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For each of the anatomical levers listed, indentify the class of lever represented; identify the fulcrum, effort point, and resistance point; and name the kind of movement favored by this type of lever.
a. Leg being flexed at knee by hamstrings
b. Leg being extended at knee by quadriceps
c. Pelvis being tilted to right by left quadriceps lumborum
d. Clavicle being elevated by tapezius I
e. Lower extremity being abducted by gluteus medius
f. From supine laying position, lower extremities being raised by hip flexors
g. From supping laying position, trunk being raised by hip flexors
A tennis player tosses a tennis ball straight up and then catches it after 1.86s at the same height as the point of release. What is the acceleration of the ball while it is in flight
At a distance r1 from a point charge, the magnitude of the electric field created by the charge is 345 N/C. At a distance r2 from the charge, the field has a magnitude of 120 N/C
A container of volume 0.52 m3 contains 3.1 mol of argon gas at 30°C. Assuming that argon behaves as an idealgas, find the total internal energy of this gas
An artificial satellite is moving in a circular orbit with a speed of 6.3 km/s and a period of 84.0 min. What is the acute angle between the radius vector and the total acceleration of the satellite
A rotating door is made from four rectangular sections, as indicated in the drawing. The mass of each section is 80kg. A person pushes on the outer edge of one section with a force of F = 72N that is directed perpendicular to the section. Find out..
A cable is 50.0 m long and has a diameter of 2.50 cm. A force of 10,000 N is applied to the end of the cable. what is the minimum tensile modulus allowed
A 42-cm-long solenoid, 1.8?cm in diameter, is to produce a 0.030-T magnetic field at its center. If the maximum current is 4.6 A
A police car is traveling east at 39.5 m/s along a straight road, overtaking a car ahead of it moving east at 32.0 m/s. What is the wavelength in front of the police car
What are the displacement and velocity of the point on the cord. What is the magnitude of the acceleration of one of the liners toward the other because of their mutual gravitational attraction.
Calculate the volume of a rectangular prism with a length of 5.6 cm, a width of 2.1 cm, and a height of 6.6 cm
A fighter jet is launched from an aircraft carrier with the aid of its own engines and a steam-powered catapult. The thrust of its engines is 3.40 x 105 N. What is the work done on the jet by the catapult
A man runs at a velocity of 4.5 m/s frao 15.0 min. When going up an increasingly steep hill, How far did he run
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