3. The unit of measurement on a number line is the meter. The force (in newtons) on a particle at x on the number line is F(x): 12e3x How much work (in joules) is done on from x = 0 a particle x = 2? that the = force moves to joules

The batmobile of mass 856kg, traveling at 140.9km/h, brakes and comes to a stop. Calculate the work done on the batmobile in kilojoules. Do NOT include units in your answer. Round your answer to 2 decimal places. Do NOT change to scientific notation. Ignore significant figures.

a) Find the dimension of the unknown 'A' and 'B' in the equation vt = velocity t' is the time and 'x' is displacement. b) How much work has to be done to accelerate 1320kg car from 105km/h to 120km/h? At-1 + Bx² where 'v' is the

Use physics formulas to calculate each quantity in Exer- cises 19–24. 19. The mass of an object with density 12 grams per cubic centimeter in the shape of a cylinder with radius 4 cen- timeters and height 10 centimeters. 20. The mass of an object with density 600 grams per cubic centimeter in the shape of a cone with radius 0.5 meters and height 1 meter. 21. The work required to lift an object that weighs 20 pounds to a height of 100 feet. 22. The work required to lift an object 2 feet into the air, given that the object has a weight-density of 50 pounds per cubic foot and that the object is a cylinder with radius 2 inches and height 6 inches. 23. The hydrostatic force exerted by water on the bottom of a full, 2-foot deep rectangular tank with a 3 x 4 foot base. 24. The hydrostatic force exerted by a liquid of weight-density 70 pounds per cubic foot on the bottom of a cylindrical tank with height 8 feet and radius 2 feet.

1. A water pump pumps out 2400kg of water per minute. (A) if water is coming out with a velocity of 3 m/s, what is power of the pump(B) How much work done, if the pump runs for 111hours

A 75 kg sprinter accelerates from 0 to 8.0 m/s in 5.0 s. What is the metabolic energy, in kJ (kiloJoules)?  Your answer needs to have 2 significant figure, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement.

A spring needs a force of 7 N to compress it 38 cm. How much work is required to stretch the spring 35 cm? (Work is also equal to elastic potential energy.) ROUND OFF ANSWER UP TO 2 DECIMAL PLACES. INPUT BOTH THE NUMBER AND THE UNIT (ABBREVIATION OF UNIT ONLY).

If you expended 1500 watts for 3 hours, how many kilowatt-hours (kWh) would that be? Enter answer as number followed by a space and then the correct units (i.e "123 Unit").

Suppose that 3 J of work is needed to stretch a spring from its natural length of 24 cm to a length of 38 cm. (a) How much work (in J) is needed to stretch the spring from 26 cm to 34 cm? (Round your answer to two decimal places.) 306.12 X J (b) How far beyond its natural length (in cm) will a force of 25 N keep the spring stretched? (Round your answer one decimal place.) 8.2 cm

Please only asnwer part (d) Answer of (a) : 60 Answer of (b) : 120 Answer of (c) : particle K.E. increases by 17.1J