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An antelope runs 350m at a constant speed of 2.20 m/s, then immediately changes speed to 3.50 m/s and runs for a distance of 400m. What is the average speed of the antelope for the entire period of motion? Assume the motion of the antelope is 1-dimensional. Answer should be in m/s.
an electric field is constant at every point on a square surface that is 0.80 m on a side. this field has a magnitude
king arthurs knights fire a cannon from the top of the castle wall. the cannonball is fired at a speed of 52 ms and at
A 4·cm tall candle is placed 300·cm from a lens with a focal length of +60·cm. Note: enter the absolute value of your answers for all distances and heights, How far from the lens will the image be
a car is driven along a circular track. the track road is flat. the car starting from rest increases its speed
1 from the top of a 40.0m high cliff two rocks are simultaneously thrown. one is thrown upwards at 20.0ms the other is
An object with a constant acceleration has velocity of 12 meter per second when its position is x = 8 meter. At another position x = 16 meter, its velocity is 20 m/s. Calculate its acceleration
consider an electron in a 1-d box of length 258 pm.a. what is the zpe in j per electron? in kjmole?b. where would the
A two-slit pattern is viewed on a screen 1.45 meter from the slit. If the two third-order minima are 19.0 centimeter apart, calculate the width of the central bright fringe
A Van de Graaff accelerator is essentially a parallel plate capacitor. Such a machine is changed by an electrical potential of 2.5 x 10^6 volts. What is the energy density stored in the field
At the equator, the earth's magnetic field is approximately horizontal and is directed toward the north and has a value of 8 * 10^-5 T. What is the emf if the bullet travels south
a long spring is stretched and attached to two walls 5.42 m apart. the mass of the spring is 276 g. the tension in the
A capacitor with a capacitance of C is charged with charge of magnitude Q on each plate. Determine what is the time constant of this RC circuit
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