Category: Physics

How do trees react? Trees, like all plants, soak up carbon dioxide from the air with the help of light and, in the process, release water and oxygen. This means that trees have to have a way to control how much water they lose as they take in carbon dioxide, or they will dry out. […]

How much does one person spend on food per month UK? What’s the average food bill per person UK? The average spend on food per person is £40.30 per week (£175 per month), including groceries and eating out—across all ages and genders. The average weekly food shop for 1 is £26.5 in the UK, plus […]

What does PPF mean in texting? PPF — Past, Present, Future. What does PFF stand for? Pro Football Focus What does PPF stand for in safety? Have you ever heard the term paint protection film (or PPF) as it relates to an automobile? Paint protection film, also referred to as clear bra or a “wrap”, […]

How old are Tim and Lex Jurassic Park? around 11 and 8 years old How old is Lexi in Jurassic Park book? Alexis Murphy is first seen in the novel coming out of a helicopter with her older brother, Tim Murphy. Grant guessed she was no older than eight years old. Did Lex die in […]

What happens when you let a vampire in your house? If the vampire is invited in, the barrier magically disappears, and if the owner dies or is killed, the house will no longer have an invitation barrier so long as the house’s ownership doesn’t revert to another person, such as if it’s left to a […]

Which acid is present in toilet cleaner? Hydrochloric acid What is toilet cleaning acid? The best toilet bowl cleaner I’ve come across in these situations is muriatic acid. This is a very powerful chemical that should be used with great care and respect. However, when this acid contacts lime and other hard-water deposits, it rapidly […]

How many tides are there on Earth? two tidal How many tides do most places have each day? two high tides Why is there only one tide in some places? Also, the moon’s orbit around the Earth is tilted by about 5 degrees from the plane of Earth’s orbit around the sun. Thus, the maximum […]

How do you prevent wheel bearings from failing? General Recommendations Work with clean tools in clean surroundings. Always choose the correct grease. Always be sure to check the contact surface for the seal lip. Never use a hammer to hit directly on the bearing. Do not try to set clearances on Hub units. Do not […]

What does it mean when your car temperature gauge goes up and down? The main reason why car temperature gauge goes up and down while driving is because something is not working properly in your car’s cooling system. It could be the radiator fan, water pump, thermostat valve, coolant, or the gauge itself. To fix […]

How do scientists date trees? Dendrochronology (or tree-ring dating) is the scientific method of dating tree rings (also called growth rings) to the exact year they were formed. A tree’s growth rate changes in a predictable pattern throughout the year in response to seasonal climate changes, resulting in visible growth rings. How do tree rings […]