## Why physics is better the biology, Physics

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#### What is the weight of the sled and rider, A sled and its rider are perched ...

A sled and its rider are perched at the top o a hill that is 35 m tall. If the gravitational potential energy is 3.0 x 10 4 J. What is the weight of the sled and rider?

#### Will light go any length along the fiber, Will light go any length along th...

Will light go any length along the fiber? Each conductor has losses, and in the case of fiber optics, all these are sizeable. Light losses into the industry average 2 to 5 perc

#### Circular motion, A car of mass 800 kg is pulling a trailer of mass 300 kg u...

A car of mass 800 kg is pulling a trailer of mass 300 kg up the slope of angle ? to the horizontal where sine ? = 1/200. Resistance to motion (apart from gravity) is 1.5 N per kg o

#### Conservation laws, conservation laws A law that states that, in a clos...

conservation laws A law that states that, in a closed system, the whole quantity of something will not enhance or reduce, but exactly remain the same; i.e., its rate of altera

electric field

#### When are intermolecular forces the strongest, When are intermolecular force...

When are intermolecular forces the strongest? Intermolecular forces (dipole-dipole, dispersion and hydrogen bonds). These forces are weaker than chemical (covalent) bonds. Thus

#### Explain the formation of the final image of an object, With the help of a r...

With the help of a ray diagram, explain the formation of the final image of an object in a compound microscope. Derive a mathematical expression for its magnifying power.

#### Newton's law of gravitation, Newton's Law of Gravitation In 1687, Newto...

Newton's Law of Gravitation In 1687, Newton did not "discover" gravity but he did figure out that gravity is universal. It makes a ball fall when you drop it on earth. It also

#### Describe stoke''s formula, Stokes' Formula: When a spherical object falls ...

Stokes' Formula: When a spherical object falls by the fluid, layer in immediate touch with it, sticks to it and goes along with the object with the same speed. The layer next to i

#### The monkey and zookeeper- vectors and projectiles, The Monkey and Zookeeper...

The Monkey and Zookeeper There is an attractive monkey down at the zoo. The monkey spends most of its day execution from a limb of a tree. The zookeeper feeds the monkey throug