1 | | The prefixes which are abbreviated p, n, and G represent which of the following? | 10^-12, 10^-9, and 10^9 |
1 | | In mechanics, physicists use three basic quantities to derive additional quantities. Mass is one of the three quantities. What are the other two? | length and time |
1 | | A triangle has sides of length 7.0 cm and 25 cm. If the triangle is a right triangle, which of the following could be the length of the third side?
options
18cm, 24cm, 27cm, 32cm, 20cm | 24 cm |
1 | | Multiplying a 2 significant figure number by a 3 significant figure number and then dividing the product by a six significant figure number yields a number with how many significant figures? | 2 |
1 | | Which formula is dimensionally consistent with an expression yielding a value for velocity? (a is acceleration, x is distance, and t is time) | at |
1 | | A cement truck can pour 20 cubic yards of cement per hour. Express this in ft^3/min. | 9 ft^3/min |
1 | | The speed of a boat is often given in knots. If a speed of 5 knots were expressed in the SI system of units, the units would be: | m/s |
1 | | Suppose an equation relating position, x, to time, t, is given by x = b t^3 + c t^4, where b and c are constants. The dimensions of b and c are respectively: | L/T^3, L/T^4. |
1 | | The basic function of an automobile's carburetor is to atomize the gasoline and mix it with air to promote rapid combustion. Assume that 30 cm3 of gasoline is atomized into N spherical droplets. Each droplet has a radius of 2.0*10^-5 m. Find the total surface area of these N spherical droplets. | 45000 cm^2 |
1 | | A train slowly climbs a 500-m mountain track which is at an angle of 10.0° with respect to the horizontal. How much altitude does it gain? | 86.8 m |
1 | | If point A is located at coordinates (5, 3) and point B is located at coordinates (-3, 9), what is the distance from A to B if the units of the coordinated system are meters? | 10m |
1 | | For which of the values below is x > x^3?
1) x = -1.5
2) x = 0
3) x = 1.0
4) x = 1.5
5) x = 2.5 | x = -1.5 |
1 | | Areas always have dimensions ____ while volumes always have dimensions ____. | L^2, L^3 |
1 | | Which point is nearest the x axis?
1) (-3, 4)
2) (4, 5)
3) (-5, 3)
4) (5, -2)
5) (-4, 4) | (5, -2) |
1 | | An apartment has 1100 ft^2 of floor space. What is the approximate volume of the apartment? | 10^4 ft^3 |