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Brut [27]
3 years ago
5

What do you mean by population size explain​

Physics
1 answer:
torisob [31]3 years ago
8 0
Population size is the actual number of individuals in a population. Population density is a measurement of population size per unit area, i.e., population size divided by total land area. Abundance refers to the relative representation of a species in a particular ecosystem.
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If a car used 260,000 W of power to complete a race in 15 s, how much work did the car do?
hichkok12 [17]

the answer is J. 3,900,000 got it right on the test

7 0
3 years ago
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A total electric charge of 2.00 nC is distributed uniformly over the surface of a metal sphere with a radius of 26.0 cm . The po
IrinaVladis [17]

Answer:

a) 40 V

b) 69.23 V

c) 69.23 V

Explanation:

See attachment for solution

7 0
3 years ago
What is the speed of a walking person in m/s if the person travels 1000 m in 20 minutes?
Nata [24]

Answer:

0.83m/s

Explanation:

Given parameters:

distance  = 1000m

time taken  = 20min

Unknown:

Speed of the walking person  = ?

Solution:

To solve this problem;

    Speed  = \frac{distance}{time taken}

  Time taken should be in seconds;

                 1 min   =  60s

                 20min  = 20 x 60  = 1200s

Speed  = \frac{1000}{1200}   = 0.83m/s

8 0
3 years ago
g A car is traveling east at 15.0 m/s when it turns due north and accelerates to 30.0 m/s, all during a time of 5.00 s. Calculat
nirvana33 [79]

Answer:

from \: first \: equation \: of \: motion \\ v = u + at \\ a =  \frac{v - u}{t}  \\ a =  \frac{30 - 15}{5}  \\ a = 3 {ms}^{ - 2}

3 0
3 years ago
Consider a wire of length L = 0.30m that runs north-south on a horizontal surface. There is a current of I = 0.50A flowing north
ankoles [38]

Answer:

Part a)

F = 4.6 \times 10^{-6} N

Part b)

F = 8.2 \times 10^{-2} N

Explanation:

Part a)

As we know that the magnetic force on the current carrying wire is given as

F = i(\vec L \times \vec B)

so we have

F = iLB sin\theta

F = (0.50)(0.30)(0.5 \times 10^{-4}) sin38

so we have

F = 4.6 \times 10^{-6} N

Part b)

Now magnetic field is changed to 0.55 T

so we will have

F = (0.50)(0.30)(0.55) sin90

F = 8.2 \times 10^{-2} N

3 0
3 years ago
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