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vazorg [7]
3 years ago
12

An element is made up of

Physics
2 answers:
Greeley [361]3 years ago
8 0

Answer:

only one type of atom

Explanation:

kvv77 [185]3 years ago
3 0
Elements are made of atoms, which are particles that represent the most basic form of an element.<span> An atom is the smallest particle of an element and cannot be further divided without becoming a less complex particle; in fact, the word 'atom' comes from the Greek word "atomos," meaning 'indivisible'.</span>
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what is the force if a block of wood with mass 20 kg slides along a frictionless surface at 2 m/s squared
CaHeK987 [17]

Answer:

40 N

Explanation:

F=ma where F is the applied force, m is the mass of object and a is the acceleration.

Since there is no friction, substituting 20 Kg for m and 2 m/s squared for a then we obtain

F=20*2=40 N

5 0
3 years ago
Best friends Kate and Diana are at the park, watching their children play together. Kate reminds Diana about
Scorpion4ik [409]

Kate's recollection of these different events along her life best exemplifies the use of her episodic memory.

<h3>What is episodic memory?</h3>

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Learn more about episodic memory here:

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3 0
2 years ago
An spring has a period of 4 seconds. What is its frequency?
trasher [3.6K]

Answer:

2Hz

Explanation:

Hope this helps

7 0
3 years ago
a car initially at rest move with the constant accerates along straght line read after it's spread increase and finally related
nasty-shy [4]

Answer:

32km per hour

Explanation:

Explanation:

In first case v = a t

==> a t = 40 km p h

Now distance covered S1 + S2 + S3

S1 = 1/2 a t^2 and S3 = 1/2 a t^2

But S2 = 3t * 40 = 120 t km

Hence total distance = at^2 + 120 t

Time taken (total) = t + 3t + t = 5 t

Hence average speed = at^2 + 120 t / 5 t

Cancelling t we have at + 120 / 5 = 40 + 120 / 5 = 160/5 = 32 km per hour

8 0
3 years ago
A 75.0-kg person climbs stairs, gaining 2.50 m in height. Find the work done to accomplish this task.
ololo11 [35]

Answer:

W=1837.5J

Explanation:

A force exerts work when there is a displacement of its point of application in the direction of that force. Therefore, the work done by a system is defined as the inner product between the applied force and the displacement:

W=\vec{F}\cdot \vec{d}\\W=Fcos\theta d

In this case, we have:

F=mg\\h=dcos\theta

So, replacing this:

W=mgh\\W=75kg*9.8\frac{m}{s^2}*2.5m\\W=1837.5J

4 0
3 years ago
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