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Calculate the change in temperature of an 900mm aluminium bar, that has increased in length to 901.035mm.
α = 25 x 10-6k-1
A boy who is riding a bicycle moves with an initial velocity of 5 m /s. Ten
seconds later, he is moving at 15 m/s. what is his acceleration?
Calculate the change in length of a 100mm aluminium bar that has increased in temperature by 55⁰C.
Take the coefficient of expansion to be 25 x 10-6k-1
100 cm of brass increased by 0.18 cm when its temperature rises by 95°C. What is the linear expansivity of brass?
An iron rod has a length of 70m when the temperature is 30°C. By how much will it expand when the temperature rises to 40°C (Linear expansion of iron rod = 1.2×10^-5 per kelvin)
An iron rod has a length of 70m when the temperature is 30°C. By how much will it expand when the temperature rises to 40°C (Linear expansion of iron rod = 1.2×10^-5 per kelvin)
A stone is thrown horizontally at 20 m/s from the top of a cliff 63 m high. How fast is it moving the instant before it hits the ground?
A crate weighing 490 N is pushed along a surface. If it takes 126 N to get the crate starts to move (a = 0), what is its static friction and coefficient of static friction μs? Solve the unknown and confirm your answer of static friction using the Phet Simulation software. (Use the part of with Acceleration in Phet Simulation)
A metal bar 50cm long at 15°c is heated to 85°c. If it expands by 0.088cm, determine its linear expansivity.
If a school bus moves 1600 meters at an average speed of 12 m/s, how long did the journey take?
