Category: Physics

Why did the Allies postponed opening a second front until 1944? 29. The Allies postponed opening a second front in Europe until 1944 because A. They hoped that Germany and the Soviet Union would cripple each other. The Soviet Union requested a delay until it could join the campaign. How did the opening of a […]

Why is my 9 year old so disrespectful? Disrespectful behavior often comes down to kids having poor problem-solving skills and a lack of knowledge about how to be more respectful as they pull away. Often when kids separate from you they do it all wrong before they learn how to do it right. How do […]

How far can the average human throw? Depends, are you asking how high or how far a ball can be thrown? Assuming the first of the two the average human can throw a ball approximately 15 metres (49.213 feet) in the air. In the latter the average person could throw a ball around 60 mp/h […]

What can be added to steel to make it stronger? carbon Can you mix finishes in a house? DON’T mix too many finishes and styles in the same room. If the finishes are different then the styles should be mostly the same (or at least similar). The exception here is if you want to call […]

What do Isometries preserve? An isometry is a transformation that preserves the relative distance between points. Under an isometry, the image of a point is its final position. What are the four types of Isometries? There are four types: translations, rotations, reflections, and glide reflections (see below under classification of Euclidean plane isometries). The set […]

How do you determine if there is a hydraulic jump? A hydraulic jump occurs when the upstream flow is supercritical (F>1). To have a jump, there must be a flow impediment downstream. The downstream impediment could be a weir, a bridge abutment, a dam, or simply channel friction. Water depth increases during a hydraulic jump […]

What is oxygenated blood called? Oxygenated blood is also called arterial blood as the arteries deliver oxygenated blood to different parts of the body through the pulmonary veins. Where does oxygenated blood come from? Blood enters the right atrium and passes through the right ventricle. The right ventricle pumps the blood to the lungs where […]

Why does the brother leave doodle in the rain? When Brother leaves Doodle in the rain, it is clear that he is angry that Doodle has failed. Doodle already collapsed in the mud after getting out of the boat, and both boys realize Doodle is not going to run. So Brother’s dream of a “regular” […]

How do you tell if it is a niche? If you’re struggling to decide, or you need more data to work with, use the following five steps to find your niche. Identify your interests and passions. This may be something you’ve already done. Identify problems you can solve. Research your competition. Determine the profitability of […]

Why do males tend to have better cardiorespiratory fitness than females? Why do males tend to have better cardiorespiratory fitness than females? Females tend to have more lean muscle mass than males. A. Males tend to have higher levels of hemoglobin in their blood. Why is physical activity so important in preventing heart disease? Being […]