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vfiekz [6]
3 years ago
14

a ball at rest starts rolling down a hill with a constant acceleration of 3.2 meters/second2. what is the final velocity of the

ball after 6.0 seconds ​
Physics
1 answer:
Y_Kistochka [10]3 years ago
6 0

Answer:

3.2(6.0) = 19.2 m/s

Explanation:

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Which sets of data show a wave with the shortest wavelength? A. Speed=100 million m/s and frequency = 50 million Hz. B. Speed=15
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The answer is <span>A. Speed=100 million m/s and frequency = 50 million Hz.</span>

Let's calculate for each choice the wavelength using the equation:
v = f × λ   ⇒ λ = v ÷ f<span>

where:
v - the speed,
f - the frequency,
</span>λ - the wavelength.

A:
v = 100 000 000 m/s
f = 50 000 000 Hz = 50 000 000 1/s (Since f = 1/T, so units are Hz = 1/s)
⇒ λ = 100 000 000 ÷ 50 000 000 = 2 m

B:
v = 150 000 000 m/s
f = 1 500 Hz = 1 500 1/s
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B:
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f = 100 Hz = 100 1/s
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According to these calculations, the shortest wavelength is needed for choice A.
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3 years ago
Hii I need help ASAP with this physics question
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Group 17 is called the halogen family, and the group to its right is called the noble gases. How are these elements alike and ho
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-The group 7 elements are also known as the halogens. They include fluorine, chlorine, bromine and iodine, which all have seven electrons in their outer shell.

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Using a material that is ‘Ohmic’ (it follows Ohm’s Law), you make a circuit using wire, a battery, and a resistor. After measuri
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When the original resistor is replaced with 3 times more resistive material, the resistance of the circuit increases by factor of 3 and  the current flowing in the cirucit decreases by a factor 3.

<h3>Ohm's law</h3>

Ohm's law states that, the current flowing in a conductor is directly proportional to the potential across the conductor.

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