A point charge of -3. 00 μc is located in the center of a spherical cavity of radius 6. 90 cm inside an insulating spherical charged solid. The charge density in the solid is 7. 35 × 10^−4 c/m^3. Required:
a. Calculate the magnitude of the electric field inside the solid at a distance of 9.40 cm from the center of the cavity.
b. Find the direction of this electric field.

On a frictionless air track, a blue glider with mass 0.200 kg is moving to the right with a speed of 8.00 m/s. it strikes a red glider that has mass 0.600 kg and that is initially at rest. after the collision, the blue glider is moving to the left with a speed of 3.00 m/s.(a) what are the magnitude and direction of the velocity of the red glider after the collision? (b) is this collision elastic?

Did anyone do 1.06 lab: cloud formation i need with it i go to k12 lavcame i need to get it done quick

What is the quantity which is measured by the area occupied below the velocity- time graph?