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A proton and an alpha particle (q = +2e, m = 4 u) are fired directly toward each other from far away, each with an initial speed of 0.011 c. c is the speed of light (3.0 x 10^8 m/s)
What is their distance of closest approach, as measured between their centers?
an alien spaceship traveling at a constant velocity of 13 in the x direction passes the earth call this event a at time
A steel cable is stretched across a gorge. The cable is 190 m long and has a mass of 44 kg. When one end of the cable is struck with a hammer, a wave pulse travels down the cable, reflects at the far end, and is detected back at the first end 14 s la..
A copper telephone wire has essentially no sag between poles 34.00 m apart on a winter day when the temperature is -20°C. How much longer is the wire on a summer day.
An artillery shell is launched on a flat, horizontal field at an angle of ? = 41.6° with respect to the horizontal and with an initial speed of v0= 327 m/s, What is the horizontal distance covered by the shell
A sinusoidal wave travels along a stretched string. A particle on the string has a maximum velocity of 0.900m/s, What is the amplitude of the wave
Suppose a 10 kg mass is hung from the end of a vertical oriented, massless spring. If the spring stretches 10 cm, what is the spring constant of the spring? 2) A 1- kg mass is placed at the end of a vertically oriented, massless spring.
Each day the human heart takes in and discharges about 7500 L of blood. what vertical height (in meters) can it raise this amount of blood
A capacitor consists of a set of two parallel plates of area A separated by a distance d. find the magnitude of the charge on the plates
An astronaut weighs 185 lb on earth. What is her weight on the moon, where the acceleration due to gravity is 5.28 ft/s2
A falling stone takes 0.28 s to travel past a window 2.2 m tall. From what height above the top of the window did stone fall.
A 200g ball on a 60 {cm}-long string is swung in a vertical circle about a point 200 {cm} above the floor.
The sun transfers energy to the earth by radiation at a rate of approximately 1.00kW per square meter of surface. what would be the length of its sides in kilometers and in miles
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