Why are seawalls bad for beaches? They’ve been shown to disrupt the natural pattern of beach replenishment along the coast. Seawalls also speed up erosion on bluffs, putting adjacent ocean-front property at risk. According to the California Coastal Commission, about a third of Southern California beaches are armored with seawalls. How long does it take […]
What will happen if a house do not have a vent system?
What will happen if a house do not have a vent system? It can make our homes “sick”, with condensation and mould damaging the walls and fabric of our houses. But, more importantly, it can make the occupants sick. High humidity levels can affect allergies and complicate respiratory diseases brought on by certain biological agents […]
What is tertiary motion?
What is tertiary motion? Tertiary motion is sequence motion. It is determined by the specific use oi one or several ofthese transition devices: the cut, the jump cut, the dissolve, the wipe, the fade, and special transitional effects. The cut is an instantaneous change from one image to another. What are the primary motions? For […]
What does high or low specific heat capacity mean?
What does high or low specific heat capacity mean? A substance with a high specific heat capacity can absorb a large quantity of heat before it will raise in temperature (water has a high specific heat). A substance with a low specific heat requires relatively little heat to raise its temperature (copper has a low […]
How long does a nuclear fuel rod last?
How long does a nuclear fuel rod last? To make that nuclear reaction that makes that heat, those uranium pellets are the fuel. And just like any fuel, it gets used up eventually. Your 12-foot-long fuel rod full of those uranium pellet, lasts about six years in a reactor, until the fission process uses that […]
How many circles do you need to balance the scale?
What is the best forecasting method?
What is the best forecasting method? Top Four Types of Forecasting Methods Technique Use 1. Straight line Constant growth rate 2. Moving average Repeated forecasts 3. Simple linear regression Compare one independent with one dependent variable 4. Multiple linear regression Compare more than one independent variable with one dependent variable What are the three types […]
How high will it bounce rebound ratios?
How high will it bounce rebound ratios? Tennis balls: Must rebound approximately 111cm when dropped from 200 cm. Soccer balls: Must rebound approximately 120cm when dropped form 200cm onto a steel plate. Basketballs: Must rebound approximately 53.5 inches when dropped from 72 inches onto a wooden floor. How can you tell how high a ball […]
How can a fully dressed person at rest in the middle of a pond on perfectly frictionless ice get to shore?
What happens if your TYRE pressure is too low?
What happens if your TYRE pressure is too low? When air pressure gets too low, the tire’s sidewalls flex more, and heat builds up within the tire. If the overheating gets severe, a section of the tire’s rubber can separate from its carcass—the mix of fabric and steel that the tire is built on. If […]