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2 years ago

6

Is a type of passive transport that requires a pore or channel to move solutes.

1 answer:

Maru [420]2 years ago

8 0

Answer:

¨ Facilitated diffusion is the diffusion of solutes through transport proteins in the plasma membrane. Facilitated diffusion is a type of passive transport. Even though facilitated diffusion involves transport proteins, it is still passive transport because the solute is moving down the concentration gradient.¨

Explanation:

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If light needs matter , how doe it move through space? this is my first question.

Assoli18 [71]

Light is not matter. A photon is not matter because it has no mass. So rephrase your question...

7 0

3 years ago

1. A 0.40 kg ball is launched at a speed of 16 m/s from a 22 m cliff.

Masja [62]

Answer:

51.2 J, 86.2 J, 137.4 J

Explanation:

The kinetic energy of the ball is given by:

$K=\frac{1}{2}mv^2$

where

m = 0.40 kg is its mass

v = 16 m/s is its speed

Substituting,

$K=\frac{1}{2}(0.40)(16)^2=51.2 J$

The potential energy of the ball is given by

$U=mgh$

where

m = 0.40 kg

$g=9.8 m/s^2$ is the acceleration of gravity

h = 22 m is the heigth of the cliff

Substituting,

$U=(0.40)(9.8)(22)=86.2 J$

Finally, the total mechanical energy is the sum of the kinetic energy and the potential energy:

$E=K+U=51.2 + 86.2=137.4 J$

4 0

2 years ago

A car travels 10 meters east in 4 seconds. What is the car's velocity? *

MrMuchimi

Answer:

your velocity is 2.5 m/sec

6 0

2 years ago

Read 2 more answers

Gravitational force between two objects increases as mass increases and distance

Tems11 [23]

Distance decreases.

6 0

2 years ago

a high speed train travels with an average speed of 250 km/h. the train travels for 2 hrs. how far does the train travel

steposvetlana [31]

Answer:

<h3>The answer is 500 km </h3>

Explanation:

The distance covered by an object given it's velocity and time taken can be found by using the formula

<h3>distance = average velocity × time</h3>

From the question

average speed = 250 km/h

time = 2 hrs

We have

distance = 250 × 2

We have the final answer as

<h3>500 km</h3>

Hope this helps you

5 0

2 years ago

Read 2 more answers