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A delivery driver is driving at 35 km/hr towards a siren havinga frequency of 350 Hz. The temperature of air is 25 degrees Celsius. Find the frequency heard by the person approaching the siren.
q1. a 3.988x10-26 kg mass particle with negative -1.44x10-18 c charge is initially moving at 50ms parallel to a wire
two spaceships approach earth with equal speeds as measured by an observer on earth but from opposite directions. a
A spring has a spring constant of 40N/m. How much work is required to stretch the spring 3.5cm from its equilibrium position
a disk of radius 1.2 cm has a surface charge density of 7.0 microcm2 on its upper face. what is the magnitude of the
Consider a linear model of a molecule with three atoms. The outer atoms are of mass m and the atom in the molecules center is of mass M. Determine the Eigen frequencies of the system
A proton is moving in a uniform magnetic field oriented along the positive x-axis. What would you need to change, if you wanted the proton to move on a helical path along the positive x axis
If an electric wire is allowed to produce a magnetic field no larger than that of the Earth (0.75 x 10-4 T) at a distance of 22 centimeter, find what is the maximum current the wire can carry
A projectile proton with a speed of 350 m/s collides elastically with a target proton initially at rest. What is the speed of the projectile proton after the collision
A constant force, = (1.27, -2.33, 3.93) N, acts on an object of mass 10.3 kg, What is the total work done by this force
A magnifying glass is a single convex lens with a focal length of f = +13.0 cm.
A flashlight bulb with a resistance of 40 ohm is powered with a six volt battery and produces .75W power. obtain the internal resistance of the battery
As a 2.0-kg block travels around a 0.50-m radius circle it has anangular speed of 12 rad/s. The circle is parallel to the xy plane and is centered on the z axis, adistance of 0.75m from the origin. The z component of the angular momentum around th..
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