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Ellywick decides to try to move through a forest by brachiation, swinging below a handhold to move forward to the next handhold. Weighing a petite 40 kg, Ellywick has an arm length (hand to shoulder) of 0.60 m. We can model her motion as that of a point mass swinging at the end of a 0.60-m-long, massless rod. At the lowest point of her swing, Ellywick is moving at 3.7 m/s. What upward force must a branch provide to support the swinging Ellywick? 

  Carlin hangs a sign in front of her shop with a cable held away from the building by a lightweight pole. The cable makes an angle of 60 degrees with the wall, and the sign hangs from the edge of the pole, which has a length of 1.5 m and is perpendicular to the wall. Once the sign is set up, Carlin measures a tension in the cable of 200 N. What is the mass of the sign?

Fabien leaps off the edge of a cliff, not realizing he would die from the fall. Luckily his friend Gimble snares him with a lasso connected to a 4 m long rope. Once Fabien is hanging stationary with Gimble bravely holding the other end of the rope, Gimble notices that the rope has stretched by 10 cm. Assuming the rope has a diameter of 3 cm and Fabien has a mass of 22 kg, what is the Young’s modulus of the rope?

Luthra spins a 750 g, 35-cm-diameter uniform plastic disk on an axle through its center by an electric motor. What torque must Luthra set the motor to apply to take the disk from 0 to 2000 rpm while spinning through 150 rotations?

Dalaba swings a small block of mass M = 6.0 kg in a horizontal, circular path on a frictionless surface from a spring. One end of the spring is fixed to the center of the circle and the other end is fixed to the block. The relaxed length of the spring is 25 cm, which then stretches to a total length of R = 30 cm during the circular motion. If Dalaba measures an angular speed of 3.5 rad/s, what is the spring constant for the spring k?

Curare is a poisonous plant extract. Curare molecules have a chemical structure like the neurotransmitter acetylcholine. Curare can bind to the acetylcholine receptor site on the chemically gated ion channels in the motor end plate. Even though curare will bind to the receptor site it will not open the ion channel and no ions will pass through. What do you think the symptoms of curare poisoning would look like?

Bimpnottin the astronaut enters an orbit around a foreign planet of mass 4.50 

Unvera is operating an apparatus containing a flywheel, which accelerates from rest to its maximum angular speed of 25 rpm, turning through 55 revolutions in the process. How long does Unvera’s flywheel take to accelerate to its maximum speed?

POC 17 – PP The nurse is caring for a client that delivered a 9lb -10 oz healthy baby girl two hours ago following a normal spontaneous precipitous vaginal delivery with a 2nd degree laceration.  The EBL was approximately 750mL.  The nurse notes on assessment: VS: HR 106, RR 26, BP 90/50, Temp 99.9, skin is cool and clammy to touch.  Which action is the highest priority in the care of this client?   

Ellywick decides to try to move through a forest by brachiation, swinging below a handhold to move forward to the next handhold. Weighing a petite 40 kg, Ellywick has an arm length (hand to shoulder) of 0.60 m. We can model her motion as that of a point mass swinging at the end of a 0.60-m-long, massless rod. At the lowest point of her swing, Ellywick is moving at 2.9 m/s. What upward force must a branch provide to support the swinging Ellywick?