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A car accelerates along a road which force actually moves the car?A block of mass 'm' slips on a rough horizontal table under the action of a horizontal force applied to it . the coefficient of friction between the block and the the table is 'u'. the table does not move on the floor .find the total friction force A boy is setting in front seat of bus moving with 30 miles per hour he throw a ball with a speed of 30 miles per hour. With what speed will it move?A charged insulator can be discharged by passing it just above a flame.explain howA common pair of pliers has a place for cutting wires, bolts, or nails. Why is it so important that this cutter be located very near the plier's pivot?A Find the velocity (magnitude and direction of the second ball)b.Was the collision elastic or inelastic?A mass M IS MOVING with a onstant velocity parallel to x axis . itts angular momentum with respect to origin is.....A part of the china sea is 5968 fathoms deep. What is the depth in meters if one fathom is equivalent to 6 feet?A satellite is always falling freely - how come it is always at the same height then?A ship sails south a distance of 320 miles, then turns and sails northwest 190 miles. find the distance from home port and the direction in which the ship must sail to return.A weight is connected to a spring that is suspended vertically from the ceiling.About one dimentional motionAverage speedBaseball QuestionBLACK BOXCalculate the acceleration due to gravity, g.Calculate the speed of a car moving a distance of 150km in 3 hours.Can a toroid be treated apoleless magnet?if,then howCan an object have a speed of zero and an acceleration of zero?Can energy be converted into mass?Can we detect dark matter if it doesn't interact?Cleveland and Chicago are 340 miles apart by train. Train A leaves Cleveland going west to Chicago at 1:00 PM, traveling at 60 mph. Train B leaves Chicago going east to Cleveland at 2:00 PM, going 45 mph. At what time do the two trains meet? How far are tCompare and contrast progressive and stationary waves? Conservation of Energy ?DiffractionDo dark matter and dark energy exist?Do photons have mass?Do wormholes really exist?Does a moving object have impulse?Does time have a beginning and an end?EnergyEvidence indicates that the present expansion of the universe is slowing down?Explain uniform acceleration?Find the initial speed of the bullet?Firework sparks hurt relative to tea?Friction and velocityGasses.Give an example of motion for which both acceleration and velocity are negative? How can we convert energy into mass?How does an aeroplane stay flying in the sky?How does gravity work?How does nuclear energy work?How far can an object be tipped before it topples over?How much matter is visible?How much time How small is pluto?How to calculate the distantIf a vehicle is pushed up a slope of 8% which is applying a downwards force of 800N, what will be the actual force used to push the vehicle up the slope?If both lead and rubber bullet are of same momentum then which one is effective to knock down a bear If you kick a stone in 1/100 seconds and football in 1/10 seconds which hurts you more and why?If you step off a high board and drop to the water below, you plunge into the water without injury. On the other hand, if you were to drop the same distance onto solid ground, you might break a leg. What is the difference in terms of Newton's Laws?In every derivation of the Schwarzschild solution I found, at some point the "weak-field" approximation is made. Nevertheless, the same solution is used to describe black holes, down to r=0. Why is this?In thrill machine rides at amusement parks, there can be an acceleration of 3gram or more. But without head rests, acceleration like this would not be save. Think Why not?Is a projectile flying through the air accelerating? if yes, why?Is cosmology a science, religion or philosophy?Is gravitational potential energy an absolute energy?Is it possible to travel faster than the speed of light?Is there a theoretical maximum speed?It is easy to measure the lenght of a pole or the diameter of a ball bearing but how can one measure vast distances such as the depth of deep ocean or the diameter of the earth?It is possible to enlarge a wormhole?Kinetic energyLaserLight of wavelength 6000 A in air enters a medium ofrefractive index 1.5.What will be the frequency in the medium?Light ReflectionsLinear motionMagnetsMassMomentumMomentumOptics total internal reflectionPhysicsPhysicsPhysicsPhysicsPhysics equationProjectilesQ1. (a) A rabbit runs across a parking lounge with coordinates (metres) as a function of time as: x= -0.3t2+7t+28 and y=0.2t2 -9t+30. Find the rabbit’s position vector in unit vector notation and in magnitude angle notation at time t=15s. (b) A bob tiScaler and vactorSeries solutionSpeed of lightStand with onearm and the sideof the one foot pressed against a wall. can you raise the other leg side ways?if not,than why?State what happens to the force on the wire when the size of the current through the wire is increasedSuppose you are standing on an icy surface(very little friction) and a heavy object and light object of the same size and shape are also on the ice. How could you tell which object is heavier without picking them up?The ratios of momentumTrue or falseTwo balls are sitting on identical compressed springs that are oriented vertically to fire the balls straight up into the air. The balls are identical in all ways except that one is made of steel and the other is made of plastic.UnitsUnits conversionWat is average velocity and average speed?Water is projected from two rubber pipes at the same speed from one at angle of 30 degree and from the other at 60 degree. why are the ranges equal?Water level comparisonWe are told that the speed of light is finite. Why? What is it that prevents light speed being variable? Isn't there some evidence to suggest that it has varied over the eons?What are a leptons?What are colours, in the context of particle physics?What are MACHOs?What are the alternatives to dark matter and dark energy?What are the problems with the Big Bang?What causes the northern lights?What does WIMP stand for?What evidence is there for special relativity?
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