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- https://phys.libretexts.org/Courses/Coalinga_College/Physical_Science_for_Educators_(CID%3A_PHYS_14)/09%3A_Motion/9.02%3A_Introduction-_Fundamentals_of_Motion-_Scientific_Overview/9.2.03%3A_Resolving_Vectors_into_ComponentsOne of the methods we can use to add these vectors is to resolve each one into a pair of vectors that lay on the north-south and east-west axes. The two vectors we are to add is a force of 65 N at 30°...One of the methods we can use to add these vectors is to resolve each one into a pair of vectors that lay on the north-south and east-west axes. The two vectors we are to add is a force of 65 N at 30° north of east and a force of 35 N at 60° north of west. Using trigonometry, we can resolve (break down) each of these vectors into a pair of vectors that lay on the axial lines (shown in red above).
- https://phys.libretexts.org/Courses/Coalinga_College/Physical_Science_for_Educators_(CID%3A_PHYS_14)/09%3A_Motion/9.03%3A_Motion_in_One-Dimension/9.3.04%3A_Instantaneous_VelocityIf the object is moving with constant velocity, then the instantaneous velocity at every moment, the average velocity, and the constant velocity are all the same. In the image above, the red line is t...If the object is moving with constant velocity, then the instantaneous velocity at every moment, the average velocity, and the constant velocity are all the same. In the image above, the red line is the position vs time graph and the blue line is an approximated slope for the line at t=2.5 seconds. For constant velocity motion, the slope gives the constant velocity, the average velocity, and the instantaneous velocity at every point.
- https://phys.libretexts.org/Courses/Coalinga_College/Physical_Science_for_Educators_(CID%3A_PHYS_14)/09%3A_Motion/9.02%3A_Introduction-_Fundamentals_of_Motion-_Scientific_Overview/9.2.04%3A_Vector_AdditionThe sum of the two vectors is the vector that begins at the origin of the first vector and goes to the ending of the second vector, as shown below. The resultant, or sum, vector would be the vector fr...The sum of the two vectors is the vector that begins at the origin of the first vector and goes to the ending of the second vector, as shown below. The resultant, or sum, vector would be the vector from the origin of the first vector to the arrowhead of the last vector; the magnitude and direction of this sum vector would then be measured.
- https://phys.libretexts.org/Courses/Fresno_City_College/NATSCI-1A%3A_Natural_Science_for_Educators_Fresno_City_College_(CID%3A_PHYS_140)/03%3A_Motion/3.02%3A_Motion_in_One-Dimension/3.2.05%3A_Average_AccelerationAverage acceleration, a, is defined as the rate of change of velocity, or the change in velocity per unit time. If the initial velocity is +15.0 m/s and 5.0 s is required to slow down to +5.0 m/s, wha...Average acceleration, a, is defined as the rate of change of velocity, or the change in velocity per unit time. If the initial velocity is +15.0 m/s and 5.0 s is required to slow down to +5.0 m/s, what was the car’s acceleration? Average acceleration is the rate of change of velocity, or the change in velocity per unit time. If an automobile slows from +26 m/s to +18 m/s in a period of 4.0 s, what was the average acceleration?
- https://phys.libretexts.org/Courses/Fresno_City_College/NATSCI-1A%3A_Natural_Science_for_Educators_Fresno_City_College_(CID%3A_PHYS_140)/06%3A_Circular_Motion_and_Gravity/6.01%3A_Circular_MotionThe acceleration in the case of uniform circular motion is the change in the direction of the velocity, but not its magnitude. For an object traveling in a circular path, the centripetal acceleration ...The acceleration in the case of uniform circular motion is the change in the direction of the velocity, but not its magnitude. For an object traveling in a circular path, the centripetal acceleration is directly related to the square of the velocity of the object and inversely related to the radius of the circle. We first determine the velocity of the ball using the facts that the circumference of the circle is 2πr and the ball goes around exactly twice per second.
