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Identify the action-reaction pairs of forces for the following situations.
a) You step off a curb.
b) You pat your tutor on the back.
c) A wave hits a rocky shore.
At the top of Earth's atmosphere, sunlight has an average intensity of 1380W/m^2 .If the average distance from Earth to the Sun is 1.5*10^11m, at what rate does the Sun radiate energy?
an object is placed 15 cm from first converging lens of focal length 10 cm.a. a second converging lens with focal
A 1.5 kg block is attached to a spring with a spring constant of 2100 N/m. The spring is then stretched a distance of 0.33 cm and the block is released from rest. What would be the strength of the frictional force
Four moles of a monatomic ideal gas expand adiabatically, and its temperature decreases from 300 to 285 K. What is the work done by (or done to) the gas? Comprise the algebraic sign.
A flat observation screen is placed at a distance of 4.5 m from a pair of slits. The separation on the screen between the central bright fringe and the first-order bright fringe is 0.043 m. Determine the slit separation
q1. a bucket filled with water has a mass of 20 kg and is attached to a rope which in turn is wound around a 0.050-m
if the coefficient of kinetic friction between tires and dry pavement is 0.800 what is the shortest distance in which
A tuning fork vibrates at a frequency of 530 Hz. An out-of-tune piano string vibrates at 535 Hz. How much time separates successive beats
A parallel-plate capacitor is made from two plates 12.5 cm on each side and 4.20 mm apart. obtain how much energy will be stored in the capacitor
An airplane goes North with an average speed of 100m/s, What is the plane's velocity relative to the ground
A steel ball (140 gm) is fired at 120 ms-1 toward a nether steel ball (4 kg) on a smooth frictionless surface. Draw a diagram and suppose that the collision is elastic. Determine The momentum of the balls after the collision
The height of lava ejected can be modelled by h=-5t(t-11) where h is height in meters and t is time in seconds since it was ejected. Discover max height
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