Magnesium and sulfur Ionic or covalent?

What speeds up condensation

Given that the specific heat of water is 4.18 kJ / (kg·°C), how much heat does it take to raise the temperature of 3.5 kg of water from 25°C to 55°C?

Anytime a scientific theory is challenged does it mean that its not a good theory

Two small children decide it would be fun to toss a couple of large cats at each other. Cat A (7kg) is thrown at 7m/s and cat B (6.1kg) is thrown at 2m/s. When they collide the cats stick together. How fast is the cat mess going after the collision?

Compared to yellow light, orange light has A. a different polarization. B. a longer wavelength. C. a faster wave velocity. D. the same frequency.

When blue light of wavelength 450 nm falls on a single slit, the first dark bands on either side of center are separated by 45.0

An object is moving east, and its velocity changes from 65 m/s to 25 m/s in 10 seconds. Which describes the acceleration? 4 m/s2 in negative acceleration 4 m/s2 in positive acceleration 9 m/s2 in positive acceleration 9 m/s2 in negative acceleration

Two students walk in the same direction along a straight path at a constant speed-one at 0.90 m/s and the other at 1.90 m/s. •How far would the students have to walk so that the faster student arrives 5.50 min before the slower student? A.) 460s B.

During the process of accretion, each planet-in-the-making, or proto-planet, grew in size and mass. The amount of gravity for the proto-planets is best represented by which graph?

Theories and Laws. • How are they alike? • How are they different? • Can you explain why scientific theories will change over time? • Give an example of a scientific theory that has changed.