A point charge (5.0 pC) is located at the center of a spherical surface (radius = 2.0 cm), and a charge of 3.0 pC is spread uniformly upon this surface. Determine the magnitude of the electric field 1.0 cm from the point charge

a. 0.72 kN/C
b. 0.45 kN/C
c. 0.63 kN/C
d. 0.90 kN/C
e. 0.18 kN/C


B

Physics & Space Science

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A spherical conductor (radius = 1.0 cm) with a charge of 2.0 pC is within a concentric hollow spherical conductor (inner radius = 3.0 cm, outer radius = 4.0 cm) which has a total charge of -3.0 pC. What is the magnitude of the electric field 2.0 cm from the center of these conductors?

a. 23 N/C b. zero c. 45 N/C d. 90 N/C e. 110 N/C

Physics & Space Science

Energy Conservation With Conservative Forces: The figure shows a famous roller coaster ride. You can ignore friction. If the roller coaster leaves point Q from rest, what is its speed at the top of the 25-m peak (point S)

A. 10 m/s B. 22 m/s C. 44 m/s D. 62 m/s E. 120 m/s

Physics & Space Science

A rock found on Earth that crashed down from space is called a(n)

A) meteorite. B) meteor. C) asteroid. D) impact.

Physics & Space Science

Which of the two signs shown below would indicate the greatest danger?

Physics & Space Science