An ice hockey puck of mass 170 g enters the goal with a momentum of < 0,0, -6.6 > kg·m/s, crossing the goal line at location < 0,0, -29 > m relative to an origin in the center of the rink. the puck had been hit by a player 0.4 s before reaching the goal. what was the location of the puck when it was hit by the player, assuming negligible friction between the puck and the ice? (note that the ice surface lies in the x⁢z plane. express your answer in vector form.)

How can you increase the strength of an electromagnet?

Charge is distributed along the entire x-axis with uniform density λ. how much work does the electric field of this charge distribution do on an electron that moves along the y-axis from y = a to y = b? (use the following as necessary: a, b, ε0, λ, and q for the charge on an electron.)

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.