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Sergeeva-Olga [200]
3 years ago
14

If distance of a partical from origin is given

Physics
1 answer:
Alecsey [184]3 years ago
8 0

Answer:

ookokokokokokokokpk

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Calculate the work done when: <br><br> The resultant force on a car is 22kN and it travels 2.0km.
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W=22,000N*(2,000m)
W=44,000,000J
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.Which uplift mechanism is pictured here?
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How do uplift and erosion help to form a batholith?
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A deer is running from a mountain lion when it encounters a fence that is 1.50 m high. Seeing the fence, the deer jumps, leaving
Novosadov [1.4K]

Answer:

Explanation:

Given

Initial Velocity (u)=13 m/s

angle=29^{\circ}

distance between fence and deer=2.5 m

We consider deer jump similar to projectile motion

equation of trajectory

y=xtan\theta -\frac{gx^2}{2u^2(cos\theta )^2}

y=2.5tan(29)-\frac{9.8\times 2.5^2}{2\times 13^2\times (cos29)^2}

y=1.385-0.2368=1.148 m

Thus deer will cross the fence with an difference in its jump and fence

1.5-1.148=0.351 m

h_{max}=\frac{u^2sin^2\theta }{2g}

h_{max}=\frac{13^2\times (sin29)^2}{2\times 9.8}

h_{max}=2.02 m

so deer rises during when it is over fence

8 0
4 years ago
A researcher is interested in exploring the effects of exposure to ultraviolet light on people’s emotional state. He divides his
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Answer:

Explanation:

In an experimental research, the control group is the group that serves as the neutral group that is not given any form of treatment and serves as the group in which the experimental groups are firstly compared to. Thus, <u>the control group in the question described is the Third group</u>.

While experimental groups are the groups that receive treatments required to make an inference from the experiment. From this description, <u>it can be deduced that the First and the Second group are the experimental groups.</u>

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