Is gravity a fictitious force?

Is gravity a fictitious force? Under General Relativity, the force of gravity is replaced by distortions in space itself. Objects move following the curvature of space. At low energies, in an inertial reference frame, that works out to move exactly the same way as under Newtonian gravity. Thus, Newtonian gravity is a “fictitious” force. Why […]

What are the two types of glass fracture?

What are the two types of glass fracture? When a projectile i.e. a bullet or rock hits the glass, it will form two distinct types of fractures: Radial and Concentric. There is another terminology that is known as cone fracture, observed to be caused by a penetration of the high velocity projectile such as a […]

Is soil alive or dead?

Is soil alive or dead? Soil is a living thing – it is very slowly moving, changing and growing all the time. Just like other living things, soil breathes and needs air and water to stay alive. Healthy, living soil provides us with our everyday needs. Can soil be dead? However, much of the ground […]

How do you know when to let your dog go?

How do you know when to let your dog go? Persistent and incurable inability to eat, vomiting, signs of pain, distress or discomfort, or difficulty in breathing are all indications that euthanasia should be considered. You and your family know your dog better than anyone else, so try to make a reasoned judgement on his […]

What is 4/3 times pi times radius cubed?

What is 4/3 times pi times radius cubed? The volume V of a sphere is four-thirds times pi times the radius cubed. The volume of a hemisphere is one-half the volume of the related sphere. Note : The volume of a sphere is 2/3 of the volume of a cylinder with same radius, and height […]

What star has a temperature of 20000 K?

What star has a temperature of 20000 K? O stars are the hottest, with temperatures from about 20,000K up to more than 100,000K. These stars have few absorption lines, generally due to helium. These stars burn out in a few million years. What’s the hottest star in the universe? But the hottest known stars in […]

Does Apple use a push or pull strategy?

Does Apple use a push or pull strategy? Apple no longer appears to be relying so much on a pull system when it comes to advancing its product line. Instead, a push system is being utilized, and every major product category is being pushed forward simultaneously. What is a drawback of a push strategy? Disadvantages […]

What do lipids do in the cell?

What do lipids do in the cell? The main biological functions of lipids include storing energy, as lipids may be broken down to yield large amounts of energy. Lipids also form the structural components of cell membranes, and form various messengers and signaling molecules within the body. What is the main function of lipids found […]

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