Category: Physics

Is liquid cooling better than fans? According to Mark Gallina, liquid cooling more “efficiently distributes heat over more convection surface area (radiator) than pure conduction, allowing for reduced fan speeds (better acoustics) or higher total power.” In other words, it’s more efficient, and often quieter. Is liquid cooling hard to maintain? Liquid cooled systems require […]

Can Arccos be negative? The arccosine of a negative number is a second quadrant angle, cos-1(-) is in quadrant II. The arctangent of a positive number is a first quadrant angle, tan-1(+) is in quadrant I. Is SEC the same as Arccos? Note, sec x is not the same as cos-1x (sometimes written as arccos […]

What polarization means? polarization noun (DIVIDING) the act of dividing something, especially something that contains different people or opinions, into two completely opposing groups: They agreed to work together to end racial polarization. What is another word for opposite? What is another word for opposite? conflicting contrary opposed contradictory contrasting different antithetical differing inconsistent irreconcilable […]

What part of the brain triggers the release of adrenaline? After the amygdala sends a distress signal, the hypothalamus activates the sympathetic nervous system by sending signals through the autonomic nerves to the adrenal glands. These glands respond by pumping the hormone epinephrine (also known as adrenaline) into the bloodstream. When researchers create They are […]

What is the typical salinity of seawater? about 35 parts per thousand How much salt is in tap water ppm? EPA reports that seventy six percent of US drinking water contains sodium at 100 ppm or less. Only 1.3% of US drinking water supplies exceed 400 ppm. Conventional water softening systems usually add substantial quantities […]

How can you protect patient privacy and confidentiality? Keeping posted or written patient information maintained in work areas (such as nurses’ stations) covered from public view. Holding discussions about patient care in private to reduce the likelihood that those who do not need to know will overhear. Keeping electronic records secure through passwords and other […]

What is the vertical component of the velocity just before the ball hits the ground? When a projectile reaches maximum height, the vertical component of its velocity is momentarily zero (vy = 0 m/s). Is horizontal velocity constant? The horizontal velocity of a projectile is constant (a never changing in value), There is a vertical […]

Is the height you take for jumping important in the long jump? It does not matter how high an athlete jumps in a long jump. The span of long jump depends upon the initial velocity and the angle at which an athlete jumps. The span of jump is maximum for an angle of 45°. Thus […]

Can I melt a glue stick to make liquid glue? Whether used in crafts, manufacturing, packaging, fashion, or in any other creative function, glue sticks are a cheap and easy to come by product. All-purpose or school glue sticks and hot glue gun sticks can both be melted in the microwave, and hot glue gun […]

Is mirror writing a sign of autism? Mirror writing is an issue that many children face, hence is not specific to children on the autism spectrum. The important question is whether one perceives the image in reverse, or perceives it the right way but makes a mistake while carrying out the action of writing. Is […]