The ocean is a vast reservoir of kinetic energy, but it's also a challenging place to generate electricity. Which of these does NOT present a challenge when using wave energy to provide electrical energy?

A.)Waves are too inconsistent to be useful

B.)Salt water can corrode metal components

C.)Storms and forceful waves can damage power systems or loosen them from their moorings

D.)Barnacles and other sea creatures can cling to exposed surfaces, blocking intakes and weighing down machinery

An uplifted block of rock between two normal faults

A20 cm long spring is attached to a wall. the spring stretches to a length of 22 cm when you pull on it with a force of 100 n. what is the spring constant

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.