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You are given the following pairs of scores on X (number of hours studied) and Y (quiz score).
a. Find the linear regression model for predicting Y from X.
b. Use the prediction model obtained to predict the value of Y for a new person who has a value of 6 for X.
Use the work-energy theorem to calculate the frictional force F and write down the expression for the angular acceleration with frictional force calculated in terms of m, L, h, and g.
If electrons are accelerated from rest in an electron gun by sending them through a potential difference of 11.0 kV
A luge (sled) and its rider, with a total mass of 85 kg, emerge from a downhill track onto a horizontal straight track with an initial speed of 37 m/s, What distance do they travel while decelerating
A 1.10 kg hollowball with a radius of 0.134 m, filled with air, is released fromrest at depth of 2.16 m in a pool of water. What is the work done by the net vertical force on the ball as the ball moves from the bottom of thepool to the surface
In compressing the spring in a toy dart gun, 0.2 Joule of work is done. When the gun is fired, the spring gives its potential energy to a dart with a mass of 0.09 kilogram. Find the dart kinetic energy as it leaves the gun
Fission of a uranium nucleus (containing 92 protons) produces a barium nucleus (56 protons) and a krypton nucleus (36 protons). estimate the size of the uranium nucleus
A 170 km long high-voltage transmissionline 2.0 cm in diameter carries a steady current of 950 A. If the conductor is copper with a free chargedensity of 8.1*1028electrons per cubic meter, how many years does it take one electronto travel the full ..
A fan rotating at 20 rpm slows down by a constant acceleration and comes to a stop in a time of 4.7 s. What is its angular displacement in this time? Give your answer in radians, do not enter units.
A small conductive rod of length 1.4 m moves with a constant velocity v=11 m/s in a direction parallel to a long wire carrying a current of 34 A. Calculate the electric potential induced across the rod
two masses m1 and m2 are connected via a massless unstrecthable string over a massless pulley. mass m272n rests on the
Three resistors of 40 Ω, 60 Ω, and 120 Ω are connected in parallel, and this parallel group is connected in series with 15 Ω in series with 25 Ω. Compute the potential drop across the parallel group
when you place a saltshaker 30 cm from your magnifying glass a real image forms 30 cm from the lens on the opposite
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