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3 years ago

Make the following conversion. 50.5 cm = _____ hm

Physics

2 answers:

NikAS [45]3 years ago

7 0

Answer: The value of 50.5 cm in hectometer is 0.00505

Explanation:

We are given 50.5 centimeters and we need to convert it into hectometers. So, for this we need to use the following conversion:

1 hectometer = 10000 centimeter

Now, to convert centimeters into hectometers, we divide the number by 10000, so we get:

$50.5cm=\frac{50.5}{10000}hm=0.00505hm$

Hence, the value of 50.5 cm in hectometer is 0.00505

Rina8888 [55]3 years ago

3 0

50.5cm= 0.00505hm Hope this helps!

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A 2.3 kg particle-like object moves in a plane with velocity components vx = 40 m/s and vy = 75 m/s as it passes through the poi

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Answer:

(a) $\overrightarrow{L}=885.5\widehat{k}$

(b) $\overrightarrow{L}=1046.5\widehat{k}$

Explanation:

mass, m = 2.3 kg

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vy = 75 m/s

(a) Angular momentum is given by

$\overrightarrow{L}=\overrightarrow{r}\times \overrightarrow{p}$

Where, p is the linear momentum and r is the position vector about which the angular momentum is calculated.

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$\overrightarrow{p}=2.3\left ( 40\widehat{i}+75\widehat{j} \right )$

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So, the angular momentum

$\overrightarrow{L}=\left ( 3\widehat{i}-4\widehat{j} \right )\times\left ( 92\widehat{i}+172.5\widehat{j} \right )$

$\overrightarrow{L}=885.5\widehat{k}$

(b) Here, $\overrightarrow{r}=(3+2)\widehat{i}+(-4+2)\widehat{j}$

$\overrightarrow{r}=5\widehat{i}-2\widehat{j}$

$\overrightarrow{L}=\left ( 5\widehat{i}-2\widehat{j} \right )\times\left ( 92\widehat{i}+172.5\widehat{j} \right )$

$\overrightarrow{L}=1046.5\widehat{k}$

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