How many kilowatt hours does it take to lift an apple that weighs 100g 1 meter.(use 9.8 kg
m/s2 for the force of gravity)

The answer to your question is   Power = 0.98 W  or 9.8 x 10⁻⁴ kW

Explanation:

Data

Power = ?

mass = 100 g = 0.1 kg

distance = 1 m

gravity = 9.8 m/s²

Formula

Power = Work / time

Process

1.- Calculate the Work

      Work = Force x distance

      Force = mass x gravity

      Work = mass x gravity x distance

      Work = (0.1 kg)(9,8)(1)      

      Work = 0.98 J

2.- Calculate the power

       Power = 0.98 J / 1 h

       Power = 0.98 W  or 9.8 x 10⁻⁴ kW

the equation that correctly represent the reaction for formation of ammonia is

n2+ 3h2 → 2nh3 (answer d)

1 mole of nitrogen gas (n2) react with 3 moles of hydrogen gas (h2) to form 2 moles of ammonia ( nh3). this is in a process known as haber process were iron is used as a catalyst and reaction take place that a higher temperature and pressure. the process is exothermic hence energy is released.

i wish i could but this one is weird give me abc and i can solve it.