Category: Physics

What is the purpose of being certified as a nurse practitioner? The purpose of AANPCBs nurse practitioner certification programs is to provide a valid and reliable program for nurse practitioners to recognize their education, knowledge, and professional expertise, and to provide a process for validation of an advanced practice registered nurse’s qualifications and knowledge for […]

Why are we exploring space? Human Space Exploration Humans are driven to explore the unknown, discover new worlds, push the boundaries of our scientific and technical limits, and then push further. Human space exploration helps to address fundamental questions about our place in the Universe and the history of our solar system. Is space exploration […]

How far away from a wall should a ladder be? Use the 4-to-1 rule: Make sure the ladder is 1 foot away from the wall for every 4 feet that the ladder rises. For example, if the ladder touches the wall 16 feet above the ground, the feet/base of the ladder should be 4 feet […]

What are two examples of vascular seedless plants? Ferns, club mosses, horsetails, and whisk ferns are seedless vascular plants that reproduce with spores and are found in moist environments. What are 4 key traits of seedless vascular plants? What are some characteristics about Seedless Vascular Plants? Seedless vascular plants include ferns, whisk ferns, club mosses, […]

How can plants grow in soil without many minerals? Using a growing method called “hydroponics,” you can grow plants in a watery solution of mineral nutrients instead of soil. It’s also possible to grow plants hydroponically by placing their roots in a mineral nutrient solution contained in a non-soil material, such as gravel, coconut husks, […]

How do I know if my room is good acoustics? Walk around the room while listening to the song, and notice how the volume and frequencies differ in various places in the room. This may be subtle or it may be quite noticeable. This will give you a general impression of the acoustics of the […]

How do you round decimals to the nearest tenth? To round a number to the nearest tenth , look at the next place value to the right (the hundredths). If it’s 4 or less, just remove all the digits to the right. If it’s 5 or greater, add 1 to the digit in the tenths […]

What are three types of sedimentary rock? There are three different types of sedimentary rocks: clastic, organic (biological), and chemical. Clastic sedimentary rocks, like sandstone, form from clasts, or pieces of other rock. Are sedimentary rocks soft or hard? Sedimentary rocks are economically important in that they can easily be used as construction material because […]

Does the height depend on the distance between the person and the mirror? The man is twice as tall as the distance between points X and Y. In other words, to view an image of yourself in a plane mirror, you will need an amount of mirror equal to one-half of your height. A 6-foot […]

What is a circuit with only one path? A “series” circuit has only one path for the electricity to follow. A “parallel” circuit has two or more paths for the electricity. Does supply of electricity have two way path? That’s because the electricity is now flowing through two paths, instead of one. Think of it […]