Volume and density of the piece of metal based problem
An object has a weight of 0.874 N. It is suspended from a scale, which reads 0.704 N when the piece is submerged in water. What are the volume and density of the piece of metal?
Find volume in m3.
Find density in kg/m3.
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Find (a) the work output of the heat engine, (b) the efficiency of the heat engine, (c) the temperature of the low temperature reservoir for the refrigerator, in degrees Celsius, and (d) the COP of the refrigerator.
Calculate the mass of the counterweight. Assume that Peter starts from rest. Calculate the tension in the line supporting the actor.
A mixture of He,Ar, Xe and has a total pressure of 2.60 atm. The partial pressure of He is 0.350 atm, and the partial pressure of Ar is 0.200 atm. What is the partial pressure of Xe?
Assume every bus in Gainesville follows an exponential distribution with a mean of 7.5 minutes. From a bus stop, we randomly survey 100 different buses (i.e., not of the same line).
A certain zoo is know to collect "unusual" animals from different animal groups. One ostrich specimen in the zoo weighs 229 kg and one elephant specimen weighs 8150 kg.
The near point for your myopic uncle is 10 cm. Your own vision is normal; that is, your near point is 25 cm. Suppose you and your uncle hold dimes (which are 1.7 cm in diameter) at your respective points. a. what is the dime's angular size, in rad
The number of patients arriving at a medical emergency can be modelled as poisson process with a mean of 25 arrivals per hour. Determine the probability that there are no patients in an interval of 6min.
An explorer is caught in a whiteout (in which the snowfall is so thick that the ground cannot be distinguished from the sky) while returning to base camp.
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