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All the nerve fibres carry information in the form of nerve impulse. Nerve impulse is the sum total of physical and chemical disturbances created by a stimulus (electrical, chemical or mechanical) in a neuron or nerve fibre which result in the movement of a wave along the nerve fibre. The nerve fibre or axon is like a cylinder, the interior of. After we finish taking notes on impulse, I give each student a sheet of blank, white, 8.5" x 11" paper and explain the directions for concept mapping. My students have all done concept maps before in this class, so I provide students a simple model on the front board.. The term Ft is called the impulse and is equal to the change in momentum. Note: the unit of impulse, Ns will be equivalent to kg m s-1. The concept of impulse is useful in situations where the force is not constant and acts for a very short period of time. One example of this is when a golf ball is hit by a club. During. The kinetic energy of the car is unchanged after the collision. The mass of the car is 0.80 kg. (i) Determine the initial momentum of the car. (ii) Estimate the average acceleration of the car before it rebounds. (iii) On the axes, draw a graph to show how the momentum of the car varies during the impact. At the nuclear level, the magnitudes of energy are very small. The energy at nuclear level is usually measured in MeV, where 1 MeV= 1.6×10 -13 J; the masses are measured in unified atomic mass unit (u) where 1u = 1.67 × 10 -27 kg. (a) Show that the energy equivalent of 1 u is 931.5 MeV. If we consider the force to be a constant force, then as a definition we state that impulse is the product of the force applied and the time duration. Impulse (J) = F .Δt (4) Incorporating expression from equations 3 in equation 4 above we can write, Impulse (J) = F .Δt = Δp i.e., Impulse (J) = Change in momentum.

Question 11.11 The coefficient of volume expansion of glycerin is 49 × 10-5 K-1. What is the fractional change in its density for a 30 °C rise in temperature ? Question 11.12 A 10 kW drilling machine is used to drill a bore in a small aluminium block of mass 8.0 kg. How much is the rise in temperature of the block in 2.5 minutes, assuming. Makes careless mistakes and is inattentive to detail in work, school, or with other activities. Has trouble paying attention during tasks or while playing. Doesn't seem to be paying attention when someone is talking directly to him or her. Doesn't follow through with homework, chores, or jobs and is easily sidetracked. Class-11-science » Physics. Laws Of Motion. define the terms momentum and impulse. state and explain the law of conservation of linear momentum. give examples. Share with your friends. Share 0. impulse-the total effect of force is called impulse.it is the product of force and time for which force act. momentum- of an object is the product of. The impulsive force helps the ball to travel long distances in a short duration of time. 2. Golf. When the golf ball is hit by the player, it receives a sudden change in momentum. This leads to a short reaction time and the development of a large impulsive force. This helps the ball to advance in the forward direction swiftly and also helps the. Start studying 4.3.1 Define the Terms Force, Speed, Velocity, Displacement, Acceleration, Momentum, and Impulse. Learn vocabulary, terms, and more with flashcards. Sep 04, 2021 · Figure 11.4. 4: An action potential graph of membrane potential over time. A neuron must reach a certain threshold in order to begin the depolarization step of reaching the action potential. The figure also shows the change in potential during the repolarization and refractory periods of the axon. The change in membrane potential results in the ....

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