An electric heater is constructed by applying a potential difference of 120 V across a Nichrome wire that has a total resistance of 8.00 ohms. Find the current carried by the wire

Q: 4. Four small spheres shown in the figure below have charges of q = -3.00 nC, q2 = 2.40 nC, q3 = 5.3...

A: Working formula: Electric flux through a closed surface is given by ϕ=qencε0     ....(1) where qenc ...

Q: A 20 kg roller-coaster car is moving at 25.1 m/s along a straight horizontal track. What will its ki...

A:

Q: Motion along a Line with Constant Acceleration. A car is speeding up and has an instantaneous veloci...

A:

Q: In what situation is it better to use Coulomb's Law or Gauss' Law? How is Gauss’ Law related to Coul...

A: Coulomb’s law help to calculate force between two particle hence to define electric field. If there ...

Q: Task: Conservation of Energy Activity 5 of 5 Why does the ball eventually stop rolling? Imagine a ba...

A: A ball starts from rest from the top of a track . The initial position is marked as STARTNo energy i...

Q: Two charges q1 = +1.69 µC and q2 = +8.25 µC are separated by a distance of 18.50 cm. Point P is loca...

A: given data -                    q1 = +1.69 μC                    q2 = +8.25 μC                     r...

Q: The 15-pound block A is moving downward at a speed of 7 feet per second at any given time. 3 seconds...

A: First, we need to note that since the string of pulley near A is attached to the wall, any movement ...

Q: Absorption Diffraction only Diffraction and Reflection Refraction interference Answer Bank

A: Absorption - A  Diffraction only - C Diffraction and interference - D Reflection - E Refraction - B ...

Q: A sphere of mass 5.8 x 104 kg is suspended from a cord. A steady horizontal breeze pushes the sphere...

A:

Q: machine does 2500 J of work in 1 min. What is the power developed by the machine?

A: Given Work done W = 2500 J Time taken t = 1 min = 60 second 

Q: A pulse is sent down a rope that is tied to a wall. On which side of the rope will the pulse be refl...

A:

Q: Displacement vector A is 4.5 km, north. Displacement vector B is 3.0 km, 50° north of w ne resultant...

A: We know that here given that The displacement vector A= 4.5 km in the north and then displacement ve...

Q: A 73kg runner starts walking at 3.4 m/s [E] and begins to speed up for 6.0 s, reaching a final veloc...

A:

Q: Given data : Work done=20 Joule Displacement=5 m Calcualte force applied

A: Given data :- Work done W = 20 J Displacement d = 5 m

Q: The figure shows a container of mass m1 = 3.4 kg connected to a block of mass m2 by a cord looped ar...

A:

Q: Suppose that the four masses below are located at the vertices of a square. Calculate the moment of ...

A: Moment of inertia I = mr2 

Q: A body of mass M at rest explodes intò three two of which of mass M/4 each are thrown off in -1 and ...

A: Here, we calculate the given as follow;

Q: A car trvels 90 km/hr. what is its acceleration in 3hrs if it started from rest? Given: Asked; Fo...

A: Given: initial velocity u =0 km/hfinal velocity v =90 km/htime t = 3 hr   Asked: acceleration a=?  

Q: 2. The potential difference between two parallel plates of a condenser which are 0.4 cm apart is 450...

A: Given: The potential difference between plates is 450 V. The separation between plates is 0.4 cm.

Q: 5- If the average heat energy that reaches us from the sun per minute and in a vertical direction eq...

A:

Q: 1. An object's position as a function of time in one dimension is given by; x(t) = 3t2 – 0.5e0.7t + ...

A:

Q: Derive the formulas, make use of calculus ideas. Put FBD and Box the final answers

A:

Q: 3. An airplane trip involves three legs with two stop overs. The first leg is due east for 620 km, t...

A:

Q: Sam is shooting a 10 kg rock using a catapult. The posts are 2 m apart and have an unstretched elast...

A:

Q: Two progressive waves y1=Asin(2πλx−ωt)y1=Asin⁡(2πλx−ωt) and y2=Asin(2πλx−ωt−π2)y2=Asin⁡(2πλx−ωt−π2) ...

