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2 years ago

A population is comprised of all one species, whereas a ___________ is made up of many of these.

Physics

1 answer:

miv72 [106K]2 years ago

5 0

Answer: Ecosystem

Explained: There's a minimum word count I'm filling up, don't mind me.

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What is unique about Neptune's discovery?

ale4655 [162]

Answer:

the answer is

B)It was the first planet located through mathematical calculations

7 0

3 years ago

The magnitude of the magnetic field at a certain distance from a long, straight conductor is represented by B. What is the magni

masya89 [10]

Answer:

B/4

Explanation:

The magnetic field strength is inversely proportional to the square of the distance from the current. At double the distance, the strength will be 1/2^2 = 1/4 of that at the original distance:

The field at twice the distance is B/4.

8 0

2 years ago

When you drop a 4.5 kg watermelon off the Dennison building, it reaches a terminal velocity of around 35 m/s second before smash

mart [117]

Answer:

3) 52500N

Explanation:

We use the mathematical definition of impulse as follows;

$Ft = mv............(1)$

were F is the force experienced, t is the time of impact, m is the mass of the object and v is the velocity of impact.

Given; m = 4.5kg, v = 35m/s, t = 3 milliseconds

however, $3milliseconds=3*10^{-3}s$

From equation (1);

$F=\frac{mv}{t}.............(2)$ .

Substituting all necessary values into equation (2), we obtain the following;

$F=\frac{4.5*35}{3*10^{-3}}}\\\\F= \frac{157.5.5}{0.003}\\\\F=52500N$

6 0

2 years ago

A 23.7 kg kid slides down a

anyanavicka [17]

Answer:

$\text { The acceleration of the kid is } 7.18 \mathrm{m} / \mathrm{s}^{2}$

Explanation:

Mass of the kid 23.7 kg.

$\text { The kid is accelerating down at an angle is } 47.2^{\circ} .$

$^{\prime \prime} \mathrm{g}^{\prime \prime} \text { acceleration due to gravity is } 9.8 \mathrm{m} / \mathrm{s}^{2}$

We need to find the acceleration of the kid,

We know that, Parallel force acted on the kid at an angle is

F = m × g × sinθ (F = ma)

m × a = m × g × sinθ

Now, substitute the given values in the above formula to find acceleration of the kid,

$23.7 \times a=23.7 \times 9.8 \times \sin 47.2^{\circ}$

23.7 × a = 232.26 × 0.733

23.7 × a = 170.24

$a=\frac{170.24}{23.7}$

$a=7.18 \mathrm{m} / \mathrm{s}^{2}$

$\text { Therefore, acceleration of the kid is } 7.18 \mathrm{m} / \mathrm{s}^{2}$

6 0

2 years ago

A horizontal force of 14.0N is applied to a box of m=32.5kg with Vo=0. Ignoring friction, how far does the crate travel in 10.0s

Alex Ar [27]

I’m going to assume initial velocity is 0.

Use Newton’s second law:

F = m•a

F/m = a

14.0/32.5kg= 28/65 m/s^2

Use constant SUVAT acceleration formulae:

S- displacement - what we need to find out

U - initial velocity - 0

V

A - 28/65 m/s^2

T - 10 seconds

S = ut + 1/2at^2

Since u = 0

S = 1/2at^2

1/2• 28/65 • 10^2 = 21.5metres~

Answer is 21.5 metres

~Hoodini, here to help.

6 0

3 years ago