Is an 80 dB sound twice as loud as a 40 dB sound? Explain.

An object which has a mass of 70 kg is sitting on a cliff 10 m high. Calculate the objects potential energy. Given g=10m/s^2

A waitperson carrying a tray with a platter on it tips the tray at an angle of 12° below the horizontal. If the gravitational force on the platter is 5.

6. If a person pushes a cart with a force of 40 N and it accelerates at 0.5 m/s2, what is the mass of the cart? a. 80N b. 80 kg C. 20 N d. 20 kg

The three main domains of child development are physical, blank, and psychosocial

Figure 3: Binding Energy vs. Mass Number 1. What would release more energy during a fusion reaction: two HP atoms fusing to He or two Li® atoms fusing to C^2? Explain. The energy that would release more fusion reaction

An advertisement uses a movie star holding a bottle of perfume. This ad is an example of which of the following? A. an appeal of association. B. an appeal to reason. C. an appeal to economics. D. an appeal to patriotism.

An example of an unbalanced force is

When the atom's electrons step down to lower energy levels in a thin cloud of hot gas, what is produced?

Which is the relationship between algae and fungus? Options: Parasitism. Commensalism. Mutualism.

Photosynthesis is an endothermic chemical reaction that forms sugars from carbon dioxide, water, and the sun's energy. Which of the following must be true of photosynthesis?