jupiter has a mass of 1,898,000,000,000,000,000,000,000,0 00 kg. How would this number be expressed in scientific notation?

If the speed of a particle triples ,by what factor does its kinetic energy increase?

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?

Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz.