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Problem 1:
A man can row his canoe at a constant rate of 5 miles per hour in still water. He rows upstream for 15 minutes and then rows downstream, returning to his starting point in another 12 minutes. What is the current in miles per hour?
Problem 2:
a). A piggy bank of Nicole contains 40 coins in nickels, dimes and quarters. If there are 6$ in the bank and twice as many dimes as nickels, how many quarters are in the piggy bank?
b). The sume of two numbers is 35 and their product is 15. Find the sume of their reciprocals.
Problem 3:
A rectangular garden is to be twice as long as it is wide and is to be included by a fence. The area, A, of the garden will be a function of the amount of fence used. Which of the following is the correct function for this condition?
A. A = P2/36
B. A = P2/18
C. A = P2/12
D. A = P2/6
Problem 4:
What is the coefficient of the starting, friction if the force require move a mass of 100 kg over a rough surface is around 460 N?
A. 0.35B. 0.47C. 0.52D. 0.59
The magnetic field produced by the solenoid in a magnetic resonance imaging (MRI) system designed for measurements on whole human bodies has a field strength of 7.33 T, and the current in the solenoid is 2.20 x 102 A. What is the number of turns per ..
A tuning fork is set into vibration above a vertical open tube filled with water, What is the frequency of the tuning fork
These questions are to be answered with a short paragraph. You will be graded on the physics content of your answer as well as on its structure and conciseness.
a luge and its rider with a total mass of 86 kg emerge from a downhill track onto a horizontal straight track with an
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A plane leaves St.john's and heads due west for deer lakeat a velocity of 450km/h. At what speed and angle must the plane flying order to make it to deer lake
A conducting sphere that carries a total charge of +11 µC is placed at the center of a conducting spherical shell that also carries a total charge of +11 µC, Determine the charge on the inner surface of the shell
On a general sine curve that you see in fig., Show a properly located y axis for the graph of y(x) at t= .25 sec. Calculate and label the y intercept and three x intercepts.
The snow is level at the bottom of the slope, and the coefficient of friction is unchanged. Determine how far Kim moves along the flat stretch of snow before coming to rest.
Assuming that the inner surface of the left ventricle has an area of 83cm2 and the maximum pressure in the blood is 120 mm-Hg, estimate the force exerted by that ventricle at maximum pressure
A 4.00-g bullet is moving horizontally with a velocity of +355 m/s, where + sign indicates that it is moving to the right. The bullet is approching two blocks resting on a horzizonta frictionless surface.
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