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Tems11 [23]
3 years ago
13

What most closley defines population density?

Physics
1 answer:
Genrish500 [490]3 years ago
3 0
The carrying capacity of a biological species in an environment is the maximum population size of the species that the environment can sustain indefinitely, given the food, habitat, water, and other necessities available in the environment.
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1.a machine gun fires a ball with an initial velocity of 600m/s with an elevation of 30° with respect to the ground neglecting a
Sedbober [7]

Answer:

See explanation

Explanation:

a) maximum height of a projectile = u sin^2θ/2g

H= 600 × (sin 30)^2/2 × 10

H= 7.5 m

b) Time of flight

t= 2u sinθ/g

t= 2 × 600 sin 30/10

t= 60 seconds

Range

R= u^2sin2θ/g

R= (600)^2 × sin2(30)/10

R= 31.2 m

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2 years ago
A neutral atom of uranium (U) has 146 neutrons and a mass number of 238. How many protons does it have?
BARSIC [14]

Answer:

92 protons

Explanation:

The mass number is 238 , so the nucleus has  <u>238  particles</u> in total, including <u>146 neutrons</u>.  So to calculate the number of neutrons we have to subtract:  238  −  146  =  92

4 0
2 years ago
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What are simple machines please?
lubasha [3.4K]

A basic mechanical device that is used for applying a force.

Examples are: inclined plane, lever, wedge, wheel and axle, pulley, and screw...Hope this helps, have a BLESSED and wonderful day!

5 0
3 years ago
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how does gravity affect objects of different mass close to earth, and how does that effect change as an object moves farther fro
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Answer:

It makes it lighter when its closer and heavier when its farther way.

Explanation:

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The elements least likely to form bonds are found in what group
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It is in the noble gas group which has a full valence electron shell found in group 18 
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