A student applies a force to a cart to pull it up an inclined plane raised to 30 degrees above the horizontal at constant speed during a physics lab. A force of 20.8 N is applied parallel to the incline to lift a 3.00-kg loaded cart to a height of 0.450 m along an incline which is 0.636-m long. (4 pts) Determine the work done upon the cart Determine the potential energy change of the cart.

The passing of heat through a material while the material itself stays in place. a. radiation b. conduction c. convection

If you put a helium-filled balloon in the refrigerator, what will happen?

The chart shows the costs and shipping times for materials that a company needs to build a new product. which describes the best trade-off if the company needs to start building their product within the next two years? they should order the domestic materials because it is always best to choose the fastest shipping time. they should order the imported materials because it is always best to choose the lowest cost for materials. since the shipping time is longer, they should order the domestic materials because the additional cost is worth it to get the materials in time. even though the shipping time is longer, they should order the imported materials because they are less expensive and should arrive in plenty of time to build the product.