Physics, 22.02.2021 18:30 hannahbanana2000
A 1,425-kg car is moving along a level highway with a speed of 29.1 m/s. The driver takes the foot off the accelerator and the car experiences a resistance force of 908-N over a distance of 101 m. Determine the speed of the car (in m/s) after traveling this distance.
Answers: 3
Physics, 22.06.2019 13:10
Which of the following are used in an electrochemical cell? a. electrodes b. electrolyte c. terminals d. all of the above
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Physics, 22.06.2019 15:00
Astudent throws a water balloon with speed v0 from a height h = 1.76 m at an angle θ = 21° above the horizontal toward a target on the ground. the target is located a horizontal distance d = 9.5 m from the student’s feet. assume that the balloon moves without air resistance. use a cartesian coordinate system with the origin at the balloon's initial position. (a) what is the position vector, rtarge t, that originates from the balloon's original position and terminates at the target? put this in terms of h and d, and represent it as a vector using i and j. (b) in terms of the variables in the problem, determine the time, t, after the launch it takes the balloon to reach the target. your answer should not include h. (c) create an expression for the balloon's vertical position as a function of time, y(t), in terms of t, vo, g, and θ. (d) determine the magnitude of the balloon's initial velocity, v0, in meters per second, by eliminating t from the previous two expressions.
Answers: 3
Physics, 23.06.2019 01:00
Two solutions of the same uv-absorbing molecule were analyzed by uv-vis spectroscopy on the same instrument using 1 cm pathlength cells. use data from the table to calculate by what percentage the concentration of solution b is compared to that of solution a.sample absorbance at 315nm a 0.45 b 0.80
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Physics, 23.06.2019 09:10
Many science fiction movies and tv shows have detected using a nuclear weapon to destroy astroids what problems does plait see with this plan
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A 1,425-kg car is moving along a level highway with a speed of 29.1 m/s. The driver takes the foot o...
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