Determine work done in moving crate and power of hoist
The crate is then pulled by a hoist a distance of 3.4m across the flat truck bed in 8 seconds. Determine the work done in moving the crate and the power of the hoist when coefficient of friction is 0.6.
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In order for the pressure of a fixed mass of gas at 13.2°Cto change from 2 atm to 3 atm and its volume to go from 4 L to 5 L,what must the final temperature become?
A plane ,driving at an angle of φ with the vertical, releases a projectile at an altitude of 730m. The projectile hits the ground 5.0s after it was released, having travelld a horizontal distance of 900m. (i) Calculate the speed of the plane w
How many grams of precipitate are formed if 204 mL of a 0.896 Maluminum sulfate solution and 386 mL of a 5.46 M sodium hydroxide solution are mixed together?
When an opinion poll calls residential telephone numbers at random, only 20% of the calls reach a live person. You watch the random digit dialing machine make 15 calls.
It requires 799 kJ of energy to break one mole of carbon-oxygen double bonds in carbon dioxide. What wavelength of light does this correspond to per bond?
In a sample of 20 bolts, the average breaking torque was 89.7 J with a standard deviation of 8.2 J. Assume that the breaking torques are normally distributed. Find a 99% prediction interval for the breaking torque of a single bolt.
A 1200-turn coil of wire that is 2.3 cm in diameter is in a magnetic field that drops from 0.12 T to 0 in 9.0 ms. The axis of the coil is parallel to the field. What is the emf of the coil?
For a lawyer, 10 clients come to see her on average every day. The time of talking to each customer follows an exponential distribution of λ =2 customers per hour (Please note that the expected time for a customer is not 2). What is the exp
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