Q - Explain the effect of Earth's gravity on objects on the surface of Earth.

A - Gravity pulls objects toward Earth at a rate of 9.8 m/s2. Weight is the result of gravity's pull on a mass on Earth's surface.

In science, Bob learns that the energy of a wave is directly proportional to the square of the waves amplitude. If the energy of a wave is 4 J, what should he predict as the amplitude of the wave?

A closed system of mass 10 kg undergoes a process during which there is energy transfer by work from the system of 0.147 kJ per kg, an elevation decrease of 50 m, and an increase in velocity from 15 m/s to 30 m/s.

How could sea level rise affect our lives here in the Bay Area?

Which term describes an advantage of wind energy? A. Expensive B. Nonrenewable C. Unreliable D. Abundant

When energy from the Sun reaches the air above land, the air warms and rises. Along a coastline, cooler air above the ocean flows towards land to replace this rising air. What types of heat transfer are taking place during this process?

A container, partially filled with water, is resting on a scale that measures its weight. Suppose you place a 200 g piece of wood inside the container filled with water. What happens to the scale reading?

Which is the best analogy of a wave? -A wave is like building a ramp. -A wave is like shaking a hand. -A wave is like water rippling in a pond. -A wave is like knocking down a building.

you can produce a sound by plucking a string or by blowing in a pipe. how are these two ways of producing sound are similar

What would provide specific information about the materials in the equipment used in a certain experiment

The wavelength of sound wave is 30 m. Frequency is 7 Hz. What is the wave speed