PHYSICS
HIGH SCHOOL

Answer: Volume is proportional to the amplitude of the sound wave

HIGH SCHOOL

How did rutherford's model of the atom differ from thomson's model?

Thompson thought atoms were made of a + nearly uniform medium (except for occasional electron)

Rutherford thought atoms had a central + nucleus with electrons orbiting around it.

So nuclear model vs non-nuclear model

Rutherford thought atoms had a central + nucleus with electrons orbiting around it.

So nuclear model vs non-nuclear model

MIDDLE SCHOOL

What is the volume of a cereal bowl

To figure that out you need the radius

Hello buddy

l can help u if we can get more info

on the bowl

so plz repost this

thanks dude

-toby out!

l can help u if we can get more info

on the bowl

so plz repost this

thanks dude

-toby out!

HIGH SCHOOL

Which of the following numbers contains the designated CORRECT number of significant figures? Which of the following numbers contains the designated CORRECT number of significant figures? 156 000 3 significant figures 0.00302 2 significant figures 0.04300 5 significant figures 3.0650 4 significant figures 1.04 2 significant figures

Answer:

156 000: 3 significant figures

Explanation:

The rules to identify the correct number of significant figures in a number are:

- All the non-zero digits are always significant

- Final (trailing) zeros are only significant if they are after the decimal point

- All zeros between non-zero digits are significant

Now we can apply these rules to the given numbers:

156 000: 3 significant figures --> TRUE. Only 1, 5 and 6 are significant figures here.

0.00302: 2 significant figures --> FALSE. Here the significant figures are only 3, 0 and 2, so there are 3 significant figures

0.04300: 5 significant figures --> FALSE. Here the significant figures are 4, 3, 0, 0: so, 4 sign. figures.

3.0650: 4 significant figures --> FALSE. Here there are 5 significant figures: 3,0,6,5,0

1.04: 2 significant figures --> FALSE. Here there are 3 significant figures: 1,0,4

MIDDLE SCHOOL

Our turtle Adel walks 10 feet in 50 minutes. How fast is Adel travelling? Be sure to include the equation for speed in your answer.

First, divide

ft/min

10/50= .2

so

.2 ft per minute

Equation for speed is

Speed= Distance/Time

ft/min

10/50= .2

so

.2 ft per minute

Equation for speed is

Speed= Distance/Time

Speed = (distance covered) / (time to cover the distance)

(10 ft) / (50 minutes) = 0.2 ft/minute

= 2.4 inch/minute

= 12 ft/hour

(10 ft) / (50 minutes) = 0.2 ft/minute

= 2.4 inch/minute

= 12 ft/hour