dog
4. A boy running across the street
5. A car traveling on the road
6. A stretched rubber band
7. A basketball being thrown
8. A girl biking at the park
9. A leaf lying on the ground
10. A planet revolving around a star

Answers

Here's how potential and kinetic energy relate to the scenarios you've mentioned:

1. An apple falling from a tree: Kinetic energy increases as it falls, while potential energy decreases.

2. A stationary ball on the ground: No kinetic energy (it's not moving), but it has potential energy due to its position above the ground.

3. A sleeping dog: The dog has potential energy due to its position above the ground, but it's not in motion, so there's no significant kinetic energy.

4. A boy running across the street: The boy has both kinetic and potential energy. His motion represents kinetic energy, and his position above the ground while running represents potential energy.

5. A car traveling on the road: The car has both kinetic energy (due to its motion) and potential energy (due to its position above the road).

6. A stretched rubber band: The stretched rubber band has potential energy stored in its stretched configuration.

7. A basketball being thrown: The basketball has both kinetic energy (while it's in motion) and potential energy (when it's at the highest point of its trajectory).

8. A girl biking at the park: Similar to the boy running, the girl on the bike has both kinetic and potential energy.

9. A leaf lying on the ground: The leaf has potential energy due to its position above the ground, but it has little to no kinetic energy unless it's moving in the wind.

10. A planet revolving around a star: The planet has both kinetic energy (due to its orbital motion) and potential energy (related to its position within the gravitational field of the star).

In general, potential energy is associated with an object's position or state, while kinetic energy is associated with its motion.

In which state of matter do the particles spread apart and fill all the space available to them?a. crystal
b. liquid
c. gas
d. solid

Answers

The correct answer is c) gas.

In gases, in fact, particles are not bound together (and the intermolecular forces between them are negligible) and they are completely free to move. For this reason, when a gas is put in a container, the particles of the gas will move in every possible direction, filling all the space available in the container (for this reason, we also say that gases have no fixed shape).

Suppose your rub a balloon in your hair and it acquires a static charge of −2 × 10⁻⁹c. what is the magnitude of the electric field created by the balloon at a location 1 m due north of the balloon? Coulomb’s constant is 9 × 10⁹ N · m²/c² . Answer in units of N/C

Answers

To find the magnitude of the electric field created by the balloon at a location 1 m due north of the balloon, we can use Coulomb's law. Coulomb's law states that the electric field (E) created by a point charge is given by the equation E = k * (Q / r^2), where k is Coulomb's constant, Q is the charge, and r is the distance from the charge.

Given that the charge of the balloon is -2 × 10^(-9) C and the distance from the balloon is 1 m, we can substitute these values into the equation:

E = (9 × 10^9 N · m²/C²) * (-2 × 10^(-9) C) / (1 m)^2

Note that the negative sign indicates the direction of the electric field, which in this case is due north.

E ≈ -18 N/C

Therefore, the magnitude of the electric field created by the balloon at a location 1 m due north of the balloon is approximately 18 N/C.

Other Questions

Mike has a mass of 97 kg. He jumps out of a perfectly good airplane that is 2000 m above the ground. After he falls 1000 m, when his downward speed is 68 m/s, Mike opens his parachute. The positive y-direction is downward.(a) Calculate the average magnitude of the upward force of the air resistance on Mike during his initial descent.(b) After Mike opens his parachute, he continues to descend, eventually reaching the ground with a speed of 4.0 m/s. Calculate the average upward force during this part of Mike's descent.(c) At the same time Mike jumps out of the airplane, his wallet (mass of 0.3 kg) falls out of his pocket. Calculate the wallet's downward speed when it reaches the ground. For this calculation, assume that air resistance is negligible.

A soccer ball is traveling at a velocity of 50 m/s. The kinetic energy of the ball is 500 J. What is the mass of the soccer ball?

a 4768-kg roller coaster train full of riders approaches the loading dock at a speed of 17.1 m/s. It is abruptly decelerated to a speed of 2.2 m/s over a distance of 13.6m. Determine the magnitude of the restraining force that acts upon the roller coaster cars.

The way the brain perceives the intensity of a sound is