Newton's first law of motion states that question 8 options: acceleration is calculated by dividing the force exerted on an object by the mass of the object when a force acts on an object, its acceleration is in the same direction as the force when a force is applied on an object, there is an equal force applied by the object in the opposite direction an object will remain at rest or keep moving with a constant velocity unless a force acts on it

Find the magnetic field a distance r from the center of a long wire that has radius a and carries a uniform current per unit area j in the positive z direction.

Two 1.20-m nonconducting wires meet at a right angle. one segment carries + 2.50 µc of charge distributed uniformly along its length, and the other carries - 2.50 µc distributed uniformly along it, as shown in fig. 21.50. ( a. find the magnitude and direction of the electric field these wires produce at point p, which is 60.0 cm from each wire. ( b. if an electron is released at p, what are the magnitude and direction of the net force that these wires exert on it?

In which of the following would the particles move most rapidly? a. ice at -20 °c b. water at 20 °c c. steam at 110 °c d. boiling water e. ice at 0 °c