Un fir, de sectiune S = 5 mm patrati si lungime L0 = 32 cm, este intins de o forta. Stiind ca E = 3 * 10 la put 7 N/m patrat, sa se calculeze constanta elastica k a firului.

1. Who makes up the 538 Electoral College Votes?

Do sound waves must have a medium to travel but elctromagnetic waves cannot

One example of power from a non-renewable resource, that has less of an effect on the environment than burning fossil fuels, would be geothermal power. hydropower. nuclear power. wind power.

What is a chromosome made of?

A neuron transfers information in the form of an electrical impulse. a. True b. False

Some lactic acid in the muscles dissipates during.

When two waves undergo complete, constructive interference, which of the following increases? A. speed B. amplitude C. wavelength D. frequency

Pressure = Force Area The formula above shows how pressure relates to force and area. For example, the pressure exerted by a fluid is equal to the force of the fluid divided by the area over which the force is applied.

1. Most waves are caused by vibrations. What motion in a transmitting antenna causes the vibrations that produce radio waves? 2. Name two common household appliances that produce electromagnetic waves other than radio waves.

A 3.70 kg block moving 2.09 m/s right hits a 2.42 kg block moving 3.92 m/s left. Find the total momentum of the system.