36. In a thundercloud, there may be electric charges of +40.0 Cnear the top of the cloud and -40.0 C near the bo ttom ofthe cloud. These charges are separated by 2.00 km. What isthe electric force on the top charge?

Q: A 1.90-m-long barbell has a 21.0 kg weight on its left end and a 32.0 kg weight on its right end. If...

A: Click to see the answer

Q: Consider an object of mass m = 4 kg on a frictionless table. The object experiences a repulsive forc...

A: Given value:Mass of the object, m = 4 kgRepulsive force, F = a/x2 + b/x

Q: An object of mass M hangs on a massless string of length 0.500 m attached to the ceiling. The object...

A: Figure shows the given question,

Q: Are my calculations right? I never used sin or theta before.

A: Click to see the answer

Q: A solid 0.7350-kg ball rolls without slipping down a track toward a loop-the-loop of radius R 0.8950...

A: Let va be the speed of the ball at height H, vb be the speed of the ball at lowest point. R be the r...

Q: Two very long wires are parallel to each other separated by a distance d.  The same current flows th...

A: (a) The direction of magnetic field due to a current carrying wire is given by Maxwell’s right hand ...

Q: What is the principle of an electromagnet?

A: In contrast to a magnet which produces magnetic field on its own, an electromagnet is a type of magn...

Q: A brick of mass m = 78 kg slides along a horizontal surface. The coefficient of friction between the...

A: Since the brick has an initial speed in the positive x – direction, Therefore, the frictional force ...

Q: 9-9 CHAPTER 9 Work and Kinetic Energy 23. In Example 9.9 in the textbook, a compressed spring with a...

A: Click to see the answer