How much work do you do, when you lift a mass (4.0kg) from the ground to a height of 6.0 m in 11 seconds? Answer: ____ J
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How much work do you do, when you lift a mass (4.0kg) from the ground to...
How much work (in kJ) is required to lift a 35.8 kg mass to a height of 1.02 m above the floor?
You do 200 J of work to lift a certain rock by 3.0m at a constant velocity. (a) Determine the mass of the rock. (b) You drop the rock from the 3.0m height onto the ground. Determine the Kinetic Energy of the rock just before it hits. c) Find the velocity of the rock just before it hits. K.E. = 200 J V = 3.0m K.E. = 1/2 mv^2 200 = 1/2 (9) m 4.5/4.5 m = 200/4.5 m =...
How much power does it take a power lifter to lift 102lbs 0.66m of the ground in 4.3 seconds?
You lift your school case from the floor and on the table with steady speed. The table has 1.2 m height and by lifting the school case you use 147 N force and it takes you 2 seconds. a) How much work do you do by lifting the school case? b) What is the power you use by lifting the school case?
if you lift a 50 lb barbell 6 foot off the floor, how much work do you do? by how much do you charge change the barbells potential energy? if you drop the barbell from 6-foot what is its kinetic energy just before it hits the floor?
You throw a doughnut with a mass of 0.10 kg straight up from the ground and it reaches a maximum height of 20.0 m. How much kinetic energy does the doughnut have when it is 15.0 m above the ground? (assume no air resistance)
a) Define the work W and the power P. What are their units? How much work W do you do when you lift a m =15kg suitcase h=1.5m off the ground? If the lifting is during t=.5s, how much power P are you expanding? b) Calculate the expression of the pressure p from a fluid column of height h and its density p in the gravitational acceleration g=9.8m/s2. Considering the density of water p=1gr/cm3, find the total value of the...
Inside a cylinder with frictionless walls, a disc of mass M = 4.0kg is dropped from a height H = 3.0m above a spring of negligible mass and equilibrium length L = 75.0cm. If the length of the spring at its maximum compression is 55.0cm what is the value (in N/m)of the spring’s stiffness constant k?
How much energy can be obtained from conversion of 4.00 gram of mass? 3.60 times 10^14 J How much mass could this energy raise to a height of 92 m? 3.99 times 10^11 kg If 1 gallon of gasoline contains l.06 times 10^10 J of energy, how many gallons of gasoline has the equivalent amount of energy to 4.00 gram of mass? You do not need to enter the unit.
a force of 15 n is used to lift a 500-g ball from the ground to a height of 1.0 m, when it is let go. what is the speed of the ball when it is let go?