Three point charges are located at the corners of an equilateral triangle, as shown in Figure P23.7. Calculate the net electric force on the 7.00-μC charge.

Q: Why it is dangerous to stand near the railway track when a train is moving with high speed.

A: According to Bernaulli theorem P + (1/2)ρv2 + ρgh = constant  P is pressure v is velocity  ρ is…

Q: Calculate the drag of a certain wing with an area of 20 sq. meters , velocity of 75 m/s at an…

A:

Q: Discuss what happens when a man fires a pistol in front of a flight of stairs in a large hall.

A: There will be an extended-pulse echo produced.

Q: How much work is done lifting a 20 pound object from the ground to the top of a 50 foot building if…

A: Weight = 20 pounds Weight per foot = 2.5 lb/ft Height = 50 ft Workdone, W = ?

Q: a force of 5 punds compresses a 15 inch spring a toatl of 3 inches how much work is done in…

A: Given data The magnitude of the force is Fs = 5 pounds The compression in the spring is x = 3 inch…

Q: Determine the total work

A: Given data:     The force supplied by a motor is: F The distance of the load moved is: d The total…

Q: The spring of a spring balance is 10 cm long when there is no weight on the balance. The spring is…

A: Given: initial position of the spring balance (x1) = 0.1 m final position of the spring balance (x2)…

Q: Calculate the work done in N.m if a force of 18 N pushes a mass 5 kg by 8 meters.

A: Assume that the direction of force and the direction of displacement are the same. Work done by the…

Q: Certain force acting on a 20 kg mass ch.urlyc its velocity from 5 m/s to 2 m/s. Calcukate the work…

A: Introduction :  In this question we are provided it value of mass , initial velocity and final…

Q: Blocks A and B have a masses of 200 kg and 240 kg , respectively. (Figure 2) The coefficient of…

A: Concept used: A vector can be split into horizontal and vertical components.  An object has to…

Q: An object has its velecity increased by a factor of two, the kinetic energy is increased by a factor…

A: Let the mass of the object = m Let the initial velocity = v

Q: Question   a) A satellite of mass m = 3.6kg orbits the Earth 300km ab ove the Earth's surface. How…

A: Given, A satellite of mass m=3.6kg orbits in a radius of 300km above the Earth's surface.

Q: satellite is held in orbit by a 1000-N gravitational force. Each time the satellite completes an…

A: Gravitational force (F) = 1000 N Circumference (L) = 80000 km

Q: A 50 kg. diver gets ready to dive from a 10 meter high diving board. how much gravitational…

A: Given that,Mass of diver : m = 50 (kg)Height : h = 10 (m)Here we need to find the potential energy…

Q: Using eneray belane for d closod syateom chod cioleel Jor madels and negleting chenses in kinetic…

A: Solution:-Given thatmass of air (m)=0.2 kgIsochoric processInitial temperature (T1)=300 KFinal…

Q: The reservoir is filled to a depth of 5 ft, and the water is to be pumped to thesame level as the…

A: No work is done if the water is to be pumped to the same level as the top. Now,Work done(W)…

Q: A pump on the ground floor of a building can pump up water to fill a tank of volume 30 m3 in 15 min.…

A: We have,            Volume of water=30 m3         t=15 min=15×60         t=900 s   h=40 m   n=30%

Q: Use conservative and non-conservative force to create a simple story.

A: Work done by conservative forces depends primarily on the initial and final points. Forces that are…

Q: (a) A wind farm with 50 turbines generates 17 MW of power when the wind speed is 46 km/hr. If the…

A: Number of turbines,  Power generated by the wind farm,  Speed of the wind,  Diameter of the blades,…

Q: The switch in the circuit shown in (Figure 1) has been closed for a long time, and the current…

A: So we have given a circuit in which there are two resistances, a voltage or battery and a…

Q: A 50 kg. diver gets ready to dive from a 10 meter high diving board. how much gravitational…

A: The mass of the diver is given as, m=50 kg. The height of diving bored from ground is given as, h=10…

Q: Given: The energy equivalent of one gallon of gasoline is 1.3 x 10° J. A compact car has a mass of…

A: Given: The energy equivalent of one gallon of gasoline is Ee,gasoline=1.3×108 J/gal, The mass of…

Q: ric output power (kW) wit

A: Blade Chord is 0.2m long.Radius is 2.5mWind speed is 12 m/sAir density is 1.2 Kg/m3

Q: please work on it better

A: A gas expands from a volume of 1.0L to 3.5L at a constant pressure of 7.5atm.The gas is then cooled…

Q: Suppose that 4 J of work is needed to stretch a spring from its natural length of 34 cm to a length…

A:

Q: Assuming running consumes 108 calories per mile. If you run 9 minute miles, what is your average…

A:

Q: How much work must a 1000kg truck must produce to drive a 178km highway if an average force of 464N…

A:

Q: A partiche in releand from to b of buildry. After I secanothee partiche is releond fam pt 35m below…

A: Assume the height of the building to be H and the time taken for the particle A to reach the ground…

Q: w much work is done by a force of 10 N in moving an object through a distance of 1 m in the…

A: Given F=10 N S=1m When Force acts in the direction of displacement.   W=FS Where F=force…

Q: Calculate the kinetic energy and potential energy of a 600 kg car up hill at 20 meters and is runnin…

A: kinetic energy = 12mv2 potential energy = mgh

Q: A coal power plant has a rated output of 150 MW and a first law efficiency of 41%. Coal has an…

A: Given information: The energy density of the coal (C) = 24 MJ/kg The power output of the power plant…