- https://phys.libretexts.org/Courses/Fresno_City_College/NATSCI-1A%3A_Natural_Science_for_Educators_Fresno_City_College_(CID%3A_PHYS_140)/10%3A_Property_of_Sound_Doppler_Effect_and_Interferences/10.03%3A_Sound_WavesThe tree above generated sound waves when it fell to the ground, so it made sound according to the scientific definition. In longitudinal waves, particles of the medium vibrate back and forth parallel...The tree above generated sound waves when it fell to the ground, so it made sound according to the scientific definition. In longitudinal waves, particles of the medium vibrate back and forth parallel to the direction that the waves travel. Q: If there were no air particles to carry the vibrations away from the guitar string, how would sound reach the ear? That’s because the sound couldn’t travel away from the clock without air particles to pass the sound energy along.
- https://phys.libretexts.org/Courses/Fresno_City_College/NATSCI-1A%3A_Natural_Science_for_Educators_Fresno_City_College_(CID%3A_PHYS_140)/10%3A_Property_of_Sound_Doppler_Effect_and_Interferences/10.05%3A_Intensity_and_Loudness_of_SoundThe loudness of sound is determined, in turn, by the intensity of the sound waves. Intensity results from two factors: the amplitude of the sound waves and how far they have traveled from the source o...The loudness of sound is determined, in turn, by the intensity of the sound waves. Intensity results from two factors: the amplitude of the sound waves and how far they have traveled from the source of the sound. The same amount of energy is spread over a greater area, so the intensity and loudness of the sound is less. Intensity of sound results from two factors: the amplitude of the sound waves and how far they have traveled from the source of the sound.
- https://phys.libretexts.org/Courses/Coalinga_College/Physical_Science_for_Educators_(CID%3A_PHYS_14)/09%3A_Motion/9.03%3A_Motion_in_One-Dimension/9.3.05%3A_Average_AccelerationAverage acceleration, a, is defined as the rate of change of velocity, or the change in velocity per unit time. If the initial velocity is +15.0 m/s and 5.0 s is required to slow down to +5.0 m/s, wha...Average acceleration, a, is defined as the rate of change of velocity, or the change in velocity per unit time. If the initial velocity is +15.0 m/s and 5.0 s is required to slow down to +5.0 m/s, what was the car’s acceleration? Average acceleration is the rate of change of velocity, or the change in velocity per unit time. If an automobile slows from +26 m/s to +18 m/s in a period of 4.0 s, what was the average acceleration?
- https://phys.libretexts.org/Courses/Coalinga_College/Physical_Science_for_Educators_(CID%3A_PHYS_14)/09%3A_Motion/9.02%3A_Introduction-_Fundamentals_of_Motion-_Scientific_Overview/9.2.01%3A_Scope_of_PhysicsPhysics is the branch of science that studies the physical world, including objects as small as subatomic particles and as large as galaxies. While it is true that many physics classes focus on the eq...Physics is the branch of science that studies the physical world, including objects as small as subatomic particles and as large as galaxies. While it is true that many physics classes focus on the equations, it is important to remember that the purpose of physics is less about the problems and more about using equations, laws, and theories to understand the world we live in.
- https://phys.libretexts.org/Courses/Coalinga_College/Physical_Science_for_Educators_(CID%3A_PHYS_14)/14%3A_Property_of_Sound_Doppler_Effect_and_Interferences/14.05%3A_Intensity_and_Loudness_of_SoundThe loudness of sound is determined, in turn, by the intensity of the sound waves. Intensity results from two factors: the amplitude of the sound waves and how far they have traveled from the source o...The loudness of sound is determined, in turn, by the intensity of the sound waves. Intensity results from two factors: the amplitude of the sound waves and how far they have traveled from the source of the sound. The same amount of energy is spread over a greater area, so the intensity and loudness of the sound is less. Intensity of sound results from two factors: the amplitude of the sound waves and how far they have traveled from the source of the sound.
- https://phys.libretexts.org/Courses/Coalinga_College/Physical_Science_for_Educators_(CID%3A_PHYS_14)/09%3A_Motion/9.03%3A_Motion_in_One-Dimension/9.3.06%3A_Uniform_Acceleration(a) This car is speeding up as it moves toward the right (positive x-direction), so it has positive acceleration in our coordinate system. (b) This car is slowing down as it moves toward the right, so...(a) This car is speeding up as it moves toward the right (positive x-direction), so it has positive acceleration in our coordinate system. (b) This car is slowing down as it moves toward the right, so it has negative acceleration in our coordinate system because the acceleration is toward the left (negative x-direction).
