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How was thermal energy discovered by joule through which experiment. Give brief
A 2.0 kg ball moving east at 0.5 m/s collides with a 3.0 kg ball moving west at 0.75 m/s. After the collision, the lighter ball moves west at 0.65 m/s. What is the velocity of the larger ball after the collision?
A mass of 15 kg which maybe a point like object, is attached to a rope of length 2.5 m and is being rotated. what is the moment of inertia of the object
In the endothermic process the volume of a gas contracted from 180 ml to 175ml against a constant pressure of 722 during the process 30 cal of heat energy were given off what was the internal energy change for the system in joules
A 15kg box is being pulled with a force of 60N and is sliding with an acceleration of 4 m/s^2. Find the coefficient of kinetic friction.
A 10kg bike is pulling a package box from a frictionless floor. The bike started from rest and speed up to 12 m/s. If the tension on the rope has a limitation of 150N, answer the succeeding questions.What is the acceleration of the bike?
What is the minimum time before the rope breaks?
How does the fundamental frequency of a standing wave on a string vary with string length? What is an experiment I can do to prove a relation between the two. This is for an IB internal assessment topic I chose. Any equations I can use to model the relation as well?
A heat engine takes in 1500 J of heat at 2000 K and rejects 950 J of heat at 1000 K. Find the (a) maximum efficiency of this engine and (b) its actual efficiency.
An object displaces 2.3×10-3 m3 of water when totally immersed into it. What is the buoyant force exerted by the water?
1. An object displaces 2.3×10-3 m3 of water when totally immersed into it. What is the buoyant force exerted by the water?
