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3 years ago

What do both Dr. Weishampel and Dr. Berger-Wolf use to explore interactions in ecosystems?

1 answer:

alexandr1967 [171]3 years ago

3 0

John Weishampel is a researcher and professor at the University of Central Florida. He studies how the nonliving and living parts of ecosystems interact. ... Tanya Berger-Wolf also uses data and computers to model the interactions in ecosystems. She uses both computer science and life science in her work.

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How can the shapes of a boat and an airplane affect how water and wind forces act on the objects?

gulaghasi [49]

It would be Aerodinmic

5 0

4 years ago

A car travels from City A to City B to the north. It takes 4 hours, and the road mileage is 200 miles. The map shows that

ikadub [295]

Answer:

The average speed would be the 200 miles/4 hours.

The average velocity would be the net displacement to the north at 80 miles/4 hrs = mph

Explanation:

4 0

3 years ago

Divers change their body position in midair while rotating about their center of mass. In one dive, the diver leaves the board w

OlgaM077 [116]

Answer:

Her angular velocity when tucked is greater than when straight by a factor of 0.23

Explanation:

Moment of inertia (I) = mr^2 = mv^2/w^2

m is mass of the diver

v is diver's linear velocity

w is her angular velocity

When straight, I = 14 kg.m^2

mv^2/w^2 = 14

w^2 = mv^2/14

w = sqrt(mv^2/14) = 0.27sqrt(mv^2)

When tucked, I = 4 kg.m^2

w^2 = mv^2/4

w = sqrt(mv^2/4) = 0.5sqrt(mv^2)

Her angular velocity when tucked is greater than when straight by 0.23 (0.5 - 0.27 = 0.23)

5 0

4 years ago

Read 2 more answers

True or False <br><br> All objects emit electromagnetic waves.

MariettaO [177]

Answer:

true

explanations: especially hot body ie.above -273 tends to emit infrared type radiation

7 0

3 years ago

A stone is dropped into water from a bridge 52 m above the water's

dusya [7]

Answer:

Its final velocity and how much time it takes to reach the water

Explanation:

The motion of the stone is a uniformly accelerated motion, so we can use the following suvat equation to determine its final velocity:

$v^2-u^2=2as$

where

v is the final velocity

u = 0 is the initial velocity

$a=g=9.8 m/s^2$ is the acceleration of gravity

s = 52 m is the distance covered during the fall

Solving for v,

$v=\sqrt{u^2+2as}=\sqrt{0^2+2(9.8)(52)}=31.9 m/s$

We can also find how much time it takes to reach the water, using the equation

$v=u+at$

where

v = 31.9 m/s is the final velocity

u = 0 is the initial velocity

$a=g=9.8 m/s^2$

t is the time

And solving for t,

$t=\frac{v-u}{a}=\frac{31.9-0}{9.8}=3.26 s$

3 0

3 years ago