How much does the board weigh
A see saw is made of a uniform board 2.6 m long. A girl weighing 440 N sits on the left end, and a boy weighing 640 N sits on the right end. The see saw is balanced when the board is pivoted 1.1 m from the right end. How much does the board weigh?
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A steel tank contains a large quantity of compressed air. When the tank is submerged for an hour in a cold-water tank, the air loses 245 J of heat to the water. What is the change in the internal energy of the air?
A material contains 50.0 grams of carbon 14, and is 300,000 years old. It has a half life of 5730 years. What was its original mass?
A 1.4 kg block is attached to a horizontal spring with spring constant 2800N/m. The block is at rest on a frictionless surface. A 8.90g bullet is fired into the block, in the face opposite the spring, and sticks. What was the bullet's speed if the
A force of 70 N exerted at an angle of 30 degrees below the horizontal on a block of mass 8 kg that is resting on a table. What is the magnitude of the net force on the block in the x direction if the coefficient of kinetic friction is 0.1?
A dry cell does 7.5. J of work through chemical energy transfer 5.00 C between terminals of the cell. What is the electric potential between the two terminals?
A potter's wheel having a radius 0.47 m and a moment of inertia 10.9 kg·m2 is rotating freely at 46 rev/min. The potter can stop the wheel in 7.0 s by pressing a wet rag against the rim and exerting a radially inward force of 68 N. Find the
Find the potential difference V1 - V2. Point 1 is at the center of the plastic sphere, and point 2 is just outside the sphere.
A 61-kg skier is going down a slope oriented 32° above the horizontal. The area of each ski in contact with the snow is 0.13 m2. Determine the pressure that each ski exerts on the snow.
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content area top Part 1 Which one of the following techniques for substance use disorder treatment can be described as a? "client-centered,
Problem: Which of the following student characteristics causes an increase in the use of metacognitive strategies?
Please define your personal physical boundaries through providing examples of what they are and how you reinforce them
Your exploration of the customs of shaking hands and using "please" and "thank you" beautifully illustrates Skinner's concept of social-physical contingencies
In class, we discussed some of the pros and cons of automatic and controlled thinking.
Select a target behavior of your own (or ask for permission to record a friend's/family member's behavior), and conduct an ABC assessment.
Grant's mom tells him to take out the trash tomorrow morning before he leaves for school. She tells him not to be absentminded and forget