Quarks can only have a charge of +(2/3)e or -(1/3)e, while antiquarks can only have charges of -(2/3)e or +(1/3)e
Indicate whether the statement is true or false
TRUE
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A horse and rider travel in a region in which the vertical component of the Earth’s magnetic field is 0.035mT, while the horizontal component is 0.022mT. Attached to the horse’s bridle is a metal bit, a cylinder approximately 15cm long, in the horse’s mouth that is oriented horizontally. If the horse is galloping at 15m/s, what is the induced potential difference between the ends of the bit?
A. 79mV B. 93mV C. 50?V D. 93?V E. 50mV F. 79?V
Astronomers have found that the expansion of the Universe is ________.
A. speeding up B. changing randomly C. constant D. slowing down
To drive a typical car at 40 mph on a level road for one hour requires about 3.2 × 107 J of energy. Suppose we tried to store this much energy in a spinning, solid, uniform, cylindrical flywheel
A large flywheel cannot be spun too fast or it will fracture. If we used a flywheel of diameter 1.2 m and mass 400 kg, what angular speed would be required to store 3.2 × 107 J? A) 3600 rad/s B) 940 rad/s C) 530 rad/s D) 5500 rad/s E) 1800 rad/s
An object 3.4 mm tall is placed 25 cm from the vertex of a convex spherical mirror. The radius of curvature of the mirror has a magnitude of 52 cm
(a) How far is the image from the vertex of the mirror? (b) What is the height of the image? What will be an ideal response?