A:

Q: A 6-m long ladder has a mass of 13 kg, and its center of gravity is 2.4 m from the bottom along the ...

A:

Q: A weightlifter picks up a 826 N weight and picks it up to a height of 1.4 meters. It takes him 1.2 s...

A:

Q: A golfer is on a hill, 17 m above the ground. She hits a golfball from the hill at 11.7 m/s, 42° abo...

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for y...

Q: An elevator moves so that its velocity v at time t is given by the graph below. 1-

A: We have given here a velocity vs Time graph as 

Q: 6. State Newton's second Law of Motion and give example? one

A: Newton's second law of motion states that the force applied on a body is equal to the time rate of c...

Q: 5. Jupiter orbits the Sun with speed 2079 m/s at an average distance of 71 398 000 m from the Sun. I...

A: Given : Speed, V = 2079 m/s Distance, R= 71398000 m  Mass, M = 1.90 × 1027 Kg  Find : Angular moment...

Q: c) the rate at which energy is being stored in the capacitor ate = nW

A:

Q: If two balls are released simultaneously from the same height, which one will hit the floor first, t...

A: Here Suppose initial velocity = u Final velocity =v acceleration due to gravity=g Height of ball dro...

Q: The point charge ? is concentric with 2 spherical shells with radii ? and ?, and charges −2? and 3? ...

A:

Q: Our Sun is considered an "average" star. What is the average star really like? Explain. Could you go...

A: We can define an average star as:  An average star, or more properly, an intermediate-mass star, ran...

Q: I need help solving this question. A rocket starting from rest rises vertically and accelerates at a...

A:

Q: An object, whose mass is 0.640 kg, is attached to a spring with a force constant of 148 N/m. The obj...

A: Given data: Mass m = 0.640 kg Force constant k = 148 N/m Distance A = 0.150 m  

Q: In a two-dimensional tug-of-war, Alex, Betty, and Charles pull horizontally on an automobile tire at...

A: Magnitude of force with which Alex pulls, FA = 205 N Magnitude of force with which Charles pulls, FC...

Q: Auto companies frequently tests the safety of the automobiles by putting them through crash tests to...

A:

Q: 4. In figure D, Calculate a) the equivalent resistance of the entire circuit, b) the total current, ...

A:

Q: Free Fall. From ear level down the wishing well, a coin is dropped by Liza. The coin falls a distanc...

A: Given, y = 7.00 mspeed of the sound, v = 343 ms

Q: Advantages of optical fibre commu transmission line or co-axial cable transmission are d (a) low ban...

A: In optical fibers, light travels in the form of pulse. Normal light has a very low wavelength. Bandw...

Q: 0.5 →Y 0.67

A: here, 0.5=1/2 and 0.67 = 2/3

Q: 1013. An automobile starting from rest speeds up to 40 ft per sec with a constant acceleration of 4 ...

A:

Q: Two blocks are in contact on a frictionless horizontal surface. The blocks are accelerated by a sing...

A:

Q: he specific gravity of a liquid is 0.75. What height (in m) of that liquid is needed to provide a pr...

A: Given that                 The specific gravity of a liquid is 0.75.                   so the densit...

Q: The picture shows 3 paths along which we can move a negatively charged sphere X closer to a positive...

A:

Q: In the figure, block 1 of mass m, slides from rest along a frictionless ramp from height h = 2.6 m a...

A: First find velocity of block 1 at bottom. Then by applying conservation of momentum and using elasti...

Q: 1. A circular loop of radius 'R' carries a current '. At what distance 'y' along the axis of the loo...

A: Given: The current is I The radius of the loop is R. The magnetic field is one-half of the magnetic ...

Q: DATE: i.) Find the diestion of the given recto Measire the angle with Mspeect to the tx-axis coun te...

A:

Temperature Variance of Resistance

Electrical resistance or simply resistance is the property of a material that opposes the free flow of electrons through it. The total amount of resistance to the flow of charges (or current) is affected by many factors like the length of the conducting material, its cross-sectional area, resistivity, and temperature.