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Yakvenalex [24]
3 years ago
9

The strength of an electric field depends on the

Physics
2 answers:
KengaRu [80]3 years ago
5 0
<span>The correct option is D) both A and B. In fact, the strength of an electric field produced by a single point charge is given by
</span>E=k  \frac{Q}{r^2}<span>
where Q is the charge that generates the field, k is the Coulomb's constante and r is the distance from the charge source of the field.

From the equation, we see that the strength of the field depends on A) the amount of charge that produced the field (Q) and B) the distance from the charge (r), so the correct option is D.</span>
Neko [114]3 years ago
5 0

Answer:

option D

Explanation:

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On a very muddy football field, a 110kg linebacker tackles an 85kg halfback. Immediately before the collision, the linebacker is
Alchen [17]
<span>Using conservation of energy and momentum you can solve this question. M_l = mass of linebacker
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V_h = velocity of halfback

So for conservation of momentum,
rho = mv

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For conservation of energy (kinetic)
E_k = 1/2mv^2/ 1/2mV_li^2 + 1/2mV_{hi}^2 = 1/2mV_{lf}^2 + 1/2mV_{hf}^2

Where i and h stand for initial and final values.
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3 years ago
Find the sum of the vectors: 40m/s2 Northeast, 10 m/s2 Northeast
podryga [215]

Answer:

Explanation:

Since both vectors are pointing on the same direction (Northeast), the sum of them will point in that same direction, and its magnitud will be the sum of the magnitudes of each vector (40m/s2+10m/s2). This problem is just a problem in one dimension. The sum of the vectors is then 50m/s2 Northeast.

8 0
4 years ago
In 2013, the world record depth for free diving without assistance was 101 m. What is the pressure in the water (assumed freshwa
serg [7]

Answer:

The pressure in the water is 1.1\times10^{6}\ Pa

Explanation:

Given that,

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Let P be the pressure at the bottom of water at a depth

We need to calculate the pressure in water

Using formula of pressure

P=P_{w}+P_{atm}

Where, P_{atm} = atmospheric pressure

P_{w} = pressure in water

Put the value of P_{w} in to the formula

P=\rho hg+P_{atm}

Put the value into the formula

P=1000\times101\times9.8+101325

P=1.1\times10^{6}\ Pa

Hence, The pressure in the water is 1.1\times10^{6}\ Pa

6 0
3 years ago
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When objects move farther away from the earth’s, the force of gravity on these objects gradually decline although their mass remains constant.
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What is the biological impact of minimum catch sizes on a population of fish?
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The population comes to be dominated by smaller, slower-growing individuals 
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