A 1.43-kg steel ball is dropped from a plane to an ocean. If the  velocity of the ball just before reaching the water is 1.06 m/s and if the resistance in the water is 2.59v, what is the velocity of the steel ball 6 seconds into the water? Answer in four decimal

Q: External stimuli are communicated to the brain by means of electrical signals propagating along…

A: speed of electrical signals along nerve cells (v) = 34 m/s distance travelled by signal resulting…

Q: I have 72 lightbulbs in my house. 53 of these lightbulbs are 65 watt and the other 19 lightbulbs are…

A: Determine the energy used in 1 year by 53 bulbs of 65 watts as follows.

Q: A 1.73-kg steel ball is dropped from a plane to an ocean. If the velocity of the ball just before…

A: Given  data- m=1.73 kg Fw=1.9v Velocity of the ball just before reaching the water u=12m/s Using…

Q: Four light bulbs, rated at 100 W, 75 W, 50 W and 25 W each, are in parallel. What is the total power…

A: Given Data, Power of the four bulbs are = 100 W, 75 W, 50 W, 25 W

Q: In differential equation (Newtons 2nd law of Motion). Determine the limiting velocity of the body if…

A:

Q: A drop hammer weighing 40 kN is dropped freely and drives a concrete pile 150 mm into the ground.…

A: Weight of hammer: W = 40 kN = 40 x 103 N Distance covered in concrete pile: s = 150 mm = 150 x 10-3…

Q: Which of the following best describes drift velocity? a.The speed at which electrical signal…

A:

Q: A microwave oven has a power requirement of 1,255 W. A frozen dinner requires 4.2 min to heat on…

A: Given,

Q: A boat cruises 3 hours upstream with a current of 4kph. The return journey took two hours. To…

A:

Q: A standard computer has a power supply of 550 W, and many people just leave their computer on all…

A:

Q: Determine the amount of electrical energy (in Kw•hr) used by the following devices when operated for…

A: (1) Power,  P=1500 W   =1.5 kW Time,  t=5 min=560=0.0833 hr

Q: A 1.97 steelball is dropped from a plane to an ocean before reaching the water is 1.08m/s and if the…

A:

Q: An electric water heater consumes 5.00 kW for 2.00 h per day. What is the cost of running it for one…

A: Given: Power, P = 5 kW time,t =  2 hours Cost = 12 cents / kWh

Q: A lamp consumes 1000 J of electrical energy in 10 s. What is its power? L00

A:

Q: A 1.09-kg steel ball is dropped from a plane to an ocean. If the velocity of the ball just before…

A:

Q: (a) Number i Units (b) Number i Units (c) Number i Units > >

A: Please post the remaining questions separately!   Given:- f= +38 cm (focal length) u= -30 cm (object…

Q: What is the average amount of electricity used by a computer?

A:

Q: A steel ball of mass 3-kg is dropped from rest from the top of a building. If the air resistance is…

A: ball start falling down with free falling object in atmosphere but there is a air resistance so we…

Q: A 2-kg object falls from rest in a viscous fluid. The resistance from which is 0.36v. What is the…

A:

Q: The cost to operate a clothes dryer for a year is $80.25. If the rate for electrical energy is…

A:

Q: A microwave oven has a power requirement of 1,243 W. A frozen dinner requires 5.6 min to heat on…

A: The energy consumed by the oven can be obtained as E=Pt=1243W×1kW1000W5.6min×1h60min=0.116kWh

Q: A 2.13-kg steel ball is dropped from a plane to an ocean. If the  velocity of the ball just before…

A:

Q: An electron moving along the x axis has a position given by x = 15te-5t m, where t is in seconds.…

A:

Q: An electric water heater consumes 4.88 kW for 3.85 h per day. What is the cost (in dollars per year)…

A: In one day number of kWh used, 4.88×3.85=18.788 kWh

Q: Code: COFFEE. A single-core cable has a conductor diameter of 13.5 mm and insulation thickness of…

