Calculate the force exerted by the man
A 295 kg piano slides 4.2 m down a 30° incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. The effective coefficient of kinetic friction is 0.40.
Calculate the force exerted by the man.
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Four homozygous recessive mutant lines of Drosophila showed abnormal leg coordination, which made their walking highly erratic. These lines were intercrossed; the phenotypes of the F1 flies are shown in the following grid, in which "+" repres
A spring is standing upright on a table with its bottom end fastened to the table. A block is dropped from a height 3.0 cm above the top of the spring. The block sticks to the top end of the spring and then oscillates with an amplitude of 10 cm. W
How much heat must be added to the water to raise its temperature from 20.0C to 80.0C? B) How much time is required?
Assume that you are to design a TDM carrier, say DS-489, to support 30 voice channels using 6 bit samples and a structure similar to DS-1. Determine the required bit rate. Assume that the sampling rate is 8000 samples per second and that on
A 295 kg piano slides 4.2 m down a 30° incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. The effective coefficient of kinetic friction is 0.40. Calculate the force exerted by the man.
A horse canters away from its trainer in a straight line, moving 120 m away in 15.0 s. It then turns abruptly and gallops halfway back in 5.0 s.
Choose one of the means of providing social support listed below. Describe how this type of social support is important and how it might help an ill person. Read the post of a student who chose a different type of social support than yours. Which
Bernoulli"s principle provides lift to airplane wings and soaring birds. You might want to ask about this one in class. How does Bernoullis principle apply to the flight of airplanes?
How would a dissonance theorist explain the paradoxical finding that we are apt to like our adversaries after doing them a favor, and to dislike our friends after treating them badly? Provide a concrete example.
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