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- https://phys.libretexts.org/Courses/HACC_Central_Pennsylvania's_Community_College/Introduction_to_Physical_Science/01%3A_What_is_Science/1.02%3A_Lecture_2_-_Physical_Quantities_and_UnitsThe lesson is based on section 1.2 in the OpenStax College Physics textbook. The lecture slides are provided in PowerPoint, Keynote, and pdf format.
- https://phys.libretexts.org/Courses/Tuskegee_University/Algebra_Based_Physics_I/02%3A_One-Dimensional_Kinematics/2.05%3A_AccelerationAcceleration is the rate at which velocity changes. In symbols, average acceleration a− is a−= ΔvΔt=vf−v0tf−t0. The SI unit for acceleration is m/s2 . Acceleration is a vector, and thus has a both...Acceleration is the rate at which velocity changes. In symbols, average acceleration a− is a−= ΔvΔt=vf−v0tf−t0. The SI unit for acceleration is m/s2 . Acceleration is a vector, and thus has a both a magnitude and direction. Acceleration can be caused by either a change in the magnitude or the direction of the velocity. Instantaneous acceleration a is the acceleration at a specific instant in time. Deceleration is an acceleration with a direction opposite to that of the velocity.
- https://phys.libretexts.org/Courses/Tuskegee_University/Algebra_Based_Physics_I/02%3A_One-Dimensional_Kinematics/2.03%3A_Vectors%2C_Scalars%2C_and_Coordinate_SystemsA vector is any quantity that has magnitude and direction. A scalar is any quantity that has magnitude but no direction. Displacement and velocity are vectors, whereas distance and speed are scalars. ...A vector is any quantity that has magnitude and direction. A scalar is any quantity that has magnitude but no direction. Displacement and velocity are vectors, whereas distance and speed are scalars. In one-dimensional motion, direction is specified by a plus or minus sign to signify left or right, up or down, and the like.
- https://phys.libretexts.org/Learning_Objects/A_Physics_Formulary/zz%3A_Back_Matter/10%3A_Index
- https://phys.libretexts.org/Courses/Tuskegee_University/Algebra_Based_Physics_I/04%3A_Dynamics-_Force_and_Newton's_Laws_of_Motion/4.02%3A_Development_of_Force_ConceptFigure \(\PageIndex{2}\):The force exerted by a stretched spring can be used as a standard unit of force. (a) This spring has a length x when undistorted. (b) When stretched a distance \( \Delta x \) ...Figure \(\PageIndex{2}\):The force exerted by a stretched spring can be used as a standard unit of force. (a) This spring has a length x when undistorted. (b) When stretched a distance \( \Delta x \) the spring exerts a restoring force, \(F_{restore} \) which is reproducible. (c) A spring scale is one device that uses a spring to measure force.
- https://phys.libretexts.org/Courses/Tuskegee_University/Algebra_Based_Physics_I/03%3A_Two-Dimensional_Kinematics/3.04%3A__Vector_Addition_and_Subtraction-_Analytical_MethodsAnalytical methods of vector addition and subtraction employ geometry and simple trigonometry rather than the ruler and protractor of graphical methods. Part of the graphical technique is retained, be...Analytical methods of vector addition and subtraction employ geometry and simple trigonometry rather than the ruler and protractor of graphical methods. Part of the graphical technique is retained, because vectors are still represented by arrows for easy visualization. However, analytical methods are more concise, accurate, and precise than graphical methods, which are limited by the accuracy with which a drawing can be made.
- https://phys.libretexts.org/Courses/Tuskegee_University/Algebra_Based_Physics_I/05%3A_Uniform_Circular_Motion_and_Gravitation/5.05%3A_Fictitious_Forces_and_Non-inertial_Frames_-_The_Coriolis_ForceWhat do taking off in a jet airplane, turning a corner in a car, riding a merry-go-round, and the circular motion of a tropical cyclone have in common? Each exhibits fictitious forces—unreal forces th...What do taking off in a jet airplane, turning a corner in a car, riding a merry-go-round, and the circular motion of a tropical cyclone have in common? Each exhibits fictitious forces—unreal forces that arise from motion and may seem real, because the observer’s frame of reference is accelerating or rotating.
- https://phys.libretexts.org/Courses/Tuskegee_University/Algebra_Based_Physics_I/07%3A_Linear_Momentum_and_Collisions/7.02%3A_Linear_Momentum_and_ForceThe scientific definition of linear momentum is consistent with most people’s intuitive understanding of momentum: a large, fast-moving object has greater momentum than a smaller, slower object. Linea...The scientific definition of linear momentum is consistent with most people’s intuitive understanding of momentum: a large, fast-moving object has greater momentum than a smaller, slower object. Linear momentum is defined as the product of a system’s mass multiplied by its velocity. Momentum is directly proportional to the object’s mass and also its velocity. Thus the greater an object’s mass or the greater its velocity, the greater its momentum.
- https://phys.libretexts.org/Courses/Tuskegee_University/Algebra_Based_Physics_I/03%3A_Two-Dimensional_Kinematics/3.03%3A_Vector_Addition_and_Subtraction-_Graphical_MethodsA vector is a quantity that has magnitude and direction. Displacement, velocity, acceleration, and force, for example, are all vectors. In one-dimensional, or straight-line, motion, the direction of a...A vector is a quantity that has magnitude and direction. Displacement, velocity, acceleration, and force, for example, are all vectors. In one-dimensional, or straight-line, motion, the direction of a vector can be given simply by a plus or minus sign. In two dimensions (2-d), however, we specify the direction of a vector relative to some reference frame (i.e., coordinate system), using an arrow having length proportional to the vector’s magnitude and pointing in the direction of the vector.
- https://phys.libretexts.org/Courses/Gettysburg_College/Gettysburg_College_Physics_for_Physics_Majors/08%3A_C8)_Conservation_of_Energy-_Kinetic_and_Gravitational/8.E%3A_Potential_Energy_and_Conservation_of_Energy_(Exercises)Assume in this problem that air drag is negligible. (a) What is the kinetic energy of the ball as it leaves the hand? (b) What is the change in the gravitational potential energy of the ball during th...Assume in this problem that air drag is negligible. (a) What is the kinetic energy of the ball as it leaves the hand? (b) What is the change in the gravitational potential energy of the ball during the rise to its peak? (c) If the gravitational potential energy is taken to be zero at the point where it leaves your hand, what is the gravitational potential energy when it reaches the maximum height? (d) What if the gravitational potential energy is taken to be zero at the maximum height the ball …
- https://phys.libretexts.org/Courses/Gettysburg_College/Gettysburg_College_Physics_for_Physics_Majors/11%3A_C11)_Rotational_Energy/11.E%3A_Fixed-Axis_Rotation_Introduction_(Exercises)An ultracentrifuge accelerates from rest to 100,000 rpm in 2.00 min. (a) What is the average angular acceleration in rad/s 2 ? (b) What is the tangential acceleration of a point 9.50 cm from the axis ...An ultracentrifuge accelerates from rest to 100,000 rpm in 2.00 min. (a) What is the average angular acceleration in rad/s 2 ? (b) What is the tangential acceleration of a point 9.50 cm from the axis of rotation? (c) What is the centripetal acceleration in m/s 2 and multiples of g of this point at full rpm? (d) What is the total distance traveled by a point 9.5 cm from the axis of rotation of the ultracentrifuge?
