How much work is done on the rock by the rope
A 2 kg rock, tied to a 3 meter long rope, is spun around in a horizontal circle at 4 m/s. How much work is done on the rock by the rope as it goes around the circle one time at constant speed? (answers are in units of Joules)
Expected delivery within 24 Hours
What is the probability that there are anywhere from 2 to 4 (inclusive) that do not have a useful life of at least 800 hours in a batch?
Find the 99% confidence interval of the mean number of jobs? To estimate the true mean within 1/2 job with 99% confidence, how large of a sample is needed?
An oscillating LC circuit has a current amplitude of 9.80 mA, a potential amplitude of 276 mV, and a capacitance of 232 nF. What are: (a) the period of oscillation (b) the maximum energy stored in the capacitor
What is most nearly the amount of work done to overcome friction to slide the block a distance of 20 meters across this surface.
Do they qualify for any of the loans in Question 10 if the bank requires a total housing cost ratio less than 28% and a total debt-to-payments income ratio of 36%?
The number of customers arriving per hour at a certain automobile service facility is assumed to follow a Poisson distribution with a mean of 5.6 customers per hour. What is the probability that there are at least 50 arrivals in an 8-hour shift?
An electron was accelerated from rest through a potential difference of 9900 V. What is its speed? The mass of an electron is 9.11 x 10-31 kg, and its charge is 1.602 x 10-19 C. Please show work.
A sphere of diameter 100 mm, rotating at a rate of 286 rpm, is situated in a stream of water (15 degree C) that has a velocity of 1.5 m/s. Determine the lift force (in Newtons) of the rotating sphere.
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