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# A1.20 × 104 kg railroad car moving at 7.70 m/s to the north collides with and sticks to another railroad car of the same mass that is moving in the same direction at 1.84 m/s. what is the velocity of the joined cars after the collision?   ### Another question on Physics Physics, 22.06.2019 01:30
Use the frequency histogram to complete the following parts. â€‹(a) identify the class with theâ€‹ greatest, and the class with theâ€‹ least, relative frequency. â€‹(b) estimate the greatest and least relative frequencies. â€‹(c) describe any patterns with the data. female fibula lengths 30.5 31.5 32.5 33.5 34.5 35.5 36.5 37.5 38.5 39.5 0 0.05 0.1 0.15 0.2 0.25 length (in centimeters) relative frequency a histogram titled "female fibula lengths" has a horizontal axis labeled "length in centimeters" from 30.5 to 39.5 in increments of 1 and a vertical axis labeled "relative frequency" from 0 to 0.25 in increments of 0.05. the histogram contains vertical bars of width 1, where one vertical bar is centered over each of the horizontal axis tick marks. the approximate heights of the vertical bars are listed as follows, where the label is listed first and the approximate height is listed second: 30.5, 0.02; 31.5, 0.04; 32.5, 0.05; 33.5, 0.13; 34.5, 0.22; 35.5, 0.25; 36.5, 0.13; 37.5, 0.06; 38.5, 0.09; 39.5, 0.01. â€‹(a) the class with the greatest relative frequency is nothing to nothing centimeters. â€‹(type integers or decimals. do not round. use ascendingâ€‹ order.) Physics, 22.06.2019 05:30
Because light travels in a straight line and casts a shadow, isaac newton hypothesized that light is Physics, 22.06.2019 21:20
An electron is ejected into a horizontal uniform e⃗ field at a parallel horizontal velocity of v0. assume the electron's initial position x0, initial velocity v0, time t, magnitude of electric field e, electron's mass m, and the magnitude of the electron's charge |e|. ignore the force that earth exerts on the electron. assume the e⃗ field is in the same direction as the initial velocity. part a define the equation for the electron's velocity. express your answer in terms of the variables v0, |e|, t, e, and m. Physics, 22.06.2019 23:30
A5.0 kg bowling ball is on a rack 1.5 m above the floor. what is the gpe of the bowling ball-earth system ?
A1.20 × 104 kg railroad car moving at 7.70 m/s to the north collides with and sticks to another rail...
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