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morpeh [17]
3 years ago
10

ASAP answer all pls will mark brainiest

Physics
2 answers:
sammy [17]3 years ago
7 0

Answer:

1) B

2)D

Explanation:

I am unsure of #2

Brilliant_brown [7]3 years ago
5 0
1)C momentum is definitely a property just like inertia
2)D momentum = mass x energy = 9 x 3 = 27
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We are given that,

\frac{dx}{dt} = 4ft/s

We need to find \frac{d\theta}{dt} when x=8ft

The equation that relates x and \theta can be written as,

\frac{x}{6} tan\theta

x = 6tan\theta

Differentiating each side with respect to t, we get,

\frac{dx}{dt} = \frac{dx}{d\theta} \cdot \frac{d\theta}{dt}

\frac{dx}{dt} = (6sec^2\theta)\cdot \frac{d\theta}{dt}

\frac{d\theta}{dt} = \frac{1}{6sec^2\theta} \cdot \frac{dx}{dt}

Replacing the value of the velocity

\frac{d\theta}{dt} = \frac{1}{6} cos^2\theta (4)^2

\frac{d\theta}{dt} = \frac{8}{3} cos^2\theta

The value of cos \theta could be found if we know the length of the beam. With this value the equation can be approximated to the relationship between the sides of the triangle that is being formed in order to obtain the numerical value. If this relation is known for the value of x = 6ft, the mathematical relation is obtained. I will add a numerical example (although the answer would end in the previous point) If the length of the beam was 10, then we would have to

cos\theta = \frac{6}{10}

\frac{d\theta}{dt} = \frac{8}{3} (\frac{6}{10})^2

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Search light is rotating at a rate of 0.96rad/s

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Which has greater buoyant force, light corn syrup or the vegetable oil?
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A 600-g block is dropped onto a relaxed vertical spring that has a spring constant k =190.0 N/m. The block becomes attached to t
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Answer:

Work done will be 2.205 j

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Gravitational force on the block F=mg=0.6\times 9.8=5.88N

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A divot is created _____.
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I think it is when shot scrapes off the top of the turf

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Sallys physical education teacher timed her run and recorded the time and distance in the table below. What is her average speed
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