Physics, 25.09.2019 23:30 bryant0103
11. which of the following phenomena is taking place when sound waves are reflected from a surface along parallel lines? a. refracting b. absorption c. focusing d. diffusion
Answers: 1
Physics, 22.06.2019 02:30
The human body stores chemical energy from digested food. some of the chemical energy is converted into mechanical energy when the body moves. which statement best supported by this information
Answers: 3
Physics, 22.06.2019 10:10
Which branches of natural science include the study of an organism that lived 10 million years ago
Answers: 1
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, 22.06.2019 16:00
What part of the ear is names after tools, such as the hammer and the anvil?
Answers: 1
11. which of the following phenomena is taking place when sound waves are reflected from a surface a...
History, 22.01.2021 19:10
History, 22.01.2021 19:10
Mathematics, 22.01.2021 19:10
Chemistry, 22.01.2021 19:10
Mathematics, 22.01.2021 19:10