If your normal weight is 850 Newtons, but while riding up the school elevator you find you weigh 910 Newtons, what is the acceleration of the school elevator?

Useful Equations
Force= mass*acceleration
Force of gravity (weight)= mass*gravity
gravity= 10 m/s^2

The first law of thermodynamics states that heat added to a system is neither created nor destroyed but is transformed ⇒ as it changes into other forms of energy.

6–55 refrigerant-134a enters the condenser of a residential heat pump at 800 kpa and 358c at a rate of 0.018 kg/s and leaves at 800 kpa as a saturated liquid. if the compressor consumes 1.2 kw of power, determine (a) the cop of the heat pump and (b) the rate of heat absorption from the outside air.

Transfer chemicals from one location to another to weather objects. a-water b-physical weathering c-chemical weathering