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Archaeologists often find only parts of ancient human remains. For example, they may find a small finger bone, called the metacarpal bone. Is it possible to predict the height of a human from the length of his or her metacarpal bone? To investigate, a researcher measures the heights and metacarpal lengths of 200 adults. In making the scatterplot, the researcher should
A. plot the height of the person on the horizontal axis.
B. plot the metacarpal length on the horizontal axis.
C. first determine if the heights of humans follow a Normal distribution.
D. use a plotting scale that makes the overall trend roughly linear.
A Carnot engine has a power output of 130 kW. The engine operates between two reservoirs at 20°C and 500°C, How much energy does it take in per hour
A 5.7kg box is on a frictionless 44° slope and is connected via a massless string over a massless, find the tension in the string once the box begins to move
a step-up transformer has 50 turns on the primary coil and 500 turns on the secondary coil. if this transformer is to
A charged particle with a charge-to-mass ratio of |q|/m = 5.7 108 C/kg travels on a circular path that is perpendicular to a magnetic field whose magnitude is 0.75 T
A space probe is fired as a projectile from the Earth's surface with an initial speed of 1.78 x 10^4 m/s. What will its speed be when it is very far from the Earth
A magnetic field has a magnitude of 0.0011 T, and an electric field has a magnitude of 4.4 × 103 N/C. obtain the magnitude of the net force that acts on the charge
A coin rests 14.0 cm from the center of a turntable. The coefficient of static friction between the coin and turntable surface is 0.440. what is the angular velocity of the turntable
a cosmic ray particle travels directly over a soccer field from one goal line to the other at a speed of 0.522c. if the
A student sits on a rotating stool holding two 7.00 kg objects. When his arms are extended horizontally, the objects are 0.80 m from the axis of rotation, Find the new angular speed of the student
A sample of an unknown material appears to weigh 280 N in air and 180 N when immersed in alcohol of specific gravity 0.700. What is the density of the material
A 9000pF capacitor holds plus and minus charges of 1.35×10?7C . What is the voltage across the capacitor
A total charge Q = 2.7 mC is distributed uniformly over a quarter circle arc of radius a=9.3 cm, What is lamda the linear charge density along the arc
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