A tennis player receives a shot with the ball of mass 0.06 kg traveling horizontally at 50.0 m/s and returns the shot with the ball traveling horizontally at 40.0 m/s in the
opposite direction.
(i) What is the impulse delivered to the ball by the racquet?
(ii) How much work does the racquet do on the ball?

Ineed extreme for task 2. my student number is 571721. many to whoever solves this correctly, im in debt to you.

Which sound characteristic is not affected by the relative motion of an object

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.