which count of subatomic particles gives an atom its unique identity as an element, and represents its atomic number?

What is the acceleration of the the object during the first 4 seconds?

AVprozaik [17]

Answer:

Velocity (m/s) over time (s) graph

We could write out our average acceleration as:

a = Δv/ Δta=Δv/Δta, equals, Δ, v, slash, Δ, t

a = (15 m/s - 0 m/s) / 0.2 seconds

a = 15 m/s / 0.2 seconds

a = 75 m/s / second

Explanation:

What this formula is telling us is that if we know the acceleration of an object, and the ... we can plug in our acceleration of 12.5 m/s2 for a, and 4 seconds for t.

Velocity (m/s) over time (s) graph

We could write out our average acceleration as:

a = Δv/ Δta=Δv/Δta, equals, Δ, v, slash, Δ, t

a = (15 m/s - 0 m/s) / 0.2 seconds

a = 15 m/s / 0.2 seconds

a = 75 m/s / second

6 0

2 years ago

A 20-N falling object encounters 4 N of air resistance. The magnitude of the net force on the object is?

Irina18 [472]

16-N because 20-4=16

8 0

2 years ago

1,632 rounded by the nearest ten is ____

maksim [4K]

Answer:

1,632 rounded by the nearest ten is 1630

783 rounded by the nearest hundred is 800

43,761 rounded by the nearest thousand is 44,00

Explanation:

8 0

2 years ago

Read 2 more answers

Why are choir concerts better in performance halls than in gymnasiums?

dlinn [17]

Constructive interference in performance halls and the elimination of echoes are reasons why choir concerts better in performance halls than in gymnasiums.

<h3>What is constructive interference?</h3>

Constructive interference is a phenomenon which occurs when two waves travelling in same direction and which are in phase add up together to produce a wave of greater amplitude.

Constructive interference occurs in performance halls while destructive interference occurs in gymnasiums.

Also in performance halls, echoes are minimized due to the padded walls and the curtains while echoes which disturb choir concerts occur in gymnasiums.

Therefore, choir concerts better in performance halls than in gymnasiums because of constructive interference in performance halls and the elimination of echoes.

Learn more about constructive interference and echoes at: https://brainly.in/question/2378717

3 0

2 years ago

What is the kinetic energy of the 80kg skydiver if he is moving at 60m/s? (Show the equation, show your work and answer with uni

s344n2d4d5 [400]

Answer:

The answer to your question is: Ke = 144000 Joules

Explanation:

Data

Kinetic energy = ?

mass = 80 kg

speed = 60 m/s

Equation

$Ke = \frac{1}{2} mv^{2}$

$Ke = \frac{1}{2} (80)(60)^{2}$

Ke = 144000 Joules

4 0

3 years ago