The weight (W) of an object is the product of its mass (m) and the acceleration (a). That is, W = m x a Substituting the known values give, W = (60 kg) x (3.75 m/s²) = 225 N Thus, the object's weight is 225 N. The answer is letter D.
A) A full moon shows sunlight bouncing off the moon's surface and traveling toward Earth.
I say this becasue, the reflection of the light waves is the sun being reflected off of the moon. The moon isn't shinning, it's just the sun's like off of the moon that was see. Thus, it travels to the earth in that matter.
A curved mirror is a mirror with a curved reflecting surface. The surface may be either convex or concave. Most curved mirrors have surfaces that are shaped like part of a sphere, but other shapes are sometimes used in optical devices.
Specific gravity is a quantity that tells me how much an object is submerged on a fluid relating the densities:
Because all the cubes are placed on water, the density of the fluid is the same for all the cubes and S.G. is directly proportional to the density of the cube material. So, for greater density greater S.G.
The Archimedes principle states that the buoyant force is equal to the weight of water displaced, that is:
So, the cube that submerges more is the cube that mor displace water and is the cube that has more buoyant force on it. In other words, the cubes with higher S.G. have more buoyant force, and because S.G is proportional to cube density, the cubes with more buoyant force have more density.