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Four people are pushing a body with forces:
310N in the direction 045
280N in the direction 135
400N in the direction 80. Calculate sum of vertical and sum of horizontal component respectively.?
What is the speed of sound (in m/s) in carbon dioxide at the normal boiling temperature of water?
If an object is moving at 2 m/s towards a porcelain vase, do you
think it will have enough momentum to break the vase? Explain.
Explain how the classical density of states is used to calculate the partition function for systems whose energy levels form a continuum.
Find the acceleration of a 1500.kg car, driven by 2200.N against 450.N of friction
A 10Mg truck rolling at a constant speed of 30 kph along a horizontal rail comes to an incline of slope sin 0.1. Calculate how far it will coil up the slope before coming to a halt, (a) ignoring all resistive forces, and (b) assuming the rolling vesistance is 5% of the normal reaction of the truck
5kg weight who mation is constrained by vertical guides is dropped from reit 0.5 m onto a vertically aligned spring whose stiffness is 10 Nm How fast is the weight travelling when the spring has been compressed by 50 mm
A cube of mass 10 kg is at rest on a horizontal surface when it is subjected to a horizontal force P that varies with time t as P = 20t. If the static and kinetic coefficients of friction are both 0.4, calculate the velocity of the cube after 5 s.
A force of P N acting on a body of 5 kg travelling with a velocity of 5 ms increases its velocity to 10 ms. If the force acts in the direction of motion for a period of 5 s, what is the value of P?
A 500 Mg fug is Towing a 1000 Mg barge at a steady speed of 3 ms when the towline, which is horizontal, is winched in at a rate of 0.5 ms. What is the tug's speed during this operation!
