1. At 20.0°C, the carbon resistor in an electric circuit connected to a 5.0 V battery has a resistance of 2.0 x 1020. What is the current in the circuit when the temperature of the carbon rises to 80.0°C? (a = -0.5 x 10-31)
Q: As shown in the figure, a 4.0-kg block is moving at 5.0 m/s along a horizontal frictionless surface…
A: The objective of the question is to find the speed of the block when the spring is compressed to a…
Q: Need Help? mV Sascha Hahn/Shutterstock.com A helicopter (see figure below) has blades of length 3.40…
A: emf induced between the blade tip and center hub is 4.176 mVExplanation:
Q: A 100gram ball thrown vertically downward stricken the ground with a speed of 20m/s. It then…
A:
Q: T HOOK assuming that the hook is pulled straight downward and the system pictured what is an…
A:
Q: The population ratio between two energy levels ni nj separated in energy by: A E = E₁ - Ej with AE =…
A: The temperature is 1.39 KExplanation:Step 1:njni=exp(−kTEi−Ej)=exp(−kTΔE) Step 2:Solve the…
Q: Consider two magnetic fields B1 and B2, with components B1x = 0, B1y = 2ax, and B1z = 0 and B2x =…
A: Answer is given below with proper explanation.Explanation:Explanation -
Q: An eight-turn coil encloses an elliptical area having a major axis of 40.0 cm and a minor axis of…
A: Given : No. of turns of coil N = 8 a = 40/2 = 20 cm , and b = 30/2 = 15 cm…
Q: Consider the systemshown in Fig. P6.86. The ropeand pulley have negligible mass,and the pulley is…
A: Final Velocity (Vf) = 2.90 m/sExplanation:Step 1: Draw the figure. Step 2: Write all the given.…
Q: A railroad car of mass 2.10 × 104 kg. moving at 3.20 m/s collides and couples with two coupled…
A: Speed of the three coupled cars after the collision= 1.87 m/sExplanation:Approach to solving the…
Q: What is the SI equivalent of 34 rad? a. 0.008772 Gy O b.0.34 Sv O c. 0.34 Gy Od. 37,000,000,000 or…
A:
Q: A child of mass 40.0 kg is in a roller coaster car that travels in a loop of radius 7.80 m. At point…
A:
Q: 60.0° with the surface. It bounces off with the same speed and angle (see figure below). If the ball…
A: The average force exerted by the wall on the ball : Fx =224.3 NFY = 0 N Explanation:Step…
Q: A fusiform aneurysm bulges or balloons out an artery on all sides (pictured below). If this aneurysm…
A: Answer a) v2=0.1m/sAnswer b)ΔP=0.6574mmHgAnswer c)Option 1 Larger than Explanation:Explanation:
Q: An electronic package with a surface area of 1 m² placed in an orbiting space station is exposed to…
A:
Q: A crate of mass m 9.7 kg is pulled up a rough incline with an initial speed of v, 1.43 m/s. The…
A: As per request I will answer only part (e).Mass of object is Initial speed is Pulling force along…
Q: In the figure provided, an electron with speed v = 3.98×107 m/s travels between two parallel charged…
A:
Q: A cube of edge length = 2.40 cm is positioned as shown in the figure below. A uniform magnetic field…
A: Detailed explanation of this question is given below.Hope it helps you.If you still have any doubt…
Q: the weight, w, of an object varies inversely as the square of the distance, d, between the object…
A:
Q: Three uniform spheres of masses m₁ = 3.00 kg, m₂ = 4.00 kg, and m3 = 5.00 kg are placed at the…
A: FINAL ANSWER: Resultant gravitational force on the object of mass m2 is 8.34×10^-11i…
Q: The figure below shows a long straight wire just touching a loop carrying a current I₁. Both lie in…
A: a)According to the right hand rule, when the fingers (showing the direction of current in the loop)…
Q: A crate of mass m = 9.7 kg is pulled up a rough incline with an initial speed of v₁ = 1.43 m/s. The…
A: The mass of the crate is The initial speed of the crate is The pulling force is The angle of…
Q: q1= 2.0nC q2= 2.0nC
A: FINAL ANSWER: (A).we draw the free body diagram is shown in the figure. (B).The magnitude…
Q: 8. A force of 2 N stretches a spring by 10 cm. A mass of 0.2 kg is attached to the spring, and then…
A: The objective of the question is to find the equation of motion for a damped harmonic oscillator and…
Q: John's right eye has a near point distance of 0.21 m and a far point distance of 1.9 m. What percent…
A: Near point distance(n) = 0.21mFar point distance(f) = 1.9mDistance to the object(d) = 21% of the…
Q: A railroad tank car rolls on a track at 3.40 m/s toward two identical coupled tank cars, which are…
A: The objective of the question is to find the speed of the three coupled cars after the collision and…
Q: The second law of thermodynamics states that the entropy of an isolated system not in equilibrium…
A: The objective of the question is to verify the statement about the second law of thermodynamics and…
