How are sound waves different from light (and other electromagnetic, waves?

Does dna have a positive or negative charge?

Train cars are coupled together by being bumped into one another. Suppose two loaded train cars are moving toward one another, the first having a mass of 260000 kg and a velocity of 0.

When drawing a Bohr diagram for a hydrogen atom, if the element is in the 4th excited state how many energy shells would you draw?

Label each of the following measurments by the quantity each represents a. 5.0 g/mL g. 500m^2 b. 37 s h. 30.23 mL c. 47 j i 2.7 mg d. 39.56 g j. 0.005 L e. 25.3 cm^3 k. 2000.5 kg f. 325 ms l. 63.5 km/h

What is the impulse of a 3kg object that speeds up from rest to 20 m/s

What can cause sediment to form on land? Only mechanical weathering rocks Only biological weathering rocks Any kind of weathering or rocks Melting of rock in the core

The speed of a car is decreasing uniformly from 35 m/s to 15 m/s in 4 s the magnitude of the car's acceleration is

An object that has kinetic energy must what?

A student measures the length and width of a rectangle to be 40.7 cm and 0.599 cm, respectively. Wanting to find the area (in cm2) of this rectangle, the student multiplies on a calculator and obtains a result of 24.3793.

A red apple is illuminated by green light. what color will the apple appear as?