What are the basic fundamental dimensions? The fundamental dimensions used in mechanics are time, mass, and length. Symbolically, these are written as t, m, and l, respectively. The study of electromagnetism adds an additional fundamental dimension, electric charge, or q. Other quantities have dimensions compounded of these. Can humans perceive 3 dimensions? Well, in some […]
What is the relationship between flow and pressure?
What is the relationship between flow and pressure? This relationship can be expressed by the equation F = Q/t. Fluid flow requires a pressure gradient (ΔP) between two points such that flow is directly proportional to the pressure differential. Higher pressure differences will drive greater flow rates. The pressure gradient establishes the direction of flow. […]
What are great horned owls enemies?
Why do you want to work for NASA?
Why do you want to work for NASA? We bring together a range of people and perspectives to foster innovation and new ideas. At NASA, you’ll have the opportunity to expand your expertise through continuous learning opportunities, professional development, leadership training, and a unique culture of mentorship. What makes you to join NASA? Qualified applicants […]
How do you find the charge stored in a capacitor?
How do you find the charge stored in a capacitor? Capacitor Charge, Plate Separation, and Voltage Also, the more capacitance the capacitor possesses, the more charge will be forced in by a given voltage. This relation is described by the formula q=CV, where q is the charge stored, C is the capacitance, and V is […]
Why is coronary heart disease more common in older people?
Why is coronary heart disease more common in older people? Heart failure, coronary artery disease, and atrial fibrillation are common reasons for health visits and hospital stays. Normal aging causes your heart and blood vessels to stiffen, which can lead to these conditions in later years. For people older than 75, high blood pressure is […]
What are pins used for in textiles?
What are pins used for in textiles? Pins are used all the time in sewing projects to hold patterns to fabric, temporarily hold seams before stitching and for basting layers together when making a quilt. What is the function of the pins? In engineering and machine design, a pin is a machine element that secures […]
How does water displacement work when finding the volume of an irregular object?
How does water displacement work when finding the volume of an irregular object? Find mass using a balance scale, and use water displacement to find the volume of irregular objects. Water displacement works because the amount of water displaced by an object submerged in water equals the volume of the object. Why is water displacement […]
What are three changes that occurred during the Neolithic Revolution?
What are three changes that occurred during the Neolithic Revolution? Neolithic populations generally had poorer nutrition, shorter life expectancies, and a more labor-intensive lifestyle than hunter-gatherers. Diseases jumped from animals to humans, and agriculturalists suffered from more anemia, vitamin deficiencies, spinal deformations, and dental pathologies. What were some of the major changes for ancient people […]