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ycow [4]
3 years ago
10

How to find initial velocity in projectile motion problems when you are not given the vlocity?

Physics
1 answer:
Papessa [141]3 years ago
7 0
Vi= square root vi^2 -2ad
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A baseball with a mass of 0.15 kg is moving at a speed of 40 m/s. What is
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120 J

Explanation:

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Describe how a metamorphic rock might become a sedimentary rock over time.
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<span>Metamorphic rock undergoes weathering, erosion; the particles are deposited and undergo lithification.</span>
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Evaluate the scenarios and select the one that demonstrates the training principle overload.
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B :)

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What is the kinetic energy of a 1130 kg truck that is moving with a velocity of 40 m/s?
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The answer is 904,000.

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3 years ago
Two long, parallel wires separated by 2.00 cm carry currents in opposite directions. The current in one wire is 1.75 A, and the
Natasha_Volkova [10]

The force per unit length between the two wires is 6.0\cdot 10^{-5} N/m

Explanation:

The magnitude of the force per unit length exerted between two current-carrying wires is given by

\frac{F}{L}=\frac{\mu_0 I_1 I_2}{2\pi r}

where

\mu_0 = 4\pi \cdot 10^{-7} Tm/A is the vacuum permeability

I_1, I_2 are the currents in the two wires

r is the separation between the two wires

For the wires in this problem, we have

I_1 = 1.75 A

I_2 = 3.45 A

r = 2.00 cm = 0.02 m

Substituting into the equation, we find

\frac{F}{L}=\frac{(4\pi \cdot 10^{-7})(1.75)(3.45)}{2\pi (0.02)}=6.0\cdot 10^{-5} N/m

Learn more about current and magnetic fields:

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brainly.com/question/12246020

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#LearnwithBrainly

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