1. Calculate the total heat content of 10 kg of ice at - 23°C.?

2. How much heat is contained in 100 kg of water at 60.0 °C?

based on the creation of natural elements, what is most likely to be important to the modern iroquois culture?

if a sound wave has a frequency of 250 hertz and a length of 1.3 meters, what is the speed of the sound wave?

A marble is flicked off the edge of a table. The motion of the marble follows a parabolic path. Which is true about the motion of this marble? A. Only one continuous force is acting on the marble. B. Two continuous forces are acting on the marble. C.

Distinguish between the cell wall and the cell membrane in a plant

Refrigerant-134a enters the expansion valve of a refrigeration system at 160 psia as a saturated liquid and leaves at 30 psia. Determine the temperature and internal energy change across the valve.

When a sound wave first enters the auricle, which part of the ear does it travel through on its way to the eardrum? auditory nerve cochlea hammer ear canal

Isla made a diagram to compare X-rays and radio waves. A venn diagram with two intersecting circles. The one on the left is labeled x-rays and the one on the right is labeled radio waves.

What is the magnitude of electrostatic force of attraction between two alpha particles separated at a distance 5.3x10-11m? (1 apha particle = change of proton)

A block of material of volume 20cm³ and density of 2.5gcm³suspended from a spring balance with half of the volume of the block immersed in water. What is the reading of the spring balance?

What are changes in temperature, duration of daylight, and the presence of a predator all examples of? a. Behavior c. Stimuli b. Reflex d. Instinct