Which type of lever is scissors? Other examples of first class levers are pliers, scissors, a crow bar, a claw hammer, a see-saw and a weighing balance. In summary, in a first class lever the effort (force) moves over a large distance to move the load a smaller distance, and the fulcrum is between the […]
Why is cohesion in water important?
Why is cohesion in water important? The cohesion of water molecules helps plants take up water at their roots. Cohesion also contributes to water’s high boiling point, which helps animals regulate body temperature. How do you use the word cohesive? Cohesive in a Sentence ? To make perfect pie dough, you must mix the ingredients […]
Can a small capacitor kill?
Can a small capacitor kill? Obviously the larger the capacitor, the higher the voltage, the greater the risk of a lethal shock becomes. A really small capacitor charged to a high voltage will not kill you, for example a 100pF capacitor charged to 10kV will only give you a mild static shock. Is a 1000uF […]
How old is the Grand Canyon in 2020?
How old is the Grand Canyon in 2020? Well, the Grand Canyon is a hodgepodge of old and new sections, as the researchers found in a recent study published in the Nature Geoscience journal. Some scientists believe that the Grand Canyon is 70 million years old. Can you get in trouble for stealing a rock? […]
Is the aurora borealis dangerous?
Is the aurora borealis dangerous? The Northern Lights occur so high up in the atmosphere that they don’t pose any threat to people watching them from the ground. The aurora itself is not harmful to humans but the electrically charged particles produced could have some potentially negative effects to infrastructure and technology. Is 2020 a […]
How do you stop a fission chain reaction?
How do you stop a fission chain reaction? In the operation of a nuclear reactor, fuel assemblies are put into place and then the control rods are slowly lifted until a chain reaction can just be sustained. As the reaction proceeds, the number of uranium-235 nuclei decreases and fission by-products which absorb neutrons build up. […]
What are three signs of substance use?
What are three signs of substance use? Criteria for Substance Use Disorders Taking the substance in larger amounts or for longer than you’re meant to. Wanting to cut down or stop using the substance but not managing to. Spending a lot of time getting, using, or recovering from use of the substance. Cravings and urges […]
Which achievement is credited to Aristotle?
Which achievement is credited to Aristotle? Aristotle was one of the greatest philosophers who ever lived and the first genuine scientist in history. He made pioneering contributions to all fields of philosophy and science, he invented the field of formal logic, and he identified the various scientific disciplines and explored their relationships to each other. […]
What is rate of change in a graph?
What do u mean by uniform circular motion?
What do u mean by uniform circular motion? Uniform circular motion can be described as the motion of an object in a circle at a constant speed. As an object moves in a circle, it is constantly changing its direction. At all instances, the object is moving tangent to the circle. Nonetheless, it is accelerating […]