Q: Two cars collide at an icy intersection and stick together afterward. The first car has a mass of…
A:
Q: The resistors in the circuit below have the following values: R₁ = 7.20 £2, R2 = 7.00 £2, and R3 =…
A: a) The current through R3 = 1.06Ab) The power dissipated through R3 = 3.37WExplanation:Please see…
Q: Two resistors, R1 = 3.33 Ohms and R2 = 5.69 Ohms, are connected in series to a battery with an EMF…
A: I1 =2.66075 A V2 = 15.14 VExplanation:
Q: the shortest distance in which a motor car travelling at 100km/h on a level road can be bought to…
A:
Q: Find the charge on the capacitor in an LRC-series circuit at t = 0.05 s when L = 0.05 h, R = 12, C =…
A:
Q: The battery shown in the circuit below has AV = 10.0 V, resistors R₁ = 8.44 kQ2, R2 = 8.52 kQ, and…
A: The resistances are R1 = 8.44 kΩ R2 = 8.52 kΩ R3 = 7.69 kΩ Voltage ∆V = 10 V
Q: 5. If you want to turn mechanical energy into electrical energy to power the lights in your home,…
A: The task is to turn mechanical energy into electrical energy to power the lights in your home
Q: A single-coil loop of radius r=6.700mm, shown below, is formed in the middle of an infinitely long,…
A:
Q: Plz solve all parts Will definitely upvote
A: The objective of the question is to find the electric potential at a point P, a distance z from the…
Q: (a) What is its kinetic energy at this moment? (b) Find the net work done on the object if its…
A: Please refer below page.If you have any doubts please feel free to ask.Explanation:Step 1: Step 2:
Q: A 10.0-kg block is released from rest at point in the figure below. The track is frictionless except…
A: coefficient of kinetic friction is 0.38Explanation:Hence, coefficient of kinetic friction is 0.38…
Q: Compute the velocity of light in periclase (MgO), which has a dielectric constant & of 3.03.
A:
Q: In the figure, a 4.1 kg block is accelerated from rest by a compressed spring of spring constant 660…
A:
Q: A golfer encounters two different situations on different holes. On the second hole they are 150 m…
A: a. 31.91 m/sb. 36.87 m/sc. second hole: y=0.5774x−0.0064x2, fourth hole:…
Q: Homework 5 Problem 3: The engine of a large ship does 1.8 × 108 J of work with an efficiency of…
A: The objective of the question is to find out the amount of heat transferred to the environment and…
Q: 3. Three projectiles (A, B, and C) are launched with different initial speeds so that they reach the…
A:
Q: 3. Consider the following circuit. The switch is closed for a long time and then opened at time t =…
A:
Q: In the figure below, a long straight wire carries a current of 2.30 A. d
A: Current in straight wire = I1 = 2.30 ASide of square loop = l = 6.43 cm = 0.0643 mDistance of center…
Q: A copper wire has a resistance of 0.375 2 at 20.0\deg C, and an iron wire has a resistance of 0.400…
A:
Q: The electric field of an electromagnetic wave in a vacuum is Ey (17.0 V/m) cos((2.78 x 10³) - wt).…
A:
Q: 3. The physical pendulum. (a) In class, we derived the formula for the frequency of the physical…
A: The objective of the question is to derive the formula for the frequency of a physical pendulum and…
Q: The acceleration of a particular sports car is proportional to the difference between 250 km/h and…
A:
Q: A long solenoid that has 920 turns uniformly distributed over a length of 0.390 m produces a…
A: The current required : I = 33.7 mAExplanation:Approach to solving the question:Detailed…
Q: Problem 4 A sphere of mass M and radius R, with uniform mass per unit volume, can roll without…
A:
Unlock instant AI solutions
Tap the button
to generate a solution
Click the button to generate
a solution
- 3. The resistance of a uniform copper wire 50.0 meters long and 1.15 mm in diameter is 0.830 ohms at 20° C. What is the resistivity of the copper at this temperature? 4. A 200 m long aluminum wire has the same resistance and cross-sectional area as a carbon wire. What is the length of the carbon wire?1. A voltmeter has an internal resistance of 500 kilo-ohm. Determine the voltage drop across the voltmeter when a 10 ampere current passes through it. 2. What is the resistance of copper wire that has a length of 1 kilometer and a diameter of 0.505 mm? 3. An aluminum wire has a resistance of 80 ohms at 30 degree Celsius. Determine its resistance when its temperature is lowered to –10°C.1. The variation in electrical resistance with temperature can be used to make precise temperature measurements. Platinum is commonly used since it is relatively free from corrosive effects and has a high melting point. Suppose at 20.0°C the resistance of a platinum resistance thermometer is 164.2 2. When placed in a particular solution, the resistance is 187.4 2. What is the temperature of this solution?
