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modern medical imaging can do much more than take a simple x-ray define and explain four methods that are used for
inside a helium nucleus there are two protons each of charge e the distance between the centers of the two protons is
if you are in a roller coaster which is moving with 10ms describing a circular arc with the radius of 10m what is the
a vertical straight wire carrying an upward 21a current exerts an attractive force per unit length of 87x104 nm on a
a the intensity of solar radiation at the earths orbit is about 1360 wm2 using 15 times 1011 m for the distance from
a 53mev kinetic energy proton enters a 015t field in a plane perpendicular to the fieldwhat is the radius of its
a the refractive index of a transparent material can be determined by measuring the critical angle when the solid is in
unpolarized light of intensity 600 wmsup2 hits a polarizera what is the intensity of light leaving the polarizerthe
a man driving a car toward a large vertical wall sounds his horn the car is traveling at 92 kmh the echo off the wall
a wave whose wavelength is 0064 m is traveling down a 732 m long wire whose total mass is 257 kg the wire is under a
a piece of metal with a mass of 38 kg and density of 1808 kgm3 is suspended from a string and then completely immersed
a car accelerates uniformly from rest and reaches a speed of 237 ms in 843 s the diameter of a tire on this car is 519
a projectile is fired at an angle such that the vertical component of its velocity and the horizontal component of its
a race car is making a u-turn at constant speed the coefficient of friction between the tires and the track is s 161
a pinhole camera is made from an 82cm -long box with a small hole in one endif the hole is 57m from a 19m -tall person
two rays leave a point source and strike a front-silvered mirror making angles with the normal of 300deg and 525deg
1 how long did it take for a message sent from earth to reach the first astronauts on the way to the moon when they
the helium-neon laser used in many labs and demos emits red light with wavelength of 06328 m if the total power in the
the wavelength of visible light varies from 040 m to 070 m as the color of the light changes from violet to red
an air-filled parallel-plate capacitor has plates of area 500 cm2 separated by 120 mma find the value of its
a lightbulb operates at a power of 60 watts when connected to a potential difference of 120 volts in this condition how
a 241 kg block and a 482 kg block are initially at rest on a frictionless horizontal surface with a compressed spring
radiation from the sun reaching earth just outside the atmosphere has an intensity of 1400 wm2a what would the
the crankshaft in a race car goes from rest to 3100 rpm in 24sa what is the crankshafts angular accelerationb how many
a mass attached to a spring vibrates 15 times in 2313 seconds what is the linear frequency in hertz of the