Physics, 26.02.2020 05:56 winterblanco
Two objects of equal mass are on a turning wheel. Object 1 is located at the rim of the wheel while object 2 is located halfway between the rim and the axis of rotation. The wheel is rotating with a non-zero angular acceleration.
For each of the following statements select the correct option to complete the statement.
1. The centripetal (radial) acceleration of object 1 is the centripetal acceleration of object 2.
2. The magnitude of the total acceleration of object 1 is the total acceleration of object 2.
3. The tangential acceleration of object 1 is the tangential acceleration of object 2.
4. For a given time, object 2 travels a distance that is the distance traveled by object 1.
5. The speed of object 1 is the speed of object 2.
6. For a given time, the angle covered by object 2 is the angle covered by object 1.
7. The angular acceleration of object 1 is the angular acceleration of object 2.
a) equal to
b) less than
c) greater than
Answers: 3
Physics, 21.06.2019 22:00
Jason and mia are both running in a race. as they approach the finish line, you being the physicist that you are decide to time how long it takes them to reach the end of the race. when you start your stop watch (you can take this as time t = 0 s) you notice that mia is an unknown distance d ahead of jason and both are moving with the same initial velocity v_0. you also notice that jason is accelerating at a constant rate of a_j, while mia is deaccelerating at a constant rate of -a_m. jason and mia meet each other for the first time at time t = t_1. at this time (t = t_1) jason's velocity is two times that of mia's velocity, meaning v_j (t_1) = 2v_m (t_1). a) draw the position vs. time graph describing mia's and jason's motion from time t = 0 to time t = t_1. clearly label your axes and initial conditions on your graph. b) draw the velocity vs. time graph describing mia and jason's motion from time t = 0s to time t = t_1. clearly label your axes and initial conditions on your graph. c) how long from when the stop watch was started at t = 0s did it take mia and jason to meet? express your answer in terms of know quantities v_0, a_m, and a_j. d) when the stop watch started at time t = 0s, how far apart, d, were mia and jason? express your answer in terms of know quantities v_0, a_m, and a_j.
Answers: 1
Physics, 22.06.2019 12:10
Ablock having mass m slides down an inclined plane. the force of friction between the block and the inclined plane is f, the block's weight is m g, and the normal force is n. (a) draw a free β body force diagram showing the forces acting on the block. (b) write down all relevant newtonβs equations for a given situation.
Answers: 1
Physics, 22.06.2019 17:00
The chart shows the costs and shipping times for materials that a company needs to build a new product. which describes the best trade-off if the company needs to start building their product within the next two years? they should order the domestic materials because it is always best to choose the fastest shipping time. they should order the imported materials because it is always best to choose the lowest cost for materials. since the shipping time is longer, they should order the domestic materials because the additional cost is worth it to get the materials in time. even though the shipping time is longer, they should order the imported materials because they are less expensive and should arrive in plenty of time to build the product.
Answers: 1
Two objects of equal mass are on a turning wheel. Object 1 is located at the rim of the wheel while...
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