Category: Physics

What triggers mass wasting? Mass-wasting events often have a trigger: something changes that cause a landslide to occur at a specific time. It could be rapid snowmelt, intense rainfall, earthquake shaking, volcanic eruption, storm waves, rapid-stream erosion, or human activities, such as grading a new road. How can the effects of mass wasting be reduced? […]

What are the two types of transistors? Basic Electronics – Types of Transistors The primary transistor is the BJT and FET is the modern version of transistor. Let us have a look at the BJTs. The types of BJT are NPN and PNP transistors. The FET is a unipolar device, which means that it is […]

Can rope be used for rigging? The single-braid can be used as a rigging rope for natural crotch rigging as well as for technical rigging. I refer to technical rigging when the use of friction devices and pulleys are used. We will always need a greater diameter of a single-braid rope then of a double-braided […]

Can you drink water in space? What do astronauts drink in space? Astronauts mainly drink water while in space, but flavoured drinks are also available. Freeze-dried drink mixes such as coffee or tea, lemonade and orange juice are provided in vacuum sealed pouches. How effective is LifeStraw? The LifeStraw Family is a cheap, easy to […]

What is the volume of a soccer ball? 371.43 inches What is the volume of a tennis ball? about 8 cubic inches How do you measure the diameter of a soccer ball? Then mark a spot on the table top, where the front of the square is touching both the ball and table. The distance […]

What factors affect a pendulum? The only things that affect the period of a simple pendulum are its length and the acceleration due to gravity. The period is completely independent of other factors, such as mass. Does period of pendulum depend on angle? The period of a pendulum does not depend on the mass of […]

What is a focal point of a convex lens? The focal point of a convex lens is the point where light rays parallel to the axis are brought to a point. The distance from the lens to this point is called the focal length of the lens. Which lens has two points of focus? However, […]

What are two things that affect solubility? There are two direct factors that affect solubility: temperature and pressure. Temperature affects the solubility of both solids and gases, but pressure only affects the solubility of gases. What decreases the dissolving rate of a solid in water? An increase in temperature decreases both solubility and rate of […]

Which is the main cause of Tides? Tides are caused by the gravitational pull of the sun and the moon on the earth. Along the Pacific coast, there are usually two high tides of unequal height and two low tides of unequal height approximately every 24 hours. How come we don’t fall off the earth? […]

How many electrons can fill the 4th Shell? Search form Shell Subshell Total Number of Electrons in Shell 1st Shell 1s 2 2nd Shell 2s, 2p 2 + 6 = 8 3rd Shell 3s, 3p, 3d 2 + 6 + 10 = 18 4th Shell 4s, 4p, 4d, 4f 2 + 6 + 10 + […]