In the electron double-slit experiment, the Schroedinger equation enables scientists to predict
A) the overall pattern made by a large number of electron impacts on the screen.
B) which slit the electron will come through.
C) the pattern that one single electron will produce when it hits the screen.
D) the precise position and velocity of each electron.
E) the place at which each electron will hit on the screen.
A
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Thin Lenses: A 4.0-cm-tall object is placed 50.0 cm from a diverging lens having a focal length of magnitude 25.0 cm. What is the nature and location of the image?
A. A real image, 4.0 cm tall, 20 cm other side of the object B. A virtual image, 4.0 cm tall, 20 cm other side of the object C. A virtual image, 2.0 cm tall, 10 cm other side of the object D. A virtual image, 1.3 cm tall, 16.7 cm same side as the object E. A real image, 1.3 cm tall, 16.7 cm same side as the object
The explosion in a cannon exerts an average force of 30,000 N for L meters, the length of the cannon. The length of the cannon to shoot a 2.00 kg projectile from the cannon on the earth to the moon is
A. 2.75 km. B. 3.01 km. C. 3.98 km. D. 4.26 km. E. 5.02 km.
When two or more resistors are connected in parallel to a battery
A) the voltage across each resistor is the same. B) the total current flowing from the battery equals the sum of the currents flowing through each resistor. C) the equivalent resistance of the combination is less than the resistance of any one of the resistors. D) all of the other choices are true.
1010 Bq = ______ Ci?
a. 2.7 × 10^-11 c. 0.27 b. 3.7 d. 3.7 × 10^10