Answer:
wavelength: the distance between successive crests of a wave
frequency: the rate per second of a vibration constituting a wave, either in a material (as in sound waves), or in an electromagnetic field (as in radio waves and light)
electromagnetic energy is used for wifi, cell phones, microwave ovens etc.
the electromagnetic spectrum includes radio waves, microwaves, infrared radiation, visisble light, ultraviolet, xrays and gamma rays
the only part we can see is visible light
visible light can be characterised by the colours of the rainbow
the longest wavelength is red and the shortest is violet
when combined, the colour is perceived as white or beige
Answer:
false
Explanation:
if the mass is greater then its volume the object will sink due to density. Mass is almost the weight of an object.
<span>Lipids have long been used as lamp oil and along with candles were the main fuel for pre-industrial light sources. Whale oil was one of the main fuels harvested and fueled the 19th century whaling industry leading to widespread endangerment of various species. This practice is now outlawed except in a number of countries which mostly hunt whales for cultural purposes.</span>
Pitocin is a drug used to induce labor during pregnancy, oxytocin<span> is the main hormone component of the drug making the uterus contract. </span>Oxytocin in Pitocin <span>diminishes in the body system within a matter of minutes, it is administered as an injection. However, the drug can have numerous side effects on the heart and can also be considered risky for the baby; it is commonly used also in the process of abortion. </span>
