All categories

4 years ago

An intellectual disability that is environmental in origin has a specific physical cause.

Physics

2 answers:

kvv77 [185]4 years ago

8 0

Answer:

The answer is actually false ;;

Roman55 [17]4 years ago

6 0

The answer to this is T

You might be interested in

If the object starts at point A what is the total energy of the system?

Oxana [17]

The total energy of the system is 88.2 J

Explanation:

The total (mechanical) energy of an object is given by:

$E=PE+KE$

where

PE is the potential energy

KE is the kinetic energy

At the starting point, the object is at rest: this means that its kinetic energy is zero, so all its energy is potential energy, which is given by

$PE=mgh$

where

m is the mass of the object

g is the acceleration of gravity

h is the height of the object

In this problem, we have (at point A):

m = 3.0 kg

$g=9.8 m/s^2$

h = 3.0 m

Substituting, we find:

$E=U=(3.0)(9.8)(3.0)=88.2 J$

Learn more about potential energy:

brainly.com/question/1198647

brainly.com/question/10770261

#LearnwithBrainly

8 0

3 years ago

By now, you know that sound is produced by vibrations. These vibrations can travel through solids, liquids, and gases, but not t

mamaluj [8]

I think d because it's too far to reach.

3 0

4 years ago

Read 2 more answers

How to do this question

Yuki888 [10]

Answer:

64°

Explanation:

The triangle is an isosceles triangles (both legs are equal to the radius of the circle), so that means the base angles are the same.

Angles of a triangle add up to 180°, so:

128 + 2x = 180

2x = 52

x = 26

∠1 is complementary to the base angle, so:

∠1 = 90 − 26

∠1 = 64

7 0

3 years ago

A ball tossed vertically upward from the ground next to a building passes the bottom of a window 1.8 s after being tossed and pa

VLD [36.1K]

The ball takes 0.2 sec to travel the height of the window, which is 2 m.

Then the speed of the ball at that time was

$v = \frac{d}{t}$

$v = \frac{2}{0.20}$

$v = 10\ \frac{m}{s}$

We know that:

$v = v_0 -gt$

Where $v_0$ is the initial velocity.

So:

$10 = v_0 -9.8(2)$

$10 + 9.8(2) = v_0$

$v_0 = 29.6\ m / s$

Then we have the equation for the position as a function of time.

$r = r_0 + v_0t - \frac{1}{2}gt^2$

Where

$r_0$ = initial position

r = position as a function of time

$v_0$ = initial velocity

g = acceleration of gravity

t = time.

If the ball is thrown from the ground then:

$r_0$ = 0 m

We want to find now the distance between the window and the ground.

When the ball reaches the bottom of the window t = 1.8s

So:

$r = 0 + 29.6(1.8) - 0.5(9.8)(1.8)^2$

$r = 37,404$ m

The window is 37,404 m high

Finally, to know how high the ball rises we must know at what moment the vertical velocity of the ball is zero.

$v = v_0 -gt\\\\0 = v_0 -gt\\\\gt = v_0\\\\t = \frac{29.6}{9.8}$

$t = 3.02\ s$

Now we replace t in the position equation

$r = 0 + 29.6(3.02) -0.5(9.8)(3.02)^2$

$r = 44.70\ m$

The ball reaches up to 44.70 m in height.

3 0

4 years ago

Write a use of magnetic force and frictional force each

Firdavs [7]

Magnetic force:Computer hard drives use magnetism to store the data on a rotating disk. More complex applications include: televisions, radios, microwave ovens, telephone systems, and computers. ... Frictional force:Quite often uses of friction can be seen from how things would be without friction.

7 0

3 years ago