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3 years ago

You are an astronaut floating alongside your space ship. If you throw a baseball with a speed of 10 m/s, you will move at:

Physics

1 answer:

ZanzabumX [31]3 years ago

4 0

Answer:

Explanation:

There is no friction to stop you from moving BC you are in space, however you have a larger mass than the ball, so it takes more force to get you up to the same speed as the baseball. You will move in the opposite direction of the ball because you exerted force on the ball in one direction and therefore yourself in the opposing direction.

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Identify which best describes the energy used to pluck guitar strings to make sound.

Novay_Z [31]

The correct answer is: Mechanical Energy

Explanation:
As the guitar strings are plunked, the potential energy stored in the strings has an ability to make them vibrate. When the strings are vibrating, that potential energy is actually converted to the kinetic energy. Hence, the whole phenomena contains both the kinetic energy and the potential energy. The sum of kinetic energy and the potential energy is called Mechanical energy. Therefore, the correct answer is Mechanical Energy.

8 0

3 years ago

Read 2 more answers

Diffraction patterns are due to: interference refraction dispersion scattering

uranmaximum [27]

Diffraction patterns are due to interference. Diffraction is a phenomena which occurs when a wave encounters an obstacle. It is the bending of light around the corners if the obstacle.

3 0

2 years ago

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A wedge shaped air film is made between two sheets of glass using a spacer at one end of the glass sheets. If light of wavelengt

pychu [463]

Answer:

1178 nm

Explanation:

We are given that

Wavelength of light= $\lambda=589nm=589\times 10^{-9} m$

$1nm=10^{-9} m$

We have to find the thickness of spacer if five dark fringes are observed between the edges of the glass.

Suppose that first dark fringe and fifth dark fringe near spacer, then the path length of light is 4 times the wavelength of light.

The light passes through air film is two times then the change in air film thickness from one edge to other is two times the wavelength of light.

Change in air film thickness from one edge to other edge is same as the thickness of spacer.

Therefore, thickness of spacer= $2\lambda$

Thickness of spacer= $2\times 589\times 10^{-9}$ m

Thickness of spacer=1178 nm

Hence, the thickness of spacer=1178 nm

8 0

2 years ago

HELP PLZ!!!!! Why do things get classified as"hot" or "cold"?

atroni [7]

Answer:

Heat flows from higher to lower temperature. So when you keep hot things in normal temperature, the heat from hot object transfers to the environment until they are both on the same level. Same happens when a cold object is kept in normal room temperature, the heat from the environment transfers to the cold object until they are both equal. its all about achieving the equilibrium in a system

5 0

2 years ago

During the removal of wastes in a cell, the waste products move

marin [14]

From an area of higher conentration to an area of lower concentration which is B. my friend. Hoped i helped.

7 0

3 years ago