Dr. Man was studying a fossil from a dig in a desert when he noticed that the organism had evidence of fins.

a person, sunbathing on a warm day, is lying horizontally on the deck of a boat. her mass is 59.5 kg, and the coefficient of sta

Setler [38]

a) since a=0 therefore, friction force =0

b) friction = 59.5 × 1 =59.5 N.

c)maximum acceleration = 0.566 × g =5.54 m/s².

<h3>What is Friction force?</h3>

The force preventing sliding against one another of solid surfaces, fluid layers, and material components is known as friction. There are various kinds of friction: Two solid surfaces in touch are opposed to one another's a relative lateral motion by dry friction.

<h3>What is acceleration?</h3>

Acceleration is the rate at which an object's velocity with respect to time changes. They are vector quantities. The direction of the net force acting on an object determines the direction of its acceleration.

Hence, (a) since a=0 therefore, friction force =0, (b) friction = 59.5 × 1 =59.5 N, (c)maximum acceleration = 0.566 × g =5.54 m/s².

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4 0

1 year ago

Let us be two cylindrical conductors connected in parallel, to which a potential difference of V = 170V is applied. The two cond

PSYCHO15rus [73]

The equivalent resistance of the two cylindrical conductors connected in parallel is 466 ohm.

<h3>Resistance</h3>

Resistance is a measure of the opposition to flow of electric current. It is measured in ohms.

It is given by the formula:

$R=\rho\frac{l}{A} \\\\where\ l=length,A=area,\rho=resistivity$

Given that R₂ = 469 ohm, hence:

$R_2=\rho\frac{l_2}{A_2} \\\\469=\rho\frac{l_2}{\pi r_2^2}$

But l₁ = 6l₂, r₁ = (1/5)r₂, hence:

$R_1=\rho \frac{l_1}{A_1}=\rho *\frac{6l_2}{[\pi (1/5)r_2]^2} =150 * \rho \frac{l_2}{[\pi r_2]^2}=30*469=70350\ ohm$

The equivalent resistance (R) is:

$R=\frac{R_1R_2}{R_1+R_1}=\frac{469*70350}{469+70350} =466\ ohm$

The equivalent resistance of the two cylindrical conductors connected in parallel is 466 ohm.

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3 0

3 years ago

Volcanic and other such activity at the mid-Atlantic ridge extrudes material to fill the gap between separating tectonic plates

Svetach [21]

Answer:

Explained

Explanation:

The magnetization of rocks is found to reverse in a coordinated manner with distance from the ridge.The fact that it implies about the Earth's magnetic field is that the Earth's magnetic Field is able to reverse with time. And if we know the rate of time for spreading we can find the rate of reversal.

3 0

4 years ago

5. Bill is swimming and drops his swim goggles in the pool. He looks from above the top of the water to see where they fell and

Alexus [3.1K]

The interaction of light that distorted the image of where Bill's goggles appear to be is Refraction.

<h3>What happens to the speed of light when it hits water in a swimming pool?</h3>

The light slows down when it passes from the less dense air into the water, this slow down of the ray of light which causes the ray of light to change direction and then the changes the speed of the light that causes refraction.

The swimming pool appears shallow than it appear to be because the rays of light coming from the bottom of the swimming pool that is refracted by the water making the height of the swimming pool to be above the actual swimming pool bed and there by misleading the observer(Bill).

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4 0

1 year ago

PLEASE HELP ME!!!!!!!!!!!!!!!!

DENIUS [597]

Answer:

The linesegment 2 to 3.

Explanation:

Becuase time goes on increasing but distance is constant.

3 0

3 years ago