- 2. A 50 m long wire with a cross-sectional area of 5.5 mm2 has a resistance of 31 Ω at 0 °C. Calculate the resistivity of the wire at 60 °C if the temperature coefficient of resistance at 0 °C is 0.0003 per °C.1. A wire 300 m long has a resistance of 1.18 Ω and a cross-sectional area of 14 mm2. Of what material is the wire made? 2. A 50 m long wire with a cross-sectional area of 5.5 mm2 has a resistance of 31 Ω at 0 °C. Calculate the resistivity of the wire at 60 °C if the temperature coefficient of resistance at 0 °C is 0.0003 per °C.1. The resistivity of gold is 2.44 × 10-8 2. m at room temperature. A gold wire that is 0.9 mm in diameter and 14 cm long carries a current of 940 mA. What is the voltage across the wire?
- At 20°C, the carbon resistor in an electric circuit connected to a 3.5-V battery has a resistance of 2.1 x 10² . What is the current in the circuit when the temperature of the carbon rises to 79°C? X 10.171At 20°C, the carbon resistor in an electric circuit connected to a 6.0-V battery has a resistance of 2.6 x 102 n. what is the current in the circuit when the temperature of the carbon rises to 73°C?3. For carbon; P20°c = 3.5 x 10-50-m and a = -5.0 x 10-4/°C. a) At what temperature does a carbon resistor have a resistance of 995 02, if it has resistance of 1000 at 20°C? Assume negligible thermal expansion/contraction. b) What is the conductivity of carbon at the new temperature? c) How does a negative temperature coefficient of resistivity affect the conductivity of a material?
- 3. What will be the resistance of a copper wire that has a radius of 2 cm and length of 100 cm? The resistivity of the copper wire is 1.7x10^(-8) ohm.meter? a. 400 b. 500 c. 600 d. NONE OF THE CHOICES 4. Calculate the temperature of a wire if its resistance is increase to 200 ohm from 150 ohm at 25 degree Celsius. The temperature coefficient of the wire is 0.0225 per degree Celsius. a. 46.28 b. 26.48 c. 84.26 d. NONE OF THE CHOICES 5. Find the current rating of a defibrillator that can pass electric charge at 200 mA at 0.127 seconds. Calculate also the number of electrons on that particular time. a. 2.57 A and 125 electron b. 5.57 A and 1250 electron c. 7.57 A and 12500 electron d. NONE OF THE CHOICES Please don't write in a paper. I can't understand handwritten well.At 20°C, the carbon resistor in an electric circuit connected to a 5.0-V battery has a resistance of 2.0 × 102 Ω. What is the current in the circuit when the temperature of the carbon rises to 80°C?5. How many free electrons are there in a rectangular block of a conductor whose dimension is 8 m by 4 m by 3 m? The electrons of this conductor have a drift velocity of 4 m/s when a 9.6 A of current is applied thru a cross-sectional area of 0.005 m?. Use electronic charge of 1.6 x 10-19 coulomb per electron. Express your answer in scientific notation whose unit is electrons per cubic meter.