A2.53 kg particle has a velocity of vx = 6.8 m/s and vy = 7.21 m/s. find the magnitude of its total momentum. answer in units of kg · m/s.

The step-down transformer gives a current of 10a at 24v if the primary voltage is 240v calculate the 1_primary current 2_the power input 3_the power output

Work out sian speed for the first 30 minutes of her journey. give your answer in km/h.

Engineers find a new metal that is stronger than steel but much lighter. this material is also significantly cheaper than what is currently used for most aircraft, available in large quantities, and easy to manufacture. the engineers are excited because this new material will lower the costs of buying and operating airplanes for companies. what is probably the best step for the engineers to make next?