Physics, 30.01.2020 08:03 chaseashley24
Agolf ball is hit off a tee at the edge of a cliff. its x and y coordinates as functions of time are given by x = 18.0t and y = 4.00t – 4.90t2, where x and y are in meters and t is in seconds. (a) write a vector expression for the ball’s position as a function of time, using the unit vectors and . by taking derivatives, obtain expressions for (b) the velocity vector as a function of time and (c) the acceleration vector as a function of time. (d) next use unit-vector notation to write expressions for the position, the velocity, and the acceleration of the golf ball at t = 3.00 s.
Answers: 2
Physics, 22.06.2019 03:50
Which statement correctly describes a step-up transformer? a. it increases the amount of electric energy available. b. it increases the voltage of an electric current. c. it changes direct current into alternating current. d. it has more loops of wire in its primary coil.
Answers: 1
Physics, 22.06.2019 17:00
Amajor difference radio waves, visible light, and gamma rays is the of the photons, which results in different photon frequencies and wavelengths
Answers: 1
Physics, 22.06.2019 19:30
Aplayground slide is 8.80 ft long and makes an angle of 25.0° with the horizontal. a 63.0-kg child, initially at the top, slides all the way down to the bottom of the slide. (a) choosing the bottom of the slide as the reference configuration, what is the system's potential energy when the child is at the top and at the bottom of the slide? what is the change in potential energy as the child slides from the top to the bottom of the slide? (include the sign of the value in your answer.)
Answers: 3
Physics, 23.06.2019 00:00
Determine the largest intensity w of the uniform loading that can be applied to the frame without causing either the average normal stress or the average shear stress at section b–b to exceed σ=19 mpa and τ=24 mpa, respectively.
Answers: 3
Agolf ball is hit off a tee at the edge of a cliff. its x and y coordinates as functions of time are...
Mathematics, 03.12.2021 20:10
History, 03.12.2021 20:10
Mathematics, 03.12.2021 20:10
English, 03.12.2021 20:10
Mathematics, 03.12.2021 20:10
Arts, 03.12.2021 20:10
Mathematics, 03.12.2021 20:10