A toy race car races along a circular race track that has a radius of 24 meters. The race car starts at the 3-o'clock position of the track and travels in the CCW direction. Suppose the car has swept out 2.15 radians since it started moving.

The racecar is how many radius lengths to the right of the center of the race track?

radius lengths

The racecar is how many meters to the right of the center of the race track?

meters

The racecar is how many radius lengths above the center of the race track?

radius lengths

The racecar is how many meters above the center of the race track?

meterss

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?

Which diagram correctly demonstrates the various forces acting on a ball moving horizontally with some speed?

Aparticle of mass m is placed in a one-dimensional box of length l. the box is so small that the particle’s motion is relativistic, so that e p2/2m is not valid. (a) derive an expression for the energy levels of the particle using the relativistic energy–momentum relation and the quantization of momentum that derives from connement. (b) if the particle is an electron in a box of length l 1.00 1012 m, nd its lowest possible kinetic energy. by what percent is the nonrelativistic formula for the energy in error?