How do scientist determine the the number of iso types?

Which describes how a simple machine can make work easier? a.) it magnifies the kinetic energy so that the potential energy is greater b.) it magnifies the potential energy so that the kinetic energy is greater c.

Describe the relationship between wavelength and enegry.

X (t) = (20-4t^2) m, then what its average velocity in between t=0 and t=2sec?

Multiply 0.00032 cm by 4.02 cm and express the answer in scientific notation

Which best describes why a physical change differs from a chemical change? A. A physical change predicts the behavior of a substance when in a reaction, whereas a chemical change is used to identify characteristics of a substance. B.

How much would a 100kg man weigh on the surface of the sun where the acceleration is 274 m/s

How much current is in a circuit that includes a 9 - volt battery and a bulb with a resistance of 12 ohms?

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?