From the list below, which name appears in two different parts of the body? *

How is the pool play helping Adam lift the object

lorasvet [3.4K]

Adam applies and input force to the pulley as he pulls down to lift the object. As he does this, Adamwonders about how the pulley is helping him

8 0

3 years ago

A simple circuit consists of a light bulb connected to the terminals of a battery. A voltmeter shows a potential difference of 1

larisa [96]

<h2>Answer:</h2>

38.14Ω

<h2>Explanation:</h2>

Let's solve this question using Ohm's law which states that the current (I) flowing through a conductor is directly proportional to the potential difference or voltage (V) across it. Mathematically;

V = I R -------------------(i)

Where;

R is the constant of proportionality called resistance of the conductor and is measured in Ohms (Ω)

From the question;

V = 18.5V

I = 0.485A

Substitute these values into equation (i) as follows;

18.5 = 0.485 x R

Solve for R;

R = 18.5 / 0.485

R = 38.14Ω

Therefore the resistance of the bulb is 38.14Ω

6 0

3 years ago

We can block light by placing obstacles in its path, but it’s much more difficult to block sound. Why?

Olin [163]

Sound spreads through some kind of medium. Most of the time the medium is usually air. Sound can go through walls, like when you are playing really loud music and the neighbors tell you its to loud, you can't block it because it can travel through objects. Light does not need a medium to travel with. if you put a light in a room with no windows and no cracks, and you seal off the door the light can't escape that room, but if you did the same thing with sound it would travel trough the walls.

7 0

3 years ago

Read 2 more answers

a steel ball rolls horizontally off the edge of a tabletop that is 1.0 m high. it strikes the floor at a point 2.0 m horizontall

Sauron [17]

The ball in the air is for 0.319 sec.

The horizontal pace of a projectile is regular (in no way converting in value), and there's a vertical acceleration because of gravity; its cost is 9.8 m/s/s, down, The vertical speed of a projectile changes via nine.8 m/s every second, The horizontal motion of a projectile is impartial to its vertical movement.

Projectile motion is a form of motion experienced with the aid of an object or particle that is projected in a gravitational field, such as from Earth's floor, and movements alongside a curved route below the action of gravity best.

Projectile motion is the movement of an object thrown (projected) into the air. After the initial force that launches the item, it most effectively reports the pressure of gravity. The object is known as a projectile, and its route is called its trajectory.

Calculate:-

H = ut + 1/2 gt²

Since the vertical initial velocity is 0.

H = 0 +gt²

t = $\sqrt{ \frac{H}{g}$

= $\sqrt{ \frac{1}{9.8}$

= 0.319 sec.

Learn more about projectile motion here:-brainly.com/question/10680035

#SPJ4

6 0

1 year ago

A 43 kg box is being pushed and pulled by

m_a_m_a [10]

Answer:

a = - 0.209 [m/s²]

Explanation:

To solve this problem we must use Newton's second law which tells us that the sum of forces on a body is equal to the product of mass by acceleration.

∑F = m*a

We will take the positive forces to the right and the negative forces to the left.

$155-277+113=43*a\\-9=43*a\\a = - 0.209[m/s^{2} ]$

The negative sign means that the box accelerates in a negative direction to the left.

4 0

3 years ago