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A 300 g mass of mercury at a temperature of 250°C is poured into a container filled with 500 g of water at 20°C. The container is a copper cup of mass 70 g which is also initially at 20°C. What is the final temperature of the system?
Two vectors are given by A vector = -5 i + 3 j and B vector =4 i +4 j. Determine the angle between given vectors
Jack and John are standing 6m apart from each other playing soccer. Jack kicks the ball to John and John kicks it back immediately. What is the speed of the ball when it's kicked back to Jack
A flat go-kart track consists of two straightways 100 m long with semicircular ends which have a radius of 25.0 m. Determine the magnitude of the total acceleration
The driver of a 1485 kg car is driving along a street at 25.0 mph. Another driver, coming from directly behind, with what combined speed do they begin to skid
question1a lunar landing craft approaches the moonrsquos surface. suppose that one-third of itsnbspweight is fuel that
An 7.60-cm-diameter, 310 sphere is released from rest at the top of a 1.70-m-long, 20.0 incline. What is the sphere's angular velocity at the bottom of the incline
An autoclave is a device used to sterilize laboratoryinstruments. It is essentially a high-pressure steam boiler andoperates on the same principle as a pressure cooker. What is the temperature of the steam
Two parallel wires separated by 4.2 cm repel each other with a force per unit length of 1.9 x 10-4 Nm. The current in one wire is 4.9 A. Find the current in the other wire
A curve of radius 60m is banked for a design speed of 100km/h.If the coefficient of static friction is .30 (wet pavement), at what range of speeds can a car safelymake the curve.
A wave on a string is described by D(x,t)=(2.00cm)sin[(12.57rad/m)x?(638rad/s)t],where x is in m and t is in s. The linear density of the string is 5.00g/m, What is the maximum speed of a point on the string
An RLC circuit is used to tune a radio into an FM stationbroadcasting at 88.5 MHz. What inductance should be present in the circuit
A tortoise and a hare are having a race on a straight track. The tortoise cannot go very fast, but he is steady and consistent with a constant speed of 0.50 m/s. how long will it take for the hare to catch the tortoise
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