What is a magnetosphere? a. the layer of a planet in which its magnetic field is generated b. a region of space around a planet in which the planet's magnetic field can trap charged particles c. the uppermost layer of any planetary atmosphere d. the region in a planet's atmosphere where aurorae occur?

Determine the change in width a, height b, thickness t when a plate is subjected to the uniform distributed load and is made of material having modulus of elasticity e=230 gpa and poisson's ratio ν=1/3. given : a=400 mm and b= 300 mm also the uniformly distributed load in downward y direction of plate is 2 mn/m and in the positive x direction is 3 mn/m and t=20 mm

Ahanging spring stretches by 35.0 cm when an object of mass 450 g is hung on it at rest. in this situation, we define its position as x = 0. the object is pulled down an additional 18.0 cm and released from rest to oscillate without friction. what is its position x at a moment 84.4 s later? express your answer in cm.

Glass has a hardness that is in the middle of the hardness scale. what is the hardness of glass?