Let C = A - B. Calculate the dot product of C with itself and thus derive the law of cosine
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- 4. What is the power formula when work is given? a. What is the unit of measurements that each has to be in? b. What is the power of a machine using 330 J of work in 5 seconds?Please answer part D of this problem, Make sure you do the right work please and provide the right answer. DO not type your work upload a picture of your work please.In raising a 5000-N piano with a pulley system, the workers note that for every 3 m of rope pulled down, the piano rises .3 m. a) Ideally, how much force is required to lift the piano? b). If the workers actually pull with 750-N, what is the efficiency of the pulley system?
- a.) Evaluate the dot product of the pair of vectors in (Figure 1). A⋅B= b.) Evaluate the dot product of the pair of vectors in (Figure 2). C⋅D= c.) Evaluate the dot product of the pair of vectors in (Figure 3). E⋅F=Can you please answer number 3 and show all of the steps to the solutionsolve please ..
- Will rate!! A Freebody diagram is foreign object is shown in the figure. FA = 420 N, FB = 300 N, FC = 275N, and FD = 295N. Assume angle left = 31degrees, and alpha =13 degree. How much work in (J) does FA do on the object if it moves 2.9 m downward?Problem Power Output. In each case, find your average power in watts. Assume that riding a bike burns 100 Calories per mile. If you ride at a speed of 20 miles per hour, what is your average power output, in watts?Prove that V=Work/Change
- Pls solve this question correctly instantly in 5 min i will give u 3 like for sure air is 5000kw, turbine from 1-10, wind speed 5m/s. These are 2 questions can you please answer both?Problem 10.39 (Figure 1) Figure Energy (J) 4- 3 2- 1 0 -1 -2 + 1 of 1 K₁ + U₁ + Wext K₁ + Uf + AEth Part A How much work is done by the environment in the process shown in the figure? Express your answer with the appropriate units. Wext = Submit Part B O I Submit μÅ Provide Feedback Value Request Answer Ps Is energy transferred from the environment to the system or from the system to the environment? Units O Energy is transferred from the environment to the system. O Energy is transferred from the system to the environment. Request Answer ? 15 of 25 Review Next >