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3 years ago

What is the smallest part of an element?

Physics

1 answer:

jolli1 [7]3 years ago

5 0

An atom. :) Good luck! The atom is the smallest particle in an element.

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The speed of the pulse depends on what?

denis23 [38]

Answer:

The pulse speed depends on the properties of the medium and not on the amplitude or pulse length of the pulse.

Explanation:

Hope this helps.

8 0

3 years ago

A police car waits in hiding slightly off the highway. A speeding car is spotted by the police car traveling at speed s = 27.6 m

andriy [413]

Answer:

$t=\frac{2s}{a}=25.56s$

Explanation:

The distance traveled by the speeding car will be $d_s=st$ , where $s=27.6m/s$ .

The distance traveled by the police car will be given by the formula:

$d=v_{0}t+\frac{at^2}{2}$ , where $a=2.16m/s^2$ and $v_0=0m/s$ since it departs from rest, thus having $d=\frac{at^2}{2}$ .

The police car will reach the speeding car when those distances are the same, or $s=d$ , so we will have:

$st=\frac{at^2}{2}$

Which means:

$t=\frac{2s}{a}$

This is the expression asked, but we can use our values:

$t=\frac{2s}{a}=\frac{2(27.6m/s)}{(2.16m/s^2)}=25.56s$

6 0

4 years ago

How much force is needed to accelerate a 66kg skier at 2m/s

nika2105 [10]

264..forces is required

5 0

3 years ago

Read 2 more answers

A granite monument has a volume of 25,365.4 cm3. The density of granite is 2.7 g/cm3. Use this information to calculate the mass

Nana76 [90]

V = 25,364.4 cm^3 Is volumer = 2.7g/cm^3 Is density
To calculate mass you use formula:m= V*rTo avoid remembering this formula you can see the type of unit on each given variable. We can see that we have g/cm^3 and cm^3. If we multiply them, we negate cm^3 and cm^3 and we are left with g which is unit for mass.
the answer is :
m = 68,486,6 g

6 0

3 years ago

A 500 N force accelerates an object at 20 m s-2. What is its mass?

avanturin [10]

Answer: The mass of the object is 25kg.

The given question deals with Newton's second law of motion and its applications.

Explanation: Given force, F=500N

acceleration, a=20 m/ $s^{2}$

From Newton's 2nd law of motion , we have

F=ma where m=mass of the object

⇒500=m×20

⇒m=500/20=25

∴ Mass of the object is 25 kg .

Reference Link: brainly.com/question/1141170

#SPJ2

8 0

2 years ago