PHYSICS
COLLEGE

Answer:

To solve this problem we will apply the linear motion kinematic equations, for this purpose we will define the time of each of the sections in which the speed is different. After determining the segments of these speeds we can calculate the average distance and the average speed. Our values are given as

x = 180 km

v = 95 km / h

Speed can be described as the displacement of a body per unit of time, and from that definition clearing the time we would have

From the statement we have that the total time is 4.5, then he remaining time is

When it starts to rain there is a phase change in the speed which is given by

Then the distance travel in this velocity

(a). Distance of your hometown from school ,

(b) The average speed

MIDDLE SCHOOL

Which of these is a type of matter that rarely interacts with other matter and is created in some nuclear fusion reactions within stars? A. photon

B. positron

C. neutrino

D. helium-4

Answer:

the answer is helium you already know that because im in college on my way to the military next week bless me

Explanation:

HIGH SCHOOL

What happens to parallel light rays that strike a concave lens?

Answer: When parallel light rays strike a concave lens, they will diverge that is they spread out.

Concave lens is also known as diverging lens, which means that when parallel rays of light strike on it, the lens spreads out the light rays ( that is it diverges the rays of light) that are refracted through it.

It is thinner at center as compared to edges and used to correct myopia ( a defect of vision that is also termed short-sightedness).

Therefore, when parallel light rays strike a concave lens, they will diverge that is they spread out.

Due to the shape of the lens , parallel rays will be deviated

HIGH SCHOOL

Every force has one and only one 3rd law pair force. every force has one and only one 3rd law pair force. a. True

b. False

I would have to say B failed because I think I read something about it being only 2law not 3

The correct answer is a. It is true

HIGH SCHOOL

Find the mass of a person walking west at a speed of 0.8 m/s with a momentum of 52.0 kg.m/s west.

Answer:

mass of the person walking to west is 65 kg.

Given:

Momentum = 52

Speed = 0.8

To find:

Mass of the person = ?

Formula used:

Momentum is given by,

P = m × v

Where, P = momentum

m = mass

v = speed

Solution:

Momentum is given by,

P = m × v

Where, P = momentum

m = mass

v = speed

Mass =

m =

m = 65 kg

Thus, mass of the person walking to west is 65 kg.