by an external force. This principle has wide-ranging applications, from the study of collisions to the behavior of particles in a magnetic field.

Do the entire questions:

One of the most fundamental principles of physics is the conservation of energy. This principle states that energy cannot be created or destroyed, but only transformed from one form to another. This means that the total amount of energy in a system remains constant over time. For example, when a ball is thrown into the air, it gains kinetic energy as it moves upward. As it reaches the top of its trajectory, this kinetic energy is converted into potential energy. When the ball falls back to the ground, the potential energy is converted back into kinetic energy. The total amount of energy in the system remains constant throughout this process

Another important principle of physics is the conservation of momentum. Momentum is a measure of the motion of an object and is defined as the product of an object's mass and its velocity. The conservation of momentum states that the total momentum of a closed system remains constant unless acted upon by an external force. This principle has wide-ranging applications, from the study of collisions to the behavior of particles in a magnetic field.

The principle of relativity is another key concept in physics. This principle states that the laws of physics are the same for all observers in uniform motion relative to one another. This means that there is no preferred frame of reference in the universe, and the laws of physics are the same regardless of where an observer is located. This principle has been confirmed by numerous experiments, including the famous Michelson-Morley experiment, and is a cornerstone of modern physics.

One of the most intriguing principles of physics is quantum mechanics. This branch of physics deals with the behavior of particles on the smallest scales, such as atoms and subatomic particles. According to quantum mechanics, particles can exist in multiple states at once, and their behavior is described by probabilities rather than definite outcomes. This principle has led to the development of numerous technologies, including the laser and the transistor, and has transformed our understanding of the natural world.

Finally, the principle of entropy is a fundamental concept in thermodynamics. Entropy is a measure of the disorder or randomness of a system, and the second law of thermodynamics states that the entropy of a closed system always increases over time. This means that energy is always moving from areas of higher concentration to areas of lower concentration, and that the universe as a whole is moving towards a state of maximum entropy or disorder.

In conclusion, the fundamental principles of physics provide us with a powerful framework for understanding the natural world. From the conservation of energy and momentum to the principles of relativity and quantum mechanics, these concepts have revolutionized our understanding of the universe and have led to countless technological advancements. By continuing to explore these principles, we can unlock new insights into the workings of the universe and continue to expand our knowledge of the natural world.

Motion Lab - AbstractYou will determine the horizontal distance travelled by

a horizontally launched projectile from a known height.

Objectives - After completing today's experiment, you will be able to:

• Describe in words from your experiences how the principles of projectile motion impact where a object flying through the air will land
• Relate your experiment to a USEFUL REAL WORLD APPLICATION (you can specify this in #4 below)
• Consider further analysis

Materials/Procedure/Data:Use video you recorded and measurement to gather data from your home setup - decide on the units you will use and

how you will record them.

Analysis: Use the principles of projectile motion to determine where to place your target using only the initial horizontal tabletop velocity you

calculated and the measured vertical height. Once you've done your calculation place your target accordingly, launch your projectile

(marble, gold ball, ....) and record where it lands. Calculate your % error ( you may find it will be more than 15%) between your

calculated prediction and where the projectile landed.

Conclusion:

Additional Questions to Answer (include these in the analysis section):

1. What are the key assumptions you need to make in conducting projectile motion problems?

NOTE: watch the bowling ball gun YouTube video first then answer it here is the link :

https://www.youtube.com/watch?v=CXdTKdEURCA

1. Abowling ball gunis fired horizontally at 248 m/s off a 192 m high cliff.
   1. Where does the bowling ball land?
   2. Where would a golf ball land? Why? Explain.
   3. What is the velocity at impact with the ground? Make sure to include the impact angle.

1. A baseball is thrown horizontally off the rooftop of a building - the ball strikes the ground with a velocity of 41.4 m/s [ E 54⁰down from the horizontal ].
   1. Find the height of the building.
   2. Determine where the ball landed.
   3. Was it a six-year-old child who threw the ball? Explain.

Watch thisvideo.here is the link :

https://www.youtube.com/watch?v=ui-xBeqBNi4

Think of two careers where the knowledge of projectile motion is important and explain how it is used in those areas.

