A particle (charge 7.5 ?C) is released from rest at a point on the x axis, x = 10 cm. It begins to move due to the presence of a 2.0-?C charge which remains fixed at the origin. What is the kinetic energy of the particle at the instant it passes the point x = 1.0 m?
A. 3.0 J
B. 1.8 J
C. 2.4 J
D. 1.2 J
E. 1.4 J
Answer: D
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________ is the smallest planet in the solar system
Fill in the blank(s) with correct word
A thin-walled spherical tank with a diameter of 1.5 m and wall thickness of 65 mm has an internal pres- sure of 20 MPa. The maximum shear stress in the wall of the tank is approximately:
(A) 58 MPa
(B) 67 MPa
(C) 115 MPa
(D) 127 MPa
Match the planet's position at points 1, 2, 3, and 4 in the plot with the descriptions in question 3.
What will be an ideal response?
An object moving in a circle at a constant speed is
A. accelerating in the direction of motion. B. accelerating toward the center of the circle. C. accelerating away from the center of the circle. D. not accelerating because its speed is constant.