Three point charges are placed on cartesian coordinate system as shown diagram on left. Find ; a) Net electric force on Q.. b) Find net electric field at origin. . c) If a 4th charge of 2nC is put on origin, what will be the net electric force on it.

Q: A body does 32 Joules of work in 6 seconds . What is it's power

A: Power is define as the work done per unit time. Power = work/time

Q: A 0.190-kg wooden rod is 1.20 m long and pivots at one end. It is held horizontally and then…

A: Given,  Mass of rod, m=0.19kg Length of rod, L=1.2m

Q: A man pushes a lawn mower on a level lawn with a force of 195 N. If 28% of this force is directed…

A:

Q: A body does 30 Joules of work in 6 seconds . What is it's power ?

A: Given data :   Work done   =   W    Time taken   =   T        To find :            Power

Q: What is the efficiency of a machine that produces 23 J of work from an input of 55 J? A. 32 %…

A: Given data:  Work done (Wout) = 23 J Input energy (Ein) = 55 J Required: Efficiency of the machine

Q: 4. W - 100 J t-10 s P=? 7. W-500 J t=25s P=? *** 5. W=225 J P-25 W t=? 8. W=336 J t=? P = 14 W 6.…

A: 4) W=100 J t=10 s P=W/t=100/10=10 w 5) W=225 J P=25 w t=W/p=225/25=25 s 6) P=20 w t=15 s…

Q: at point A the skater has 3400 J of PE. At point D the skater has 1600 J of PE. how much KE does a…

A:

Q: GPE - mgh 1 Ccaletate the potential energy, hinetic energy, mechanical energy, velocity, and height…

A:

Q: An 1100 kg car moves at 22m/s. Neglecting friction, what braking force is needed to stop the car in…

A: CONCEPT: Given, Mass of the car is m = 1100 kg. Initial velocity of the car is u = 22 m/s. Time is t…

Q: Work is measured in the units of? Choose all that apply.   A. Joules (J)   B. Kilocaloie   C.…

A: The international System of unit of work is joule. The symbol of joule is J. Joule is equal to the…

Q: A 5 Kg block moves with veocity of V= (6i + 8j) m/s. its kinetic energy is

A: Velocity v=(6i+8j) m/s Mass= 5kg Kinetic energy k?

Q: Match each unit with the physics concept it represents. force а. Newtons work b. watt mechanical…

A: Match each unit with the physical concept

Q: the KE of a 1 000 kg . Calculate car travelling at 60 km/h.

A: Given data:  Mass (m) = 1000 kg Velocity (v) = 60 km/h Required: Kinetic Energy (KE)

Q: Initial Final K, +马+馬,WK y.AE te= 0.80 s Y3D0.70m to Earth ti= 0 Earth mbarbell=13.6 kg వా

A: Given: The mass of the barbell is 13.6 kg. The diagram is as follows: Introduction: The principle…

Q: n engine releases 1675 J of energy per cycle and performs 200J of work. What is the value of power i

A: Given Work done by the engine is W=200 J Time taken is t=0.89 s

Q: A 1400kg car accelerates from 11 m/s to 22 m/s. How much mechanical work was done on the car by the…

A: Given that:-Mass of the car, m=1400 kgInitial velocity, vi=11 m/sFinal velocity, vf=22 m/sWe know…

Q: A machine puts out 400 W of power for every 1000 W put into it. The efficiency of the machine is

A:

Q: Q1/ Derive the power (watt) into its tlhe basic S.I mits?

A: Power = workdone/time

Q: What is the current total mechanical energy of 80-kg skydiver whose speed is 70 m/s at an altitude…

A: solution as

Q: A 65 kg sprinter, starting from rest, runs 51 m in 7.0 s at constant acceleration. What is the…

A:

Q: How long will it take a 25 W machine to produce 438 J of work?

A: Power(p)= Work/Time So, Time = Work/Power

Q: A body does 26 Joules of work in What is it's power? 4 seconds.

A: Given data :                Work done    =    W                Time  Taken   =    t        To find :…

Q: . At the first stage of a roller coaster ride, the 1200kg roller coaster ends up 50 m above its…

A: Mass of the roller coaster(m)=1200kg Height(h)=50m

Q: How many watts of power does this car model have?

A: 1 Horsepower =746 Watt

Q: A body does 26 Joules of work in 4. seconds. What is it's power?

A:

Q: 20. How many kcal does a 155 pound man expend when he rides a Monarch bicycle ergometer at 150 Watts…

A: Given value--- power =150 Watt. time = 20 min. We have to find--- expend energy?

Q: what is horsepower

A: Horsepower is a unit of measurement used for Power. In layman terms, it is the amount of power an…

Q: 02 01 T2 T1 In the figure, if 0, = 02 = 0, then

A: Free body diagram:

Q: A body does 22 Joules of work in 5 seconds. Calculate the power ?

A: Given data:  Work (W) = 22 J Time (t) = 5 s Required: Power (P)

Q: energyy

A:

Q: Assuming that there are no heat effects and no frictional effects, find the kinetic energy of a…

A: Since there is no external force is acting on the body therefore we can apply energy conservation.…

Q: 450 kg racecar can go from 0 to 60 km/h in 10.0 s. What is the average 6. power is required to do…

A: Dear student The change in potential energy between two horizontal levels is defined as : ∆U = mgh…

Q: 1. Convert the info related to the specification and performance of the 718 cayman GT4above to SI…

A: Part 1. a. Maximum power = 414 hp  In SI unit 414 hp = 304290 W b. Speed in time 4.2 s = 0 to 60 mph…

Q: body Becond What jB jts power ? joules of work jm 9 do es 45

A: Given data :            Work  =  w           Time  =  t             To find  :                Power

Q: As a steel beam is winched up to the top floor of a new building, the mechanical energy is being…

A: The mechanical energy used to lift the steal beam helps it in lifting to top floor.

Q: 2. A ead slides without friction around a loop-the-loop. The bead is released from a heigh h=3.5 R.…

A: Given data, Height (h) = 3.5 R mass of the bead = 5 kg Let the speed of bead at point A = v m/s

Q: The maximum operational speed of the wind turbine, after which turbine is shut down, is called…

A: There exist several stages of power generation of a turbine for different wind speeds.

Q: What is the kinetic energy(in hpjof a 1,860 lb body traveling at 77 ft/sec.

A: Given data: Mass of the body, m=1860 lb velocity of body, v=77 ft/sec Our  question is to find the…