3 years ago

1.What is a medulla? What do forensic scientists use this for?

1 answer:

4 0

A medulla is a group of cells that are going through hair, forensic scientist use it to find out the pigment, (color), and the shape.

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Which of the following contains the majority of the mass in the solar system?

Bingel [31]

First think which has less mass in the solar system. The sun is the largest object in the solar system, so the answer is C. the sun. Hope I helped! :P

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3 years ago

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How many ohms of resistance must be present in a circuit that has 240 volts and a current of 15 amps?

Mkey [24]

THE ANSWER IS 16 ohms or however its spelled

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3 years ago

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What is the deceleration of the rocket sled if it comes to rest in 1.1 s from a speed of 1000 km/h? (such deceleration caused on

Wewaii [24]

The deceleration of the rocket sled if it comes to rest in 1.1 s from a speed of 1000 km/h is $252.52\ m/s^2$ .

The acceleration in opposite direction is known as the deceleration. Basically the deceleration is negative value of the acceleration since the negative sign depicts its opposite in direction.

The given data:

time, t = 1.1 s

initial speed, u = 1000 km/h = $\frac{2500}{9}\ m/s$

final speed, v = 0 m/s

So we will be using the equation of motion, that is,

v = u + at

$\therefore 0=\frac{2500}{9} + a(1.1)$

$\Rightarrow a=-\frac{2500}{9(1.1)}$

$\therefore a = - 252.52 \ m/s^2$

Hence , the deceleration of the rocket is $252.52\ m/s^2$ .

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1 year ago

URGENT!!! DUE AT 11:59, PLEASE DON’T POST A LINK FOR THIS ANSWER AND BE STRAIGHT FORWARD! Bronco the skydiver, whose mass is 100

kirill [66]

a = 7.8 m/s^2

Explanation:

Let Fnet = net force = ma

m = mass of the skydiver

a = acceleration caused by Fnet

W = weight = mg

f(air) = frictional force due to air resistance

Fnet = W - f(air)

= (100 kg)(9.8 m/s^2) - (200 N)

= 780 N

Therefore, the acceleration of the skydiver due to Fnet is

a = Fnet/m

= (780 N)/(100 kg)

= 7.8 m/s^2

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3 years ago

A 50 N object is on Earth. What is its mass?

faust18 [17]

Answer: 5.10 KG

Explanation: W = 50 N

BY FORMULA

W = MG

M = W/G

M = 50 /9.8

M= 5.10 KG

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2 years ago