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A 75-kg person, starting from rest, sleds down a slide 40. m high hill reaching the bottom with a speed of 18 m/s. Calculate
a) the PE at the top,
b) the KE at the bottom of the hill,
c) and finally, the thermal energy that was generated in the process.
Please show your work because I am having trouble trying to visualize the thermal energy in the process.
Nora jogs several times a week and always keeps a journal ofhow much time she runs. How long has Nora been jogging when shereaches the bank
Suppose a single electron orbits about a nucleus containing two protons (+2e), as would be the case for a helium atom from which one of the naturally occuring electrons is removed. obtain the magnitude of the electron's centripetal acceleration
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Determine the minimum diameter for the shaft to provide a minimum factor of safety of 3.5 based on the maximum-shear stress (MSS) theory
A speeder is pulling directly away and increasing his distance from a police car that is moving at 26.0 m/s with respect to the ground. The radar gun in the police car emits an electromagnetic wave with a frequency of 6.97E+9 Hz.
A 2.20 kg mass on a spring has displacement as a function of time given by the equation x(t)= (7.40 cm) cos [4.16 rad/s) t - 2.42 rad]. Find the time for one complete vibration
A 32.0 µF capacitor is connected to a 45.0 omegacap.gif resistor and a generator whose rms output is 30.0 V at 60.0 Hz. compute The phase angle for the circuit
A uniform ring of mass 3 kgand radius 5m is rotating about its axis of symmetry withan angular speed of 2 rad/s. How much work is required tobring it to rest
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