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3 years ago

PLEASE HELP!!! GIVING BRAINLIEST!! ill also answer questions that you have posted if you answer these correctly!!!! (77pts)

Physics

1 answer:

tensa zangetsu [6.8K]3 years ago

8 0

Answer:

Ex.

1. When we try cycling when we push the padel cycle starts but if we do not push the padels the cycle will stop on one position........

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When an object is stationary while making a sound, the pitch of the sound is perceived to be ___________. unchanged lower fluctu

ki77a [65]

The answer is Higher

5 0

4 years ago

Read 2 more answers

A bus hits a bug and the bug splatters on the windshield, which force is greater?

grandymaker [24]

The forces acting on a body and the type of motion that results are given by Newton's three Laws of motion

The force of the bus is the same as reactive force of the bug

Reason:

According to Newton's third Law of motion, given that the bug collides

with the bus, the force with which the bus hits the bug is equal to the

reactive force of the bug on the on the bus

According to Newton's second Law of motion, force is equal to the rate of

change of the momentum produced

The impulse of the force of the bus on the bug is given as follows;

F·Δt = m·(v₂ - v₁)

Given that the force of the bus is large, the change in momentum, m·(v₂ - v₁),

is also large such that the parts of the bug are split by the rapid change in

velocity, and the bug splatters on the windshield, and is then carried along

on the trip,

The equally large reactive force of the bug, is such that the bug splatters

due its magnitude

Therefore, the correct response is that the forces are the same

Lean more here:

brainly.com/question/21279060

8 0

2 years ago

Why is physics important to everyone? Describe 5 applications of physics in everyday life.

Sedaia [141]

1. Communication

In early ages people were using letters to communicate between them. Now days instantly we can call one person from anywhere, these are based on optical fiber communication and it is an application of physics.

2. Transportation

We can travel from place to anther place by aeroplane , these technologies are introduced after advancement in physics.

3. Construction

Earlier people used to stay in small houses, now days apartments with many number of storeys are built by considering all the forces coming on the structure.

4. Medical Department

The invention of many equipment increased the health of humans.

5. Weather forecasting

The prediction of weather considering all the available factors, prediction of natural disasters all are application of physics.

4 0

3 years ago

What is Snell law of refraction????

Morgarella [4.7K]

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Explanation:

Snell's law (also known as Snell–Descartes law and the law of refraction) is a formula used to describe the relationship between the angles of incidence and refraction, when referring to light or other waves passing through a boundary between two different isotropic media, such as water, glass, or air.

8 0

3 years ago

Read 2 more answers

A small pebble and one large boulder start at the same height and begin rolling down the side of a mountain. Which object would

vitfil [10]

Answer:

The small pebble

Explanation:

Since the potential energy, P.E lost equals kinetic energy, K.E gained,

P.E = K.E

P.E = mgh = K.E

So, K.E = mgh where g = acceleration due to gravity and h = height of drop

Since h and g are constant

K.E ∝ m

So, the kinetic energy of the object is directly proportional to its mass. Thus, the object with the smaller mass has the lesser kinetic energy.

Since the object with the smaller mass is the small pebble, so the small pebble would have less kinetic energy as it crashes on the road at the bottom of the mountain.

8 0

3 years ago