i need the answer quickly *ムuiz: AA 150 bball initially onthe top of a 20 ftladder is d ropped and hits the ground- Withre ference to the ground :a) what is the initial kinetic and potential energy otthe ball ? by ft.lbf unitb) what is the final kinetic e potential energy of theball?c) What is the change in kinetic. f poten tial eneryyfor the processd) If all the initial poten tial energy were somehowConverted to heat, how many calories would thisamount to ? How many Blu ? How many Joules ?کم بون سلغ عه د نرصداس3t 今レ20 treference Surfarce

Given that, Mass of the ball, m=150 lb,Height of the ball from ground, h=20 ft, (a) Initial…

iz: 150 Hb ball initially on the top of a 20 t A ladder is dropped and hits the ground-wi re ference to the ground : what is the initial kinetic and potential energy ot the ball ? by ft.lbf unit what is the final kinetic e potential energy of the

iz: 150 Hb ball initially on the top of a 20 t A ladder is dropped and hits the ground-wi re ference to the ground : what is the initial kinetic and potential energy ot the ball ? by ft.lbf unit what is the final kinetic e potential energy of the

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

Find: a) acceleratiion b) if the final velocity at 10 seconds c) the distance traveled at this time.
Q) A body with a mass of 15 kilograms is moving with a velocity of 3 meters/secand. If a force of 15 N is applied to the body, what its velocity aller 5 socunds? discuss your results please.
QUESTION 1 In the process of taking a gas from state 'a' to state c along the curved path shown in the image. 85J of heat leaves the system and 55J of work is done on the system. a) determine the change in internal energy, Ea-Ec. b) when the gas is taken along the path cda, the work done by the gas is W=38J. How much heat Q is added to the gas in the process cda? c) if Pa= 2.2Pd, how much work is done by the gas in the process abc?. d) what osvQ for path abc? e) if Ea-Eb=15J, what is Q for the process bc? QUESTION 2 suppose a gas is taken clockwise around the rectangular cycle shown in the image. Starting at b, then to a, to d, to c and returning to b. Using the values given in question 1 above a) describe each leg of the process and then calculate b) the net work during the cycle and d) the net heat during the cycle. e) what percentage of intake heat has turned into usable work i.e how efficient is this "rectangular" cycle ( give as a percentage)
Q1: A car initial velocity is 12 m/s moves with accn 3 a m/s . Find the its velocity after it moves a distance of 120 m { laws you may use are 2 V- v, = at , v,- v,¯ = 2as , s = v, t + 0.5 at } Choose the correct answer Select one: a. 29.4 m/s b. 29.4 mm c. 23 m/s d. 21.9 m/s b R VE 20 m/s A car is moving on a concave road as shown Find the reaction between the car and road if mass of car = 900 kg and R = 50 m ( assume g = 10 m/s)( a_ = v/r) Select one: a. 18000 kg b. 1800 kg c. 18000 N d. 16200 N
Pbm 2)A train starts from rest and attains a velocity of 45kmperhour in 2 minutes , with uniform acceleration .Calculate the i)acceleration ii)Distance travelled in this time 2 minutes iii)Time required to reach a velocity of 36km per hour.
A piston-cylinder assembly moves without friction between the two stoppers.The volume is 400 L when the piston is on the lower stopper and 600 L when it reaches the upper stopper.The cylinder initially contains 100 kPa and 20% dry water. System, water saturatedIt is heated until it becomes steam. Press 300 kPa to move the piston upaccording to need;a) Pressure in the cylinder in the final stateb) Work donec) Find the amount of heat transfer.d) Draw the pressure-specific volume graph.
When a system is taken from state a to state b in the diagram below along the path acb, 90.0 J of heat go into the system and 60.0 J of work is done by the system. a) How much heat is transferred into the system along path adb if the work done by the system is 15.0 J? b) When the system is returned from b to a along the curved path, the absolute value of the work done by the system is 35.0 J. Does the system absorb or liberate heat? How much heat? c) If U. = 0 J and Ua= 8.0 J, find the heat absorbed in the processes ad and db. a
5. a) Use the GREET result that well-to-pump required 1231 BTU per mile for a car, as well as the following: i) typical car gets 23.4 miles per US gallon. ii) a US gallon is 3.78 L iii) gasoline has density 730 kgm. to show that the (production) energy embedded in gasoline is 11 MJ per kg b) for gasoline show that the ratio of 'energy return on energy invested' (EROI) is 4.27 energy delivered EROI = production energy
In a skating jump, a skater rotates around their vertical central axis. Duringthe jump, the skater's rotation rate is increased by bringing their arms intotheir side. a) When bringing their arms into their side, do es the rotational kinetic energyof the skater go up, go down or stay the same? If it changes, where do es theenergy for this change come from or go to? b) Show that the change in rotational kinetic energy of the skater ∆KR canb e found by (see image) here KRi is the initial rotational kinetic energy of the skater, ωf is the nalangular sp eed and ωi is the initial angular speed. c) During the jump, when the skater draws their outstretched arms inwards,what total torque is acting on the skater if their final rate of rotation is tworotations p er second? d) After landing again, the skater is able to stop rotating and come to acomplete standstill in 0.7s. What is the average ratio of the torque on theskater to the skater's total moment of inertia during the time they come to…
A 230kg crate hangs from the end of a rope of length L=12.0m. You push horizontally on the crate with a varying force F to move distance d= 4.00m to the side a) What the mairnitude of F when the crate is in this final position? During the crate's displacement, what are b) the total work done on it, c) the work done by the gravitational force on the crate, and d) the work done by the pull on the crate from the rope? e) Knowing the crate is motionless before and after its displacement, use the answers to (b), (e), und (d) to find the work your force F does on the crate. f) Why is the work of your force not equal to the product of the horizontal displacement and the answer to (a)?
A gas-filled piston-cylinder unit with volume 2 m³ compressed and pressure 100 kpa. On the piston page. An nika constant spring of 200 kN/m . The units are then heated and Causes the volume of gas to increase to three times the volume of the original, which is pressing Springs. If it is known the surface area of the unit is 0.3 m² radius, a). The final pressure in the cylinder B) A work done with gas c) A work done with springs
A) Acceleration of mass M2 B) Speed of M2 after 4 seconds C) when M2 moves 4.6 m how far does M1 move. Thank you