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3 years ago

Atoms are composed of protons, and electrons. Answer here

Physics

1 answer:

Rina8888 [55]3 years ago

7 0

Answer:

Atoms are composed of protons,

and electrons.

Explanation:

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Which of the following statements are true? Check all that apply. Check all that apply. The gravitational force between two obje

AveGali [126]

The gravitational force between two objects is inversely proportional to the square of the distance between the two objects.

The gravitational force between two objects is proportional to the product of the masses of the two objects.

The gravitational force between two objects is proportional to the square of the distance between the two objects. no

The gravitational force between two objects is inversely proportional to the distance between the two objects. no

The gravitational force between two objects is proportional to the distance between the two objects. no

The gravitational force between two objects is inversely proportional to the product of the masses of the two objects. no

3 0

3 years ago

Read 2 more answers

A street light is at the top of a 13.0 ft. tall pole. A man 6.3 ft tall walks away from the pole with a speed of 3.5 feet/sec al

amm1812

Answer:

$\dfrac{dL}{dt}=5.82 \ ft/s$

Explanation:

given,

street light height = 13 ft

man height = 6.3 ft

speed of the man = 3.5 ft/sec

$\dfrac{H}{L} = \dfrac{h}{l}$

$\dfrac{H}{L} = \dfrac{h}{L-x}$

$\dfrac{L}{H} = \dfrac{L-x}{h}$

hL = H(L-x)

hL = HL-Hx

$L = \dfrac{Hx}{H-h}$

$L = \dfrac{13x}{13-6.3}$

L = 1.94 x

$\dfrac{dL}{dt}=\dfrac{dL}{dx}\dfrac{dx}{dt}$

$\dfrac{dL}{dt}=1.94\times 3$

$\dfrac{dL}{dt}=5.82 \ ft/s$

7 0

3 years ago

Explain the difference between speed and vilocity?

Zolol [24]

Answer:

The short answer is that velocity is the speed with a direction, while speed does not have a direction.

Explanation:

Speed is how fast an object is moving. It is calculated by the displacement of space per a unit of time. Velocity is the rate at which an object changes position in a certain direction. It is calculated by the displacement of space per a unit of time in a certain direction. Velocity deals with direction, while speed does not.

5 0

3 years ago

The chart show the masses and velocities of two colliding objects that stick together after a collision.

finlep [7]

Answer:

1,500 kg.m/s

Explanation:

First, arrange the information in a table:

Object Mass (kg) Velocity (m/s)

A 200 15

B 150 - 10

After the collision, the two objects are stick together, thus you talk aobut one object and one momentum.

According to the law of convervation of momentum, the momentum after the collision is equal to the momentum before the collision.

Momentum before the collision, P₁:

$P_1=m_{A,1}\times v_{A,1}+m_{B,1}\times v_{B,1}$

$P_1=200kg\times 15m/s+150kg\times (-10m/s)\\\\ P_1=3000kg.m/s-1500kg.m/s=1500kg.m/s$

Momentum after the collision:

As stated, it es equal to the momentum before the collision: 1,500 kg . m/s

6 0

4 years ago

Help help help help please

eduard

Answer:

The sediment settled with the largest particles at the bottom and the smaller at the top.

3 0

3 years ago