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A) Anna walks 61 m due north, 76 m due east, and then 89 m due south. What is the direction (angle in degrees) of her net displacement as measured from the x axis where counterclockwise is the positive direction?
B) An object is thrown vertically upward with a speed of 14.66mph. How much time from launch will it take to reach the bottom of a well 5.64 m deep?
C)If vector A has an x-component of 2.89 m and a y-component of 4.08 m, and vector B has an x-component of 3.26 m and a y-component of 3.62 m, then what is the magnitude of the vector Egiven by the vector sum of 3A + 5B?
D)A predatory fish can accelerate from rest to 4.36m/s in 0.16s. What is the acceleration of the fish?
A heat engine utilizes a heat source at 580 degrees Celsius and has an ideal (Carnot) efficiency of 28%, what must be the temperature of the heat source
A neuron is stimulated with an electric pulse. The actionpotential is detected at a point 3.4 cm down the axon, .0052slater. What is the speed of the electric pulse along the axon
In a set of experiments for on a hypothetical one electron atom you measure the wavelengths of the photons emitted for the following transitions ending, What is the energy level for each of the first five n states
You have a 85.5-cm-long copper rod with a rectangular cross section of dimensions 5.21 cm by 7.45 cm. You maintain the ends of the rod at 48.7°C and 85.1°C, but otherwise insulate the rod from its environment. Find the heat current through the rod..
A force of F=9.0i+8.0jN is applied to an object about a fixed axis aligned with the z direction. If the force applied at the point (6.00 m, 9.00 m), illustrate what is the magnitude and direction of the torque?
The electrical power supplied to a device is 120 V at 60 Hz. Thedevice requires 20.0 V and draws 2.5. What would be the current in the primary?
A solenoid 3 centimeter long consists of 3762 loops of wire. If the magnetic field inside the solenoid is 3 T. Find the magnitude of the current that flows through it
At what angle should the road bank on the curve so that no frictional force is required by a vehicle travelling around the curve at the speed limit.
A 2.0-cm-diameter solenoid is wrapped with 1000 turns per meter. 0.60cm from the axis, What is the rate dI/dt with which the current through the solenoid is changing
A 1.0mm -diameter, 40cm -long copper wire carries a 3.5A current, What is the potential difference between the ends of the wire
At depths greater than 2 meters in Kansas, the wintertime soil temperature is approximately 15 degrees C. Determine the coefficient of performance
the relativistic heavy ion collider rhic at brookhaven iscolliding fully ionized gold au nuclei accelerated to an
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