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q1 radio amateurs are permitted to communicate on the 20-meter band what frequency of radio waves corresponds to a wavelength of 10 meters the speed
q having completed the basics of the memory system we turn not to issues involving memory one important issue is the reliability of memory if you
q1 in a head-on collision a car stops in 027 from a speed of 12 the driver has a mass of 76 and is fortunately tightly strapped into his seat what
q after the near spacecraft passed mathilde on some occasions rocket propellant was expelled to adjust the spacecrafts momentum in order to follow a
q1 the loaded cab of an elevator has a mass of 30 x 103 kg and moves 221 m up the shaft in 23 s at constant speed at what average rate does the force
q1 a 60 kg circus performer jumps from a 62 m height onto a trampoline and stretches it downward 036 m assume that the trampoline obeys hookes lawa
q1 a 789 kg man steps off a platform 457 m above the ground he keeps his legs straight as he falls but at the moment his feet touch the ground his
q1 a 3988x10-26 kg mass particle with negative -144x10-18 c charge is initially moving at 50ms parallel to a wire with 18a current going to the right
q1 a highway curve of radius 500 m is designed for traffic moving at a speed of 960 kmhr what is the accurate banking angle of the roadq2 two
q1 suppose a uniformly charged with a linear charge density wire starts at point 0 and rises vertically along the positive axis to a length determine
q1 the wire is made up of atoms with valence 2 and molecular mass 80 gmole where u 15605 times 10-27 kg is the mass of a hydro- gen atom assume
q1 a particular guitar string is supposed to vibrate at 195 hz but it is measured to actually vibrate at 210 hz by what percent has to the tension in
q1 a car of mass 1100 kg travelling at 500kmhr enters a banked turn covered with ice the road is banked at an angle and there is no friction between
q1 a wheel is spinning clockwise at a 120 revolutions per second at t 0 because of friction in the bearings supporting the axle the wheel slows down
q1 far in space where gravity is negligible a 450 kg rocket travelling at 77 ms fires its engines the thrust force as a function of time with
q a certain toaster has a heating element made of nichrome resistance wire when the toaster is first connected to a 100 v source of potential
q1 a person stands between two speakers connected to the same source each speaker produces a tone with a frequency of 200 hz on a day when the speed
q1 a 40 g rifle bullet travelling 260 ms buries itself in a 40 kg pendulum hanging on a 30 m long string which makes the pendulum swing upward in an
q1 a car takes 9 s to go from v 0 to v 55 ms at about constant acceleration if you wish to find out the distance travelled using the equation d 12
q1 for each of the situations below the charged particle enters a region of uniform magnetic field illustrate a vector to represent the direction of
q an electron is projected with an initial speed u0 160 x 106 ms into the uniform field between the parallel plates suppose that the field between
q1 an 920 n sled is pulled a distance of 197 m the task requires 120 104 j of work and is completed through pulling on a rope with a force of 125 n
q1 what fraction of the power radiated by the sun is intercepted by the planet mercury the radius of mercury is 244 x 106 m and its distance from the
q1 consider a 30kg ball and a 54kg ball in free fallwhat is the net force performing on eachwhat is the acceleration of eachq2 two identical cannons
q1 a planet of mass 400 1025 kg is in a circular orbit of radius 300 1011 m around a star the star exerts a force on the planet of constant magnitude