All categories

2 years ago

How is the average American diet affected by our current food system?"

1 answer:

8 0

Poor diet is predominantly associated with weight gain and obesity; however, the harmful effects do not end there. Animal and human studies indicate that an unhealthy diet can contribute to the development of many diseases, like cardiovascular disease and cancer, and can even affect the brain.

You might be interested in

A practical machine cannot be 100% efficient? <br>please give me the answer.

RSB [31]

$\huge\color{Basic}{\boxed{\tt{answer}}}$

<h2>A practical machine cannot be 100% efficient? </h2>

IF THE CHOICES ARE TRUE OR FALSE THEN U GO
The answer is false a machine cannot be 100 percent efficient because the output of a machine is always less than input. (correct me if I’m wrong)

<h2>Have a great day<3</h2>

3 0

1 year ago

Read 2 more answers

What happens when two atoms collide?

SashulF [63]

The answer is A
energy is never gained or lost in a collision ITS JUST TRANSFERRED

3 0

2 years ago

Read 2 more answers

A book is on the table. If the weight of the book is 25 newtons, what is the magnitude and direction of the normal force?

PilotLPTM [1.2K]

Answer: E.

Explanation: because the book is on the table, its not really moving in any direction.

7 0

3 years ago

In Fig. 4-41, a ball is thrown up onto a roof, landing 4.00 s later at height h ???? 20.0 m above the release level. The ball’s

Yanka [14]

"Fig is attacted with answer"

Answer:

a) d = 33.72 m

b) $v_{i}$ = 26 m/s

c) β = 71.08°

Explanation:

When an object is thrown into the air under the effect of the gravitational force, the movement of the projectile is observed. Then it can be considered as two separate motions, horizontal motion and vertical motion. Both motions are different, so that they can be handled independently.

Given data:

time = t = 4.00 s

Height = h = 20 m

Angle = θ = 60°

Horizontal distance = d = ?

Using 2nd equation of motion

$h = v_{y_{f}}t + \frac{1}{2}gt^{2}$

-20 = $v_{y_{f}}$ (4) + 0.5(-9.8)(4)²

$v_{y_{f}}$ (4) = 58.4

$v_{y_{f}}$ = 14.6 m/s

This is vertical component of velocity when the ball is on the roof. To calculate the Final velocity and horizontal component, we use

$v_{f}$ = $v_{y_{f}}$ / sinθ

$v_{f}$ = 14.6 / sin 60

$v_{f}$ = 16.86 m/s

$v_{x_{f}}$ = $v_{f}$ cosθ

$v_{x_{f}}$ = 16.86 cos 60

$v_{x_{f}}$ = 8.43 m/s

To calculate the horizontal distance

d = $v_{y_{f}}$ t

d = (8.43)(4)

d = 33.72 m

We know the values of Landing angle, height of roof, time of flight. In part a, We calculate the landing velocity of the ball and also its horizontal and vertical component. As the ball followed the projectile path, and we know that in projectile motion the horizontal component of the velocity remain constant throughout his motion. So there is no acceleration along horizontal path.

So,

$v_{x_{f}}$ = $v_{x_{i}}$