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A cube of ice is taken from the freezer at -8.7 C and placed in a 111 g aluminum calorimeter filled with 315 g of water at room temperature of 20.0 C. The final situation is observed to be all water at 15 C. What was the mass of the ice cube? When I was done with the calculations I got 18.311g but that is not correct.
A 630-Hz sound travels through pure hydrogen. What is the speed of sound in hydrogen
A race car can be slowed with a steady acceleration of -11 m/s2 if the car is going 55m/s how many meters would it travel before it stops.
A car traveling at 16.00 m/s runs out of gas while traveling up a 19 degree slope. How far up the hill will it coast before starting to roll back down.
A large wooden turntable in the shape of a flat disk has a radius of 2.25m and a total mass of 135kg, Find the angular speed of the turntable after the parachutist lands
To increase the resolving power of a microscope, the object and the objective are immersed in oil (n = 1.54), what is the limiting angle of resolution with the oil
A loudspeaker is placed between two observers who are 120 m apart, along line connecting them. If one observer records a sound level of 52.8 dB and the other records a sound level of 83.5 dB, how far is the speaker from each observer? Enter the longe..
Two converging lenses, each of focal length 14.2 cm, are placed 59.9 cm apart, and an object is placed 26.6 cm in front of the first. determine the magnification of the system
Tries 0/12 Calculate the magnitude of the electric field for the conducting sphere at a point 3.70 cm away from the center of the sphere.
A person exerts a horizontal force of F = 169N in the test apparatus. (h = 0.32m.) Find the horizontal force M that his flexor muscle exerts on his fore arm.
A teeter-totter is made of a 3.200 m long plank with a mass of 60.0 kg, what mass must be placed at the left end so that the teeter-totter is balanced
On a cool morning, when the temperature is 16 deg Celsius, you measure the pressure in your car tires to be 20.0 psi. After driving 40 mi on the freeway, temperature of your tires is 56.0 deg Celsius. What pressure will your tire gauge now show.
A fireman 44 m away from a burning building directs a stream of water from a ground-level fire hose at an angle of 22° above the horizontal. If the speed of stream as it leaves the hose is 40m/s, at what height will stream of water strike the buil..
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