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An object moves along the x axis according to the equation x = 3.85t2 ? 2.00t + 3.00, where x is in meters and t is in seconds. (a) Determine the average speed between t = 2.80 s and t = 4.60 s. (b) Determine the instantaneous speed at t = 2.80 s. (c)Determine the instantaneous speed at t = 4.60 s. (d) Determine the average acceleration between t = 2.80 s and t = 4.60 s. (e) Determine the instantaneous acceleration at t = 2.80 s. (f)Determine the instantaneous acceleration at t = 4.60 s. (g) At what time is the object at rest?
Water is discharged from a large pump and travels at an average velocity of 48 ft/sec. What is the kinetic energy of each lbm of water leaving the pump
A state highway patrol car radar unit uses a frequency of 9*10^9 Hz. What frequency difference will the unit detect from a car receding
The flywheel of a gasoline engine is required to give up 510J of kinetic energy while its angular velocity decreases from 630rev/min to 480rev/min, What moment of inertia is required
A thin, square, conducting plate 45.0-cm on a side lies in the xy plane. A total charge of 0.0680 is placed on the plate. determine the charge density on the plate
A block is launched with speed up v0 a slope making an angle ? with the horizontal, Find an expression for the distance d the block travels along the slope
You are given a container with 56 g of hydrogen atoms. What is the total charge on the electrons in the container
A mountain climber gains 897 m in elevation on a particular hike. Consider the climber's body as a heat engine, how much heat does the food supply
What is the advantage of the new crumple zone design in new car's today when they are in a car crash, explain answer from a physics standpoint?
A skater spins with her arms extended at a speed of 11 m/s. If she then whips her arms in to her body to form a circle with a radius of 0.4 m, what was the radius of the circle
An excited H atom the e- is in 4d. The atom is in an external magnetic field. What are the smallest and largest possible angles
A telescope can be used as a camera if the film is placed at the image position of the objective lens, what is the angular separation of the two stars
For lead 82Pb206 (atomic mass = 205.974440 u) obtain the binding energy per nucleon (in MeV)
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