NOTE for tutors :

1) dont use chatgpt other wise if I see anything I would give a bad rate and a report

2) watch the videos that I have the link on and answer the answers from the videos

\fAssignment 8 - Sound (5) A stretched wire vibrates in its fundamental mode at a fre- (#1) kn-prob2130.problem quency of 450 Hz. What would be the fundamental frequency Due date: Tue Apr 11 11:59:59 pm 2023 (EDT) if the wire were half as long, its diameter were doubled, and its tension were decreased by a factor of two? (1) Two strings are adjusted to vibrate at exactly 331.0 Hz. Then the tension in one string is increased slightly. After- Tries 0/10 ward, 37.00 beats per second are heard when the strings vi- brate at the same time. What is the new frequency of the (#6) cj-prob1702.problem string that was tightened? 6) Two identical speakers, one directly behind the other, are generating a 392 Hz sound wave. What is the smallest Tries 0/10 separation distance between the speakers that will produce destructive interference at the position of a listener standing #2) cj-prob1733a.problem in front of them? The speed of sound in air is 343 m/s. (2a) A string has a linear density of 8.5E-3 kg/m and is under 263 N of tension. The string is 1.5 m long is fixed at both Tries 0/10 ends and is vibrating in the standing wave pattern shown in the drawing. Determine the speed of the traveling waves that (#7) sb-prob1838a.problem make up the standing wave. (7a) When a hollow metal pipe that is open at both ends is cut into two pieces, the lowest resonance frequency in one Tries 0/10 piece is 258 Hz and that for the other is 409 Hz. What lowest resonant frequency would have been produced by the original K length of pipe? Assume the speed of sound in air is 345 m/s. Tries 0/10 (7b) How long was the original pipe? Tries 0/10 (2b) What is the wavelength? (#8) kn-prob2144.problem Tries 0/10 (8) A 102.3 g cord has an equilibrium length of 5.68 m. The (2c) What is the frequency? cord is stretched horizontally to a length of 7.47 m, then vibrated at 28.2 Hz. This produces a standing wave with two Tries 0/10 antinodes. What is the spring constant of the cord? Tries 0/10 (#3) kn-prob2142.problem (3) A heavy piece of hanging sculpture is suspended by a 92.4 cm long, 6.09 g steel wire. When the wind blows hard, the (#9) kn-prob2112a.problem wire hums at its fundamental frequency of 62.4 Hz. What is 9a) A 134.7 cm long, 8.27 g string, fixed at both ends, oscil the mass of the sculpture? lates in its n = 3.00 mode with a frequency of 338.0 Hz and a maximum amplitude of 4.96 mm. What is the wavelength Tries 0/10 of the oscillation? Tries 0/10 (#4) kn-prob2152.problem (4) A 43.8cm long wire with a mass of 3.60g and a tension (9b) What is the tension in the string? of 627.ON passes across the open end of an open-closed tube of air. The wire, which is fixed at both ends, is bowed at Tries 0/10 the center so as to vibrate at its fundamental frequency and generate a sound wave. Then the tube length is adjusted (#10) kn-prob2116a.problem until the fundamental frequency of the tube is heard. What (10a) What is the longest wavelength for standing sound is the length of the tube? (Assume sound = 340.0m/s) waves in a 134.8cm long tube that is open at both ends? Tries 0/10 Tries 0/10 (10b) What is the second longest wavelength? (#5) sb-prob1822.problemPart A This collision is elastic. What quantities, if any, are conserved in this collision? View Available Hint(s) O kinetic energy only O momentum only O kinetic energy and momentum SubmitPart B What is the final speed up of block 1? Express up in terms of my, ma, and uj. View Available Hint(s) VO SubmitPart C What is the final speed of of block 2? Express of in terms of m1, me, and ui. View Available Hint(s) AEd ? Up = SubmitItem 12 Jeanette is playing in a 9-ball pool tournament. She will win if she sinks the 9-ball from the final rack, so she needs to line up her shot precisely. Both the cue ball and the 9-ball have mass m, and the cue ball is hit at an initial speed of vi. Jeanette carefully hits the cue ball into the 9-ball off center, so that when the balls collide, they move away from each other at the same angle d from the direction in which the cue ball was originally traveling (see figure). Furthermore, after the collision, the cue ball moves away at speed vr, while the 9-ball moves at speed vg. (Figure 1) For the purposes of this problem, assume that the collision is perfectly elastic, neglect friction, and ignore the spinning of the balls. Figure