Roll down an incline starting at the same time
A coin and a ring, each with the same mass, roll down an incline starting at the same time. Which one will reach the bottom first?
Choose one answer.
a. Neither.b. The ring.c. Same.d. The coin.
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If he shot a dart at an antelope at rest 50 m away, and the antelope instantly began to accelerate at a constant rate away from the dart, running out of range of the dart just in time: a) Find the minimum acceleration of the antelope;
An experiment consists of choosing a subset from a fixed number of objects where the arrangement/order of the chosen objects is not important. Determine the size of the sample space when you choose the following:
The appropriate pumps are used for the water leaving the condenser and the feed water heater. Calculate the cycle thermal efficiency and the net work per kg of steam.
What is the expected number of cars at the car wash?
Develop the linear programming model and determine how many salespersons should be contracted and how should their off-days be allocated.
A steam power plant utilizing the Rankine cycle has the following particulars. Compare the efficiency of the plant with that of the corresponding Carnot cycle.
What is the magnitude of the frictional force (in newtons) on the block if the block is at rest and the surface is horizontal?
If only one extraction from the turbine occurs at 10 bar, what percentage of the total flow to the turbine is ideally extracted? Calculate the amount by which the turbine work is changed.
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