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2 years ago

15

1. A strobe pattern is made of marks on a piece of paper recorded every 0.1 s. Two adjacent marks near the middle of the pattern

are 3.4 cm apart. Use this information to estimate the instantaneous speed at that point.

1 answer:

Korvikt [17]2 years ago

7 0

Speed = distance / time

3.4cm / 0.1s = 34 cm/sec

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3 years ago

Read 2 more answers

beks73 [17]

Answer:

2 m/s²

Explanation:

the equations of motion are

S= ut +½at²

v² = u²+ 2as

v = u + at

s = (u+v)/2 × t

From the parameters given

u = 0m/s this is because it starts from rest

Distance (s) = 9m

Time (t) = 3s

Based on this the first equation would be used

s = ut + ½at²

Input values

9 = 0×3 + ½ × a x 3²

9 = 0 + 9a/2

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3 years ago

What common household substances can turn blue litmus paper red?

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Properties of acids include:
*Tasting sour
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A few household acids would be lemons, vinegar, salt, and some sodas.

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3 years ago

A 44 kg block lies on a horizontal frictionless surface. A horizontal force of 110 N is applied to the block. (a) Determine the

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3 years ago

Calculate how much calories you have if you have 8 joule ? please:

goblinko [34]

Answer:

If you have 8 Joules of energy that means you have 1.912 calories.

Explanation:

As we know that one calorie is equal to 4.184 J. We need to calculate in 8 Joules of energy how many calories are present.

We know that,

For 1 calorie = 4.184 J

For ? = 8 Joules

To obtain calories in 8 Joules. Divide 8 by 4.184.

$\text { Calorie }=\frac{\text { Joule }}{4.184}$

$\text { calorie }=\frac{8}{4.184}$

calorie=1.912

Therefore, 8 J = 1.912 calorie.

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3 years ago