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Solve the each part of given question:
Question: Suppose the bicyclist above rolls down a hill with velocity vx = (10.0 + 7.0 t) m/s.
Part A: What is the instantaneous velocity of the cyclist at t = 5 s?
Part B: What is the average acceleration of the cyclist between t = 1 s and 5 s?
Part C: What is the instantaneous acceleration at t = 5 s?
Please show work I think I have the answer just not positive.
a spherical ball hanging on a string on a smooth, frictionless wall. The mass of the ball is m, its radius is R, and the length of the spring is L. Find the normal force between the ball and the wall
A can of sardines is made to move along an x axis fromx1 = 0.22 m tox2 = 1.22 m by a force given byF = iF0exp(-0.36x), How much work is done on the can by the force
What is the sound level of a sound whose intensity is 6.5 × 10-8 W/m2, What is the intensity of a sound whose sound level is 30 dB
A cop car drives at 30m/s toward the scene of a crime, with its siren sounding (f = 2125 Hz.) Estimate the frequency heard by people at the crime scene as the siren approaches and the frequency heard as the siren moves away from people.
A guitar string, destined to be an upper E string, has length 98.00 cm and mass 0.460 g. What is its mass per unit length? What length of this string should be used on a guitar if the fundamental frequency is to be 330 Hz and its tension is to be 78...
suppose the insulating qualities of the wall of a house come mainly from a 4.0 inch layer of brick and an r-19 layer of
A parallel plate compactor has two circular plates separated by 0.3mm. If the capacitance of this arrangement is 4 x 10^-10 Farads, what is the radius of all plate of the capacitor?
A prospector finds a solid rock composed of granite (? = 2650 kg/m3) and gold. What percentage of the rock is gold by volume
In Fig. 22-30 the electric field lines on the left have twice theseparation as those on the right. (a) Ifthe magnitude of the field at A is 58 N/C, what is the magnitude ofthe force on a proton at A?
a spare pressure vessel flange bolt is discovered inside the reactor shroud during a refueling outage of a nuclear
A thin uniform rod (length = 1.29 m, mass = 1.95 kg) is pivoted about a horizontal frictionless pin through one of its ends. What is the angular acceleration of the rod at the instant it is released
A coiled telephone cord forms a spiral with 56 turns, a diameter of 1.30 cm, and an unstretched length of 60.0 cm. Determine the self-inductance of one conductor in the unstretched cord.
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