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ollegr [7]
3 years ago
13

a ball rolls off a platform that is 5.0m above the ground with a horizontal speed of 6.0 m/s how far from the base of the platfo

rm does the ball hit the ground?
Physics
1 answer:
svp [43]3 years ago
7 0
Please elaborate more on your question so I can help you
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Type the correct answer in the box. Use numerals instead of words. Frank has a sample of steel that weighs 80 grams. If the dens
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10cm^3

Explanation:

Given data

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density of steel= 8 g/cm^3

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If someone is whispering, but you cant hear them, how do you fix that problem?
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Variations in the resistivity of blood can give valuable clues about changes in various properties of the blood. Suppose a medic
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Answer:

Answer:

1.1 x 10^9 ohm metre

Explanation:

diameter = 1.5 mm

length, l = 5 cm

Potential difference, V = 9 V

current, i = 230 micro Ampere = 230 x 10^-6 A

radius, r = diameter / 2 = 1.5 / 2 = 0.75 x 10^-3 m

Let the resistivity is ρ.

Area of crossection

A = πr² = 3.14 x 0.75 x 0.75 x 10^-6 = 1.766 x 10^-6 m^2

Use Ohm's law to find the value of resistance

V =  i x R

9 = 230 x 10^-6 x R

R = 39130.4 ohm

Use the formula for the resistance

R=\rho \frac{l}{A}

\rho =\frac{RA}{l}

\rho =\frac{39130.4\times 0.05}{1.766\times 10^{-6}}

ρ = 1.1 x 10^9 ohm metre

Explanation:

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3 years ago
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Answer:

In my physics class, something that helps connect better with kids is keeping connected with them always make sure to ask if they understand what you're teaching if they are following because sometimes most kids are to afraid to admit that they are lost, another way to connect with kids is maybe posting surveys to be able to check in with each student especially during this hard times :)

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