Answer: option B. there are 35 mg of lead in 1.0 L of this solution

Explanation:

1ppm = 1mg/L

Therefore 35ppm = 35mg/L

So, the solution contains 35mg of lead in 1L of the solution

**Answer:**

is there a picture of the problem

**Explanation:**

How to find net force

The net force is the vector sum of all forces act upon an object.

The formula to calculate net force is Fnet = ma

where the net force is equal to the mass of an object (in Kg) multiplied by the acceleration of the object (in meters per second squared)

You may also calculate the net force acting upon an object with Fnet = Fa + Ff

where the net force is equal to the sum of the applied force and the force of friction.

hope that helped

The muscular and skeletal systems work together to provide a structural framework for movement... The combined organ systems are sometimes called the musculoskeletal system... When you want to move, signals travel from your brain to your skeletal muscle cells. The muscle cells then contract, or get shorter. Tendons connect the muscles to the bones. As muscles contract, they pull on the tendons which move the bones. Skeletal muscles often work in pairs, as the biceps and triceps of the arm.