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Consider investing money into two stocks. Suppose they have expected returns next year of 10% and 20% respectively. Assume further that they have standard deviations of 15% and 25% with a correlation of 50%.
What is the expected return on the equal weighted portfolio?
A 0.25-kilogram mass on a vertical spring oscillates at a frequency of 1.0 Hz. If a 0.45-kilogram mass were instead suspended from the same spring, what would be the frequency of oscillation
A jet flying at 104 m/s banks to make a horizontal turn of radius 4000 m. The mass of the jet is 1.5 x 105. Calculate the magnitude of the necessary lift force
A jet plane passes over you at a height of 4990 m and a speed of Mach 1.75. Find the Mach cone angle
A satellite of the earth has a mass of 100 kilogram and is at an altitude of 2.00 x 106 meter. Compute what force does the satellite exert on Earth
Water drips from the nozzle of a shower onto the floor 235 cm below. The drops fall at regular (equal) intervals of time, the first drop striking the floor at the instant the fourth drop begins to fall. Find the location of the third drop as measured..
question1a diffraction grating has 3816 linescm. light that contains all wavelengths between 464 and 636 nm shines on
Describe the arrangment of circuit elements that is called a voltage divider and the relationship among the various potential differences for that arrangement.
Consider a 7.0-kg red block pressed against a wall as shown in the animation (position is in meters and time is in seconds), determine the force of the hand that acts on the block
Middle schoolers are having a rocket competition; one of their rockets launches and ascends directly upward with a constant vertical acceleration of 19.5 m/s2 for 1.0 min. What is the maximum altitude reached
A particle is located at the vector position r=(4.00i+6.00j)mand a force exerted on it is given by F=(3.00i+2.00j)N. Determine the position vector for such a point.
Suppose a particle with mass m is released from rest in a uniform gravity g, write down the relativistic equation of motion and find an expression that gives the relationship between velocity and time
a 500 n man is riding in an elevator. at a certain instant his feet push against the floor with a force greater than
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