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A 10 m platform diver during his diving can increase his rotation rate from an initial rate of 1.1 rev/s to a maximum of 2.8 rev/s. If his initial moment of inertia was 12 kg ·m2, what is his moment of inertia at his maximum rotation rate?
A velodrome track is banked so that a bicycle traveling at 43.5 km/h will have no tendency to slip to either side when traveling on the path that has a radius of curvature of 59.0 m
A child throws a ball with an initial speed of 8:00m/s at an angle of 40 degrees above the horizontal, what is the magnitude of the ball's velocity just before it hits the ground
a piano turner hears one beat every 1.1 second when trying to adjust two strings, How far off in frequency is the other string
a block of mass M hangs at rest. The rope that is fastened to the wall is horizontal and has a tension off 52 N. what is the angle theta
To stretch a relaxed biceps muscle 2.30cm requires a force of 25 N. Find the Young's modulus for muscle tissue assume it to be a uniform cylinder of length 0.24 m and cross-sectional area 51 cm2.
A charge of -3.9 micro-coulombs is launched from the positive plate of a large capacitor to the negative plate.
A very long, thin straight line of charge has a constant charge density of 20pC/cm. How far does the electron go before it comes back
A laser has a 200-W, 1.0 mm^2 cross-sectional area beam. find the amplitude of the electric and magnetic fields
In the typical X-ray lamp. The electrons are accelearated in the potential difference of 10000V before hitting the water cooled electrode. Find the shortest wavelength of X-rays
assume the coefficient of kinetic friction between m_{rm A} and the plane in the figure is mu_k = 0.15, and that m_{rm{A}} = m_{rm{B}} = 2.7{rm{ kg}}. What smallest value of mu _{rm{k}} will keep the system from accelerating.
A dc motor is connected to a constant emf of 15.6 V. The resistance of its windings is 2.0 ohms. What is the back emf induced in the windings at normal speed
You are driving north on 107th Avenue at a speed of 32.6 mph. At what frequency do you year the siren
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