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A person in a kayak starts paddling, and it accelerates from 0 to 0.8 miles/hour in a distance of 0.8 km. If the combined mass of the person and the kayak is 80 kg, what is the magnitude of the net force acting on the kayak?
A mass M of a liquid at a temperature T1 is mixed with an equal mass of the same liquid at a temperature of T2. The system is thermally insulated. If C is themperature-independent specific heat of that liquid
A mass-spring system oscillates with an amplitude of 4.40 cm. If the spring constant is 237 N/m and the mass is 411 g, Determine the maximum speed of the object
what is the speed of the proton in the beam.define the spread in these values.
Suppose you wish to make a solenoid whose self-inductance is 1.5 mH, The inductor is to have a cross-sectional area of 1.7 x 10-3 m2 and a length of 0.046 m
A sphere consists of a solid wooden ball of uniform density 800 and radius 0.20 and is covered with a thin coating of lead foil with area density 20.
A piece of Nichrome wire has a radius of 5.50 10-4 m. It is used in a laboratory to make a heater that uses 3.00 102 W of power, estimate the necessary length of wire
A 0.33-m-long violin string has a mass of 0.89 g. The peg exerts a 45 N force on it. Determine the lowest frequency sound produced by the vibrating sting
A 3.40 g coin is positioned 16.0 cm from the center of a turntable. The coin has static and kinetic coefficients of friction with the turntable surface of mu_s = 0.720 and mu_k = 0.480. What is maximum angular velocity with which the turntable can sp..
You would like to store 8.6J of energy in the magnetic field of a solenoid. What is the magnitude of the magnetic field inside the solenoid
A 7.80-g bullet moving at 500 m/s penetrates a tree trunk to a depth of 5.40 cm. find the average frictional force that stops the bullet
You throw a ball straight down from an apartment balcony to the ground below. The ball has an initial velocity of 4.95 m/s, Find the height of the balcony
A disk spins with increasing angular velocity. Point Q on the disc is twice as far from the axis of rotation as in point P. Which point has the larger radial acceleration
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