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The position of the front bumper of a test car under microprocessor control is given by x(t) = 2.07 m + (4.50 m/s2)t2 - (0.100 m/s6)t6.
(a) Find its position at the first and second instants when the car has zero velocity.
(b) Find its acceleration at the first and second instants when the car has zero velocity.
How much force, in Newtons, is needed to accelerate a truck with a mass of 1500 kilograms from a full stop to 40 m/s in 10 seconds if the rate of acceleration is constant.
The Eiffel tower in Paris is made of iron. It is 300 meters tall on a cold day (T = - 5 degrees Celsius). What is its height on a hot day
A long straight wire carrries a current I1 of 15 A. A rectangular coil with two sides parallel to the straight wire has sides 5 cm, what is the net force of the coil
A helicopter is ascending perpendicularly with a speed of 5.42 m/s. At a height of 146 m above the Earth, a package is dropped from a window. How much time does it take for package to reach the ground.
A pocket ion chamber is built with an internal volume of 10 cc and a capacitance of 20 pF. calculate the minimum gamma-ray expose to which the pocket chamber will be sensitive
600 nm light is shined on a single slit which is 0.1mm wide, What is the width of the central maximum
What is the jet's acceleration and what is the jet's speed after it accelerates for 6 s - What is the net force on the motorcycle
An object suspended from a spring vibrates with simple harmonic motion. At an instant when the displacement of the object is equal to one-half the amplitude, what fraction of the total energy of the system is kinetic
A series RCL circuit includes a resistance of 291 ?, an inductive reactance of 685 ?, and a capacitive reactance of 409 ?. What is the voltage of the generator
Find out an acceleration of mass and tension in the string
A quarter-pound hamburger with all the fixings has a mass 210g . The food energy of the hamburger is 2.4MJ. What is the energy equivalent of the mass of the hamburger
Calculate the acceleration of the object for an elapsed time of t=1s. use the formula: x-x0=v0t+1/2at^2 x=4.5 m v0=6.0m/s x0=-3.7m
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