A craned moved a 200 kg hot tub from the ground to the top of the hotel, 10 stories above the ground, in 80 seconds. If the crane used 200,000 J of energy, how much power did the crane need?
Solved
Show answers
More tips
- F Food and Cooking How to Cook a Steak with Mustard Sauce? What Kind of Meat to Choose?...
- P Photography and Videography What is lens calibration and why is it needed?...
- F Family and Home Stay Warm but Don t Overheat: What is the Optimal Temperature for Your Home During Winter?...
- H Health and Medicine How to Treat the Flu: A Comprehensive Guide...
- O Other What is a Disk Emulsifier and How Does it Work?...
- F Family and Home What does a newborn need?...
- F Family and Home Choosing the Right Car Seat for Your Child: Tips and Recommendations...
- F Food and Cooking How to Get Reconfirmation of Registration?...
- C Computers and Internet How to Get Rid of Spam in ICQ?...
- A Art and Culture Who Said The Less We Love a Woman, the More She Likes Us ?...
Answers on questions: Physics
- P Physics The probability which is based on the observations of an experiment is called: A. Theoretical Probability B. Axiomatic Probability C. Experimental Probability D. None...
- P Physics Two speakers are positioned in such a way that, while each os producing sound, and observer nearby cannot hear any sounds. this shows that the speakers are creating...
- P Physics Which of the following does the period of a pendulum depend on? 1. mass of the bob 2. length of the bob 3. acceleration due to gravity a. 1 only b. 2 only c. 2 &...
- P Physics In a gasoline engine, work is done by the position as it compresses the fuel-and-air mixture in the cylinder. this process is a. isovolumetric b. isothermal c. hydroelectric...
- P Physics At a minimum, how often are investigators funded by the u.s national institute of health required to receive conflict of interest training...
- P Physics 2points what is the acceleration of an object in free fall near earth s surface?...
- E English Which of the following shows pronoun and antecedent agreements ? a. neither of the women wants to take their car all the way to new york city. b. everybody i know...
- M Mathematics [15 points] (1.) what is the slope of the graph (2.) what does the slope mean graph shown in photo attached...
- H History What was the primary economic strain in the early days after the end of world war ii? a. unemployment b. inflation c. supply and demand d. transportation/distribution...
- E English Which spell does umbridge use to trap magorian in ropes?...
Ответ:
Given that,
Mass of a hot tub = 200 kg
A crane is moved from the ground to the top of the hotel, 10 stories above the ground, in 80 seconds.
Energy used = 200,000 J
To find,
The power the crane needed.
Solution,
Power needed is equal to energy used per unit time. It can be given by :
So, the required power is 2500 W.
Ответ:
Surface Waves - Rayleigh & Love Waves.