How high up on a building will a 15 foot ladder? Answer Expert Verified Use the Pythagorean theorem: The ladder will reach approximately 14.14 feet (exactly 10√2 feet) up on the building. What length of ladder is needed to reach a height of 7ft along the wall when the base of the ladder is 4 […]
What are the positive effects of a volcano?
What are the positive effects of a volcano? Volcanoes can provide people with many benefits such as: volcanic rock and ash provide fertile land which results in a higher crop yield for farmers. tourists are attracted to the volcano, which increases money to the local economy. geothermal energy can be harnessed, which provides free electricity […]
What are 2 units used for measuring volume?
What causes static electricity in a person?
What causes static electricity in a person? Static electricity is created when positive and negative charges aren’t balanced. Protons and neutrons don’t move around much, but electrons love to jump all over the place! When an object (or person) has extra electrons, it has a negative charge. Why is my laundry so static? What causes […]
What is effect of intensity of light?
What is effect of intensity of light? Intensity cannot change the cut off frequency or stopping potential. High intensity means more number of photons, so chances of hitting to electron by them increase and hence more photo electron are emitted i.e., photo current increases. Why intensity decreases as distance from the light source increases this […]
What is the difference between loudness and frequency?
What is the difference between loudness and frequency? Frequency (the number of vibrations or sound waves per second) is measured in Hertz (Hz). A sound that is 4,000 Hz (like the sound the letter “F” makes) has 4,000 waves per second. Intensity (loudness) is the amount of energy of a vibration, and is measured in […]
What is the highest sea level in history?
What is the highest sea level in history? The current sea level is about 130 metres higher than the historical minimum. Historically low levels were reached during the Last Glacial Maximum (LGM), about 20,000 years ago. The last time the sea level was higher than today was during the Eemian, about 130,000 years ago. Will […]
What is the most important factor in determining a safe vessel speed on any given day?
What is the most important factor in determining a safe vessel speed on any given day? According to the Navigation Rules the most important factor in determining safe vessel speed is? Traffic density. This can create a hazard in jet drive boats: Debris caught in the drive intake. What actions must you take when in […]
What kind of person would make a good forensic chemist?
What kind of person would make a good forensic chemist? A very good forensic scientist is highly analytical, accurate, excellent at communicating, and has expert-level knowledge. Analytical Skills. Accuracy. Good Communication Skills. Expertise. What are three skills needed by a forensic scientist? Key skills for forensic scientists Logical and independent mind. Meticulous attention to detail. […]
How can matter be transferred?
How can matter be transferred? In ecosystems, matter and energy are transferred from one form to another. Matter refers to all of the living and nonliving things in that environment. Nutrients and living matter are passed from producers to consumers, then broken down by decomposers. Decomposers break down dead plant and animal matter. How energy […]