HS: Physics BIM (Hlex) 7 1. Temperature and Heal 5. How much heat is required to raise the temperature of 0.25 kg of water from 20°C to 30°C?
2.87 103]
1.05 x 104 )
2.23 x 105]
1.76 X 106]

If gases like carbon dioxide and methane make up less than 1% of the total atmosphere, why is it important for scientists to monitor changes in percentages of these gases?

Aresistor with an unknown resistance is connected in parallel to a 9 ω resistor. when both resistors are connected in parallel to an emf source of 21 v, the current through the unknown resistor is measured with an ammeter to be 4 a. what is the resistance of the unknown resistor? answer in units of ω.

Photons with the highest energy have the longest period