How do experts determine if a new element has been discovered?

Suppose your family complained that the music you play in your room is too loud. what could you do to reduce the amount of sound they hear?

According to the report by the Center for Disease Control, which statement is not true about the majority of the nation's youth? A. They are inactive. B. They are unfit. C. They are overweight. D. They are underweight.

Convection is a means of heat transfer that involves fluids, such as liquids or gasses. The process of convection is responsible for air and water currents as in the illustration.

According to the law of conversations of mass

Choose the best answer to the of the following. Explain your reasoning with one or more complete sentences.

Find the current Voltage VD and current ID in the following circuit assuming (a) ideal diode. (b) Constant voltage drop model with Von = 0.75V (c) using the exponential model (I_0=1*10^ (-14)). Verify your results through Multisim simulation

Suppose two stars are located in region a of the h-r diagram shown in the figure below. Star X appears much dimmer that Star Y as seen from Earth. Which Star can be inferred to be nearer to Earth, and how do you know?

A student examining a joint observes collagen-rich connective tissue fibers linking the bones, but finds no synovial cavity. Which structural classification fits the observed joint?

How to identify additional materials

Tarzan runs at 6 m/s and grabs a vertical vine (negligible mass) 4.1 m long which is tied to a tree at the top. Tarzan swings up. Determine the maximum height Tarzan will swing up and the angle the vine makes respect to vertical.