Why did the ball roll when laid on the floor? because the friction present between the surface pushes the atoms/particles in contact with surface or ground backwards, hence with centre of mass moving in a direction, the ball’s bottom surface(ie. The surface in contact) moves in opposite direction or backwards, causing the ball to roll. […]
What are the basic differences and similarities between a generator and an electric motor What are the basic differences and similarities between a generator and an electric motor?
What are the basic differences and similarities between a generator and an electric motor What are the basic differences and similarities between a generator and an electric motor? Both the motor and generator are similar in construction; they consist of a stator and rotor parts. However, in a motor, electrical energy is the input, while […]
What are two main sources of the sediment that rivers and streams carry?
What are two main sources of the sediment that rivers and streams carry? The two main sources of the sediment carried by the streams and rivers are from the mass movement and runoff. What is the largest river on Earth? Nile River Which is the smallest river in the world? Roe River Which country has […]
How long do atoms live for?
Which is more elastic glass or steel?
Which is more elastic glass or steel? The Coefficient of elasticity of glass is between 50 and 90; the Coefficient of elasticity of steel is 210; the Coefficient of elasticity of Copper is 120. Therefore, the rubber is more elastic than glass and glass is more elastic than copper and copper is more elastic than […]
Is it possible for a car to move at constant speed and be accelerating?
Is it possible for a car to move at constant speed and be accelerating? The velocity vector is constant in magnitude but changing in direction. For this reason, it can be safely concluded that an object moving in a circle at constant speed is indeed accelerating. It is accelerating because the direction of the velocity […]
How do you describe clouds in writing?
How do you describe clouds in writing? Here are some adjectives for clouds: few puffy, yon sanguine, dense turbulent, simply polluted, insubstantial pink, polluted red, vagrant white, fiery semicircular, dappled seaborne, aflame, huge, pleasantly intoxicating, dark and coppery, voluminous and slightly blood-flecked, viscous, uncouth, slightly blood-flecked. What is Sun in simple words? The Sun is […]
Can light be a reference frame?
Can light be a reference frame? In all reference frames that actually exist, light travels through space and time in a normal way just like any other object. According to Special Relativity, as a frame goes faster, it shortens more in the direction of motion, relative to the stationary observer. How did Einstein know that […]
Which is the densest of all layers?
Which is the densest of all layers? inner core What are the 4 layers of earth? Starting at the center, Earth is composed of four distinct layers. They are, from deepest to shallowest, the inner core, the outer core, the mantle and the crust. Except for the crust, no one has ever explored these layers […]
What are the sources of error in this experiment?
What are the sources of error in this experiment? You are measuring against a standard, using an instrument that can never perfectly duplicate the standard, plus you’re human, so you might introduce errors based on your technique. The three main categories of errors are systematic errors, random errors, and personal errors. What is meant by […]