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What is the magnitude of an object's average velocity if an object moves from a point with coordinates x = 2.83 m, y = -4.49 m to a point with coordinates x = 5.26 m, y = -7.18 m in a time interval of 2.60 s?
A 1650 kg cannon, which firesa 75.0 kg shell with a speedof 544 m/s relative to themuzzle, is set at an elevation angle of 39° above the horizontal. The cannon is mounted onfrictionless rails, so that it recoils freely. What is the speed of the sh..
An 8g bullet is fired at a speed of 216 m/s into a 190 g block that is initially at rest at the edge of a table of 1m height. The bullet fully embeds itself in the block before the bullet-block system launches off the table. How far in the x-direc..
A simple pendulum uses a steel wire as the "string." The length of this wire is 1.5 m at room temperature. What is the change in the period of the pendulum
given a sargent ideal gas cycle. All process ar quasi-static, and the heat capacities are constant. Prove that the thermal efficiency of an engine performing a cycle
You are standing 3.0 m from a convex security mirror in a store. Estimate the radius of curvature of the mirror
Two capacitors are connected in series. Let 3.40mF be the capacitance of first capacitor, 5.30mF the capacitance of the second capacitor, and Vab= 57.0 V the potential difference across the system. A)Calculate the charge on each capacitor. B)Calcu..
A block of mass A=.75kg moves with a constant speed v0=5.2 m/s and approaches another block which is at rest and attached to an ideal spring with the force constant k=2.5 N/m. Determine the amplitude of oscillations of the 2 blocks
An 8.75kg object slides over a horizontal surface. Witha velocity of 6.25m/s. A constant force of 35.7 N is exertedon the object to slow it down. How much work is required to bring the object to rest
A certain type of laser emits light that has a frequency of 6.0 × 1014 Hz. The light, however, occurs as a series of short pulses, each lasting for a time of 2.8 × 10-11 s. How many wavelengths are there in one pulse
A car of mass 840.0 kg accelerates away from an intersection on a horizontal road. Calculate the acceleration of the car at that time
The maximum current in a particular type of solenoid (used in strong B field research) can be as large as 4 kA. what is the maximum size of the magnetic field produced inside the solenoid
The Hall effect can be used to determine the density of mobile electrons in a conductor, Find the density of mobile electrons in the material
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