Who invented the light emitting diode what purpose does it serve

A single-turn circular loop of wire of radius 5.0 cm lies in a plane perpendicular to a spatially uniform magnetic field. During a 0.02500.0250-/text{s}s time interval, the magnitude of the field increases uniformly from 200 to 300 mT.

Why is it cheaper for a farmer to produce a pound of grain than a pound of meat

What is used to generate interference patterns in order to produce a hologram? shadows spectrometers lasers prisms

Why are there many butt limited combinations of elements that make compounds

Which of the following elements do living things have that volcanic rocks don't have? A) Oxygen B) Silicon C) Magnesium D) Carbon

Under what condition (s) will an object be in equilibrium? Notice that equilibrium in physics has a broader definition. (A) Only if it is moving with constant velocity. (B) Only if it is at rest.

If a pressure gauge measure an increase in 3*10^ (5) Pa on an area of 0.7 m^2, calculate the increase in the force applied to the area?

Which of the following is an example of potential rather than kinetic energy? a. water rushing over Niagara Falls b. a molecule of glucose c. a crawling beetle foraging for food d. light flashes emitted by a firefly

If a force of 15 newtons [N] is applied to a surface and the pressure is measured as 4,000 pascals [Pa], what is the area of the surface in units of square milimeters [mm2 ]?

An engineer has the task of producing an aluminum alloy with a density of 3.0 grams per cubic centimeter. She comes up with the perfect alloy and saves a sample of it. Which mass and volume measurements correspond to this sample? 7 g and 2.