Category: Physics

What happens when things are heated differently? When heat is added to a substance, the molecules and atoms vibrate faster. As atoms vibrate faster, the space between atoms increases. The motion and spacing of the particles determines the state of matter of the substance. The end result of increased molecular motion is that the object […]

What does the 2 stand for in li2o? The ionic formula for Lithium Oxide is Li2O . This makes oxygen a O−2 anion. Ionic bonds form when the charges between the metal cation and non-metal anion are equal and opposite. This means that two Li+2 cations will balance with one O−2 anions. What is the […]

Which planet has the greatest eccentricity? Mercury How is Earth’s eccentricity calculated? The formula to determine the eccentricity of an ellipse is the distance between foci divided by the length of the major axis. What is the maximum allowed value for eccentricity? 0.057 Is Earth’s orbital eccentricity large or small? The eccentricity of Earth’s orbit […]

Can the velocity of a particle change even if its speed is constant give examples? Give example. Yes. Even though its speed is constant, if it is not traveling in a straight line, the velocity can vary. Can an object have zero velocity but non zero acceleration? Acceleration is the change in velocity, not the […]

What is the highest on Richter scale? In theory, the Richter scale has no upper limit, but, in practice, no earthquake has ever been registered on the scale above magnitude 8.6. (That was the Richter magnitude for the Chile earthquake of 1960. The moment magnitude for this event was measured at 9.5.). Where is the […]

Should you lean forward while skiing? You only need to lean forwards enough to put your centre of gravity over the middle of the ski. The reason that this has become a myth is that one of the most common mistakes made by people learning to ski, is that they lean back, and that instructors […]

What is the youngest province in Virginia? Coastal Plain Which Virginia province has the most karst topography? Valley and Ridge province What is the largest province in Virginia? Piedmont Which Virginia province has the highest elevation? Mount Rogers is the highest natural point in Virginia, United States, with a summit elevation of 5,729 feet (1,746 […]

What is the final velocity when a body is dropped from a height? Answer: final velocity of the object will be 0 m/s. What is the initial velocity when a body is dropped from a height? Initial velocity of a body when dropped from a height is zero, i.e., u=0. When an object is dropped […]

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 […]

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 […]