How does average speed relate to the distance covered and the time taken for travel? * The average speed is way different than the distance, but a little similar to time. For example: the time was 2.53 and the speed was 2.42 2. Should the recorded average speed represent the maximum speed for each event? * It depends, if the object was traveling at a constant speed, then yes.
11. The velocity of a body of mass m changes by an amount ∆v in a time ∆t. The impulse given to the body is equal to A. B. C. D. m∆t . ∆v .
We know that as the mass doubles, the KE doubles, but as the speed doubles, the KE quadruples [2]. This becomes important when analysing this formula: KE = GPE/0.5mv2 = mgh [3] This shows the mathematical relationship between KE and GPE. This formula is in effect as the “car” is falling or rising a hill. The formula shows, that the KE gained, is equal to the GPE lost, and vice versa. To analyse this further, we can observe Newton’s first law of motion.
The distance between the forces is given by the Coulombs law through the use of the formula F=kq1q2/r2.0.1newtons = 8.99*109*3.2*10-6*7.7*10-7/r2 R= 555.78 Answer to question 3 • Potential difference between the two plates is equal to velocity which is equal to 6.0*106m/s • Force = mass *acceleration = 1.4*10-13*6.0*106 = -8254 nektons The speed of the particles are computed by the formula V=ED. This is equal to 8.5*10-6*0.15. This is equal to 84.1 Answer to question 4 Voltage = current *resistance. This implies that in this case while V is 5.0 and resistance is 1.0*103, current will be equal to 5/1.0*103, = 500 amps B the direction of the conventional current provides the electric charge movement from the positive side of the battery to its negative side as in indicated in the diagram below Answer to question 5 • This section focuses on the equivalent resistance of a circuit. The equivalent resistance will be equal to (5.0*102+1.00*103)2.
As the name implies, both modems must be synchronized for this method of communication to be successful. Another difference is that synchronous modems were designed for use over regular telephone lines, whereas asynchronous modems were not and depend largely on leased lines environments with dedicated circuits (Dean, 2003). 2. Analog and digital Analog and digital refer to specific signal types, which is an electronic current that carries information. An analog signal refers to an electromagnetic signal that varies in strength as speed over the course of its transmission.
sample test questions Multiple Choice Knowledge /10 Identify the choice that best completes the statement or answers the question. ____ 1. Which position-time graph represents an object that is moving westward at a constant velocity? a.|| b.|| c.|| d.|| ____ 2. Which position-time graph represents a stationary object at a location to the west of the reference position?
Speed of sound in air using Resonance Purpose: In this laboratory investigation, we will determine speed of sound using the formula: speed = frequency times wavelength. Equation 1 After making several measurements of the speed of sound, we will compare our average experiment result from this lab to the speed of sound predicted by the equation vsound=330 m/s+.6m/s (T).Equation 2 Theory: Congitudinal waves are waves which the motion of the individual particles of the medium is in a direction that is parallel to the direction of energy transport. The result of a longitudinal wave is the creation of compressions and rarefactions within the air. Picture: The speed of sound in air is impacted by the temperature because sound travels by vibrating molecules and passing the energy on to a nearby molecule. Sound travels faster through warm air than cold air because the molecules in warm air vibrate faster.
____________________ ____ 19. Electromagnetic waves carry mechanical energy. _________________________ ____ 20. As the frequency of an electromagnetic wave increases, the speed of the wave increases. _________________________ ____ 21.
We then figured out the average velocity of Walker A and Walker B. Since speed describes only magnitude, how fast the object is moving (scalar), whereas velocity gives both the magnitude and direction (vector) of the object's motion, we know that Walker A’s velocity (Va) = + Sa(walking from 0m to 40m) and Walker B’s velocity (Vb) = - Sb (walking in the opposite direction from 40m to 0m). Walker A Va = +0.87m/s Walker B Vb = -1.62m/s We later calculated the time it would take for walkers A and B to meet each other if they start at the two ends of the measured distance and walk towards each-other using the given formula and their velocities we previously calculated: t = (Xib - Xia) / (Va - Vb) t = change in time (s) Xia= Initial starting point for walker A (m) Xib= Initial starting point for walker B (m) t = Unknown Xia= 0m Xib= 40m Va= +0.87m/s Vb=
The stimulus onset asynchrony (SOA) between the two stimuli was used to compute just noticeable differences (JNDs) in milliseconds. JNDs provide an index of temporal resolution i.e. small JNDs indicate high temporal resolution. The context was manipulated to include both static and dynamic distractors. These distractor events were measured along the vertical and horizontal meridians.