A 0.045-kg ball moving to the right with a speed of 15 m/s is struck by a racket, causing it to move to the left with a speed of 15 m/s.  If the ball remains in contact with the racquet for 0.030 s, what is the magnitude of the average force exerted on the ball?

A planet completes one rotation about the axis passing through its poles in 7.5 × 104 s.  Given this information, what is the angular speed of the planet about its axis?

While transporting an intubated 6-year-old submersion victim to the hospital from a scene, you note the patient’s heart rate changes from 122 to 64 gradually during transport. His skin color was pink and is now pale and cold to the touch. After confirming the endotracheal tube is still in place, what another likely cause for the heart rate change?

You are responding emergency mode to an incident involving a shooting and a police car is providing an escort through heavy traffic. How should you proceed through busy intersections to avoid a collision?

Your transporting a 70-year-old male in cardiogenic shock. He remains hypotensive after 3 boluses of normal saline. Medical control has ordered you to administer dopamine at 5 mcg/kg/min and titriate to systolic blood pressure of 110.  Mr. Lincoln weighs about 165 pounds. Your service carries premixed dopamine of 400mg in a bag of 250 ml. Utilizing microdrip tubing, at what drip rate (drops per minute) will you administer the medication?

You are treating a 17-year-old female who had a “fluttering feeling” in her chest. The patient’s history is that she is seeing her personal physician for intermittent fainting spells. The patient complains of the fluttering feeling again and becomes unresponsive. The patient has a weak carotid pulse, is breathing at 32 times per minute, and the monitor shows a Tachycardia at a rate of 230.  Identify the rhythm below and the next most appropriate treatment.  

You are dispatched to an adult foster care home for a male patient that has aspirated and is currently suffering from septic shock. When reviewing the DNR order, which of the following treatments is most likely restricted?

You have responded to a 26-year-old female who is 8 months pregnant and was involved in a minor vehicle accident. Her only complaint is neck pain and a twisted ankle. Her vital signs are heart rate 100, respirations 26, blood pressure of 110/60 and her capillary refill is at 4 seconds. You have immobilized the patient on a long board and splinted the ankle. During transport she becomes confused, her respirations and pulse increase and her blood pressure decreases. Which of the following should you do next?

A 12-year-old has a 6-centimeter laceration on his anterior forehead. He asks you if getting stitches will hurt. Which of the following would be the best response to his inquiry?

You are called to the scene of a 27-year-old male complaining of severe chest pain. He is experiencing difficulty breathing and his blood pressure is 70/40. As you are obtaining your ECG, he becomes unresponsive though retains a pulse and respirations. After performing your initial treatment, the patient becomes pulseless and apneic, and you see the rhythm below. Which of the following should you do first?