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A car, moving initially at 32Km/h(N), turns a corner and continues at 32Km/h(W). The turn takes 3.0 s to complete. Find (a) the change in velocity and (b) the average acceleration during the turn.
A pendulum clock is moved from the Mississippi Delta region to the Rockey Mountains. Will theclock run faster or slower in the Rockies? Why? How can it beadjusted to compensate for this change?
a spacecraft is traveling with a velocity of v0x 6150 ms along the x direction. two engines are turned on for a time
A certain fuel-efficient hybrid car gets gasoline mileage of 55.0 mpg (miles per gallon). If you are driving this car in Europe and want to compare its mileage with that of other European cars, express this mileage in km/l (liter).
An archer's bow is drawn at its midpoint until the tension in the string is 0.835 times the force exerted by the archer. What is the angle between the two halves of the string
a rock is thrown downward from the top of a 40 m tower with an initial speed of 12 m/s. if g-9.8 m/s^2, what is the speed of the rock just before hitting the ground
A mass spectrometer has an adjustable magnetic field. When themagnetic field is 1.000e-1 T, a singly ionizedhydrogen atom (a proton) will strike the detector at a particularlocation. Suppose a triply-ionized carbon 12 atom, whose mass is bydefinit..
A fast pitch softball player does a "windmill" pitch, moving her hand through a vertical circular arc to pitch a ball at 72 mph. What is the magnitude of the force her hand exerts
What are room temperature (68 deg F) and body temperature (98.6 deg F) on the Celsius scale? Choose one answer. a. Room Temp = 25 deg C and body Temp = 37 deg C b. Room Temp = 20 deg C and body Temp = 30 deg C c. Room Temp = 20 deg C and body Temp = ..
If a hydrogen atom makes a transition from then = 6 state to the n =5 state, decide the wavelength of the photon created in the process. Assuming that the atom was initially at rest, decide the recoil speed of the hydrogen atom when it emits this pho..
Compute the index of refraction of the gas
A circuit includes three resistors in parallel each with the resistance of 55 arms if one of the devices breaks what is the ratio of the final current
When the projectile is at the top of its trajectory, an internal explosion causes it to separate into two fragments of equal mass. One of the fragments falls straight downward as though it had been free from rest.
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