Amotorcyclist goes around a curve of 400-ft radius at a speed of 60.0 mph (note: stay
in b. e. to ft/s) (ignore the fact that a motorcyclist would lean
him/her upright for simplicity). what must the coefficient of friction between the tires and
the road be to make it through the turn? (reminder g= -32 ft/s) (ans. u= 0.605) think
about what rain or snow on the road would do to the coefficient of friction.

Electric charge is uniformly distributed inside a nonconducting sphere of radius 0.30 m. the electric field at a point p, which is 0.50 m from the center of the sphere, is 15,000 n/c and is directed radially outward. what is the maximum magnitude of the electric field due to this sphere

The energy released by a chemical reaction can be measured using a calorimeter. when barium hydroxide octahydrate crystals are reacted with dry ammonium chloride inside of a coffee cup calorimeter, the temperature of the 18.00 g of water in the calorimeter decreases from 30.0°c to 8.0°c. the equation for calculating energy absorbed or released by a reaction is: where q is the energy released or absorbed, m is the mass of water in the calorimeter, cp is the specific heat of water, and δt is the observed temperature change. if the specific heat of liquid water is 4.19 j/g·°c, how much energy was absorbed by the reaction?

The mantle is made up of which structural zones?