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What properties do forces have that allow us to classify them as vectors?  Evaluate the following statements. Select the grouping that is correct.  T is for true statements and false statements are indicated with an F.   (a) Forces have direction(b) Forces have volume(c) Forces have magnitude(d) Forces are scalar

Select the option that provides the correct coefficients to balance the equation. ____ Na3PO4 + ____ CaCl2 –> ____ NaCl + ____ Ca3(PO4)2

An aluminum block (mass = 753 g) is pulled horizontally across a flat steel surface. The graph shows the average force applied to the block in order to start moving it, and it shows the average applied force needed to move the block at a slow steady speed. Based upon the graph, the static frictional force is approximately…

How many atoms of oxygen are found in the reactants of the following? 6CO2 + 6H2O   C6H12O6 + 6O2

Again, using the diagram of the skateboarder, assume that she has a mass of 50.0-kg. Assuming also that she starts at the top of the ramp at 6.0-m, what is her kinetic energy at point D?

An investor chooses to invest 75% of her wealth in a risky asset P with an expected rate of return of 17% and a standard deviation of 32%, and she puts 25% in a riskless Treasury bill that pays 2%. Let C denote this complete portfolio.   (a) Compute the expected rate of return and standard deviation of portfolio C. (6 points) (b) Draw the Capital Allocation Line (CAL) for this investor. Clearly label the points corresponding to the T-bill, asset P and portfolio C. (5 points) (c) What is the slope of the Capital Allocation Line (CAL)? (5 points) (d) Find the risk aversion level of the investor given her complete portfolio decision above. (5 points)

A cart moves along a frictionless surface while attached to a rope that can be pulled. The graph shows that during the time interval 3s – 8s, the cart is moving at an average speed of…

In the following chemical equation, what does the expression ▵H = 181 kJ indicate?N2 (g) + O2(g) ⇄  2NO(g) ▵H = 181 kJ

A sinusoidal transverse wave has a wavelength of 2.80 m. It takes 0.10 s for a portion of the string at a position x to move from a maximum position of y=0.03 m  to the equilibrium position of y=0.  Calculate the speed of the wave.

Which of the following contains the correct products and is the balanced reaction for chemical reaction? C2H6 + O2 →