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A 20 kg block rests on a variable ? frictional incline as shown below. Answer the questions concerning this block on the variable incline. Which of the following statements are true regarding the stationary block on the incline? Check all that apply. Check all that apply. The normal force is equal to the weight The y component of the weight balances the static friction. The weight, static frictional force, and the normal force are all equal. The x component of the weight is equal to the static frictional force. The system is balanced and so the net force is zero. The static frictional force is equal to the weight. The normal force is equal to the y component of the weight.
question a mass of 0.30 on the end of a spring oscillates with a period of 0.45 and an amplitude of 0.15find the
A 743 pF capacitor is charged to 130 V and then quickly connected across a 172 mH inductor.What is the resulting frequency of oscillation
A region of space contains a uniform electric field oriented along the y-axis. How is the plane of second frame oriented with respect to the plane of the first one
An electron moving with a speed of 5.5×105m/s in the positive x direction experiences zero magnetic force. Find the components of the magnetic field
a binary star system consists of two equal mass stars that revolve in circular orbits about there center of mass. the
question a rifle of 8lb fires a bullet weighing 0.8oz which leaves the rifle with a muzzle velocity of 2000 fts. what
A radar transmitter contains an LC circuit oscillating at 2.10 1010 Hz. What is the common reactance of the loop and capacitor at resonance
Describe "acceptance ratio" as a percentage of accepted trials. Simulation shows that acceptance ratio is higher on higher temperature (behave as increasing function of temperature).
the speed of sound in an alcohol at a temperature of 20 c is 1260 ms. the density of the alcohol at that temperature is
A boy with a mass of 60 kg is hanging from a spring with a spring constant of 160 N/m. With what frequency does the boy bounce up and down
Electrons are used in a single-slit diffraction experiment. Such an experiment works well if the slit has a width of 10 times the wavelength. what is the electron energy
Infrared spectra are used by chemists to help identify an unknown substance. Atoms in a molecule that are bound together by a particular bond vibrate at a predictable frequency, determine the resonant frequency of this bond and the wavelength of li..
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