A: Given: diameter of cable d= 13.5 mmthickness of insulation t = 8.2 mmρ = 7.5*108 MΩ-cmL=14km

Q: if your household uses 430 kWh of electricity per month how many joules of energy are you using?…

A: Given Information:- Electricity used by the household is E=430 kWh.   Required:- We have to convert…

Q: Water flows over a section of Niagara Falls at a rate of 1.2 × 10^6 kg/ s and falls 50 m. How many…

A:

Q: 2 A student used a 9 kW shower for 20 minutes. Electrical energy costs S0.30 per kW h. What was the…

A: Answer (2)  Given  Power (P) = 9 KW  Time (T)  = 20 minute                 = (20/60) h  Electrical…

Q: An object weighing 1 kg is dropped from the top of a 300 m building with an initial velocity of 3…

A:

Q: ally contains 20 gal of water.What is the tank after 7 min ? When will there be 150 lb of salt in…

A:

Q: A 1-kg object falls from rest in a viscous fluid. The resistance from which is 0.445v. What is the…

A: Mass of the object m=1 kg and resistive force from fluid F=0.445v. Using this we can make a…

Q: External stimuli are communicated to the brain by means of electrical signals propagating along with…

A: As we know,speed is the ratio of distance travelled by time taken.

Q: The resistance of an electric heater is 80 Ω when connected to 120 V. How much energy does it use…

A:

Q: Which figure shows 2P→ - Q→?

A: → If we will draw 2P→ vector . Then magnitude of 2P→ will be double as compare to P→ .

Q: A lamp consumes 500 J of electrical energy in 20 sec. What is the power of the lamp?

A: Power of the lamp is calculated by the formula:   Power = Energy consumed per unit time   Power =…

Q: The electrical power, P (in watts), transformed by an electrical appliance is given by P = f(i) =…

A:

Q: the ground. Due to the combined ford resistance and gravity, it has a speed when it reaches the…

A: Givenh=500 mv=40 m/s

Q: A 10-watt energy-saving fluorescent lamp is designed to produce the same illumination as a…

A:

Q: In the figure below, find the side opposite of e ... 5.00 4.00 A 3.00 в) 6.40 1.00 4.90

A: In the given figure to find side opposite to θ.

Q: DATA Sor 5 -9.487 71.57 NoWar B-8.6020SofEasr EST 35.540

A:

Q: Using Microsoft Excel, plot a graph of Resistance on y-axis and 1/A on x-axis ], then find the…

A: Resistance is measure of how much the conductor resists or opposes the flow of charge. It is…

Q: stimuli are communicated to the brain by means of electrical signals propagating along nerve cells…

A: Given:- External stimuli are communicated to the brain by means of electrical signals propagating…

Q: A clock consumes 1.5 W of electrical power. How much energy does it use in each day?

A: In a day there are 24 hours, therefore, total time (t) in seconds will be,

Q: er question no.'s 9, 10 and 1

A: Given (9):-  It is the work done in moving a unit of positive electric charge from one point to…

Q: The drift velocity of mobile charge carriers in electric circuits is ____. a. very fast; less than…

A: Drift velocity of mobile electrons

Q: A wire of variable cross-section is given below. The relation between the drift speeds on the two…

A:

Q: A 1.9-kg steel ball is dropped from a plane to an ocean. If the velocity of the ball just before…

A: The mass of the ball, m=1.9 kg   The velocity before entering the water is, u=16 m/s   The…

Q: 114 km/h 52° E of N 78 km/h 33° N of E 14 km/h 37° W of S 98 km/h 42° N of E 135 km/h NW

A: The given vector and directions are given in the problem.

Resistivity

Resistivity is a characteristic property of the conductor’s material that measures the extent to which the material opposes the flow of current. It is denoted by the Greek letter “rho”. Electrical resistivity, also known as specific resistance, depends on the nature of the material of the conductor and is unaffected by its dimensions.