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padilas [110]
3 years ago
9

What is the maximum distance we can shoot a dart, provided our toy dart gun gives a maximum initial velocity of 5.80 m/s? the an

swer is 1.16m I just dont know why?!!!? help please!
Physics
2 answers:
allochka39001 [22]3 years ago
5 0
<span>The formula for the distance is v^2*sin(2alfa)/2g. To get your object as far as you can, you need to shoot it at angular of 45 degree (because of sin(2*45)=1). So, D=(5.8^2*1)/(2*10)=1.628 meters.</span>
EleoNora [17]3 years ago
4 0

Answer:

3.43 m

Explanation:

For maximum distance that is maximum range of a projectile, the angle of projectile should be 45°.

The formula for range is:

R = \frac{u^2 sin 2\theta}{g}

where, u is the initial velocity, θ is the angle of projectile and g is the acceleration due to gravity.

Substitute the values, u = 5.80 m/s, θ = 45° and g = 9.81 m/s²

R = \frac{5.80^2\times sin 90^o}{9.81} = 3.43 m

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The model represents a fluorine (F) atom. What is the mass of the atom?
castortr0y [4]

Answer:

19

Explanation:

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3 years ago
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4 years ago
Two charged particles are a distance of 1.62 m from each other. One of the particles has a charge of 7.10 nc, and the other has
k0ka [10]

Answer:

A. F=107.6nN

B. Repulsive

Explanation:

According to coulombs law, the force between two charges is express as

F=(Kq1q2) /r^2

If the charges are of similar charge the force will be repulsive and if they are dislike charges, force will be attractive.

Note the constant K has a value 9*10^9

Hence for a charge q1=7.10nC=7.10*10^-9, q2=4.42*10^-9 and the distance r=1.62m

If we substitute values we have

F=[(9×10^9) ×(7.10×10^-9) ×(4.42×10^-9)] /(1.62^2)

F=(282.4×10^-9)/2.6244

F=107.6×10^-9N

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B. Since the charges are both positive, the force is repulsive

8 0
3 years ago
There are eight men sitting on a couch. Three legs break and six men leave. How many legs are remaining
lutik1710 [3]

Explanation: Well, think about it if you see it on the logical end, there are 8 men that mean 16 legs. Then there are 4 legs of the couch as well that made it total of 20. If broken legs are of the men, then still the total will be 20 because the legs are still intact but 6 men left that means 12 legs are gone, if 3 legs break and 6 men leave. the number of legs remaining are 20–6*2–3=5....  so it's 5  I hope this helps! xoxo

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Head to states farther inland.
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