What is haopening to the speed and acceleration as a car travels from rest to 72 km/hr in 4.0 seconds?

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 frequencies refer to the sample data collected from a population of interest when performing a hypothesis test comparing two or more population proportions.

If an electric circuit is not grounded it is best to reach out and touch it to provide the ground a.true or b.false