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While a person is walking, his arms swing through approximately a 45.0 degree angle in 0.510 s . As a reasonable approximation, we can assume that the arm moves with constant speed during each swing. A typical arm is 70.0 cm long, measured from the shoulder joint.
What is the acceleration of a 1.30 gram drop of blood in the fingertips at the bottom of the swing?
Find the force that the blood vessel must exert on the drop of blood in part (a).
What force would the blood vessel exert if the arm were not swinging?
A fireman, 25.6 m away from a burning building, directs a stream of water from a ground level fire hose at an angle of 39.5° above the horizontal
Two objects with masses of 3.90 kg and 6.40 kg are connected by a light string that passes over a frictionless pulley, Determine the acceleration of each object
The pressure inside a gas bottle at 23.4 °C is 4350 kPa. What will be the pressure inside the bottle
A small glass bead has been charged to +19 nC. A metal ball bearing 1.0 cm above the bead feels a 0.020 N downward electric force. What is the charge on the ball bearing
Wavelengths of light from a remote galaxy are found to be 1.5 % longer than the corresponding wavelengths measured here on earth. What ids the speed of the galaxy relative to earth
A 545-turn circular-loop coil with a diameter of 18.8 cm is initially aligned so that its plane is perpendicular to the Earth's magnetic field, What is the value of the Earth's magnetic field
Find out the distance between the point of firing and the point at which the 2.6-kg fragment strikes the ground.
A pendulum has a mass of 3.7 kg, a length of 1.7 meters, and swings through(half)arc of 28.1 degrees. What is its amplitude to the nearest centimeter? what is the total energy of the pendulum
A 2.4 kg iron ball is dropped from a height of 14 m onto a concrete roadway, What is the ball's increase in temperature
Two thin, isolated, concentric conducting spheres of radii 5.10 cm and 14.40 cm, have net charges of 23.00 nC, What is the electric potential at 3.315 cm from the center of the spheres
By calculation, determine the wavelength of three principal visible lines of hydrogen from energy transitions n=3, 4
q1. what are the average velocity and acceleration of the tip of an hour hand of a clock in the interval of noon to
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