Gigs 4 The density of hydrogen at room temperature and pressure is approximately
0.08 kg/m². The density of air is 1.205 kg/m3. What is the difference in volume
between 0.2 kg of hydrogen and 0.2 kg of air?

what was the acceleration of the 2 kg cart?

⇒ 16.0 cm/s2

what was the acceleration of the 4 kg cart?

⇒ 8.1 cm/s2

what was the acceleration of the 6 kg cart?

⇒ 5.3 cm/s2

answer:   you might love summer weather, but you don’t want it to feel like the sun is inside your car. but a hot car that just won’t seem to cool down might be a bigger of a problem than you think. your car relies on being at the right temperature.

explanation:

pe = weightxheight = 2000x1000=2,000,000joules

5 w for 1hr = 5x60x60 joules=300x60=3000x6=18,000j as total energy conversion. efficiency of bulb needed for radiant to thermal within 18000