All categories

4 years ago

Materials have unique properties because each one is made up of different kinds of which particle?

Physics

1 answer:

4vir4ik [10]4 years ago

4 0

Answer:

atoms

Explanation:

All matter is made of elementary particles called "atoms".

You might be interested in

El sargento Conejero toma el sol en su colchoneta, de 2 m2 de superficie, flotando en el agua de la piscina (d = 1 g/cm3 ). Si o

galben [10]

Answer:

W = 529.2 N

Explanation:

We can solve this problem using the translational equilibrium equation, where the forces are the weight of the sergeant and the thrust of the water given by Archimedes' principle

B - W = 0

where the thrust is

B = ρ g V_liquid

The volume of the displaced liquid is

V = A h

we substitute

ρ g A h = W

We reduce the magnitudes to the SI system

h = 2.7 cm = 0.027 m

ρ = 1 g / cm3 = 1000 kg / m³

let's calculate

W = 1000 9.8 2 0.027

W = 529.2 N

7 0

3 years ago

Can someone help me out?

Sphinxa [80]

Answer:

1) The car is slowing down

2) A = 40N forward & B = 25N up

Explanation:

Whenever you're dealing with forces on moving objects, it is important to look at each of the numbers and the directions they're going in.

With the racecar, we see it has four forces on it, 2,000 N up and down, 8,000 back, and 6,000 N forward. Now, each of these forces are going in their respective directions, but they are most in comparison with the force going in the opposite direction (vertical axis, horizontal axis). The two 2,000 N forces will cancel each other out since there is an equal force in both directions, causing a net force of 0 N on the vertical axis. This is because the car is most likely moving on a flat surface. As for the horizontal axis, we simply subtract 6,000 & 8,000 to get a net force of -2,000 N in the backwards direction, telling us that the car is slowing down.

As for the boxes, we see the same vertical and horizontal axes, but separated to each box. Box A has a net force of 40 N in the forward direction and Box B has a net force of 25 N in the upward direction.

4 0

3 years ago

The theory that light exists in quantized "chunks" was proposed in response

Dafna1 [17]

Its D because of the emission spectra

8 0

3 years ago

Read 2 more answers

if 450 joules of energy are needed to move a crate a distance of 5 meters, what is the weight/force of the crate?

Art [367]

Work done (J) = Force (N) x Distance (m)

3 0

3 years ago

The New England Merchants Bank Building in Boston is 152 m high. On windy days it sways with a frequency of 0.17 Hz, and the acc

aksik [14]

Answer:

d = 8.4 cm

Explanation:

In order to calculate the amplitude of oscillation of the top of the building, you use the following formula for the max acceleration of as simple harmonic motion:

$a_{max}=A\omega^2$ (1)

A: amplitude of the oscillation

w: angular speed of the oscillation = 2 $\pi$ f

f: frequency = 0.17Hz

The maximum acceleration of the top of the building is a 2.0% of the free-fall acceleration. Then, you have:

$a_{max}=0.02(9.8m/s^2)=0.196\frac{m}{s^2}$

Then, you solve for A in the equation (1) and replace the values of the parameters:

$A=\frac{a_{max}}{\omega^2}=\frac{a_{max}}{4\p^2i f^2}\\\\A=\frac{0.196m/s^2}{16\pi^2(0.17Hz)^2}\\\\A=0.042m=4.2cm$

The total distance, side to side, of the oscilation of the top of the building is twice the amplitude A. Then you obtain:

d = 2A = 2(4.2cm) = 8.4cm

4 0

4 years ago