An electron, initially moving at 2.0 × 104 m/s along the +x-axis, experiences a constant acceleration of 1010 m/s2 in the +y direction. How far from its starting point is the electron after 4.0 × 10-6 seconds?
A) 8.0 m
B) 11.3 m
C) 9.8 m
D) 11.3 cm
E) 8.0 cm
D
Physics & Space Science
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A straight 10-cm wire bent at its midpoint so as to form an angle of 90° carries a current of 10 A. It lies in the xy plane in a region where the magnetic field is in the positive z direction and has a constant magnitude of 3.0 mT. What is the magnitude of the magnetic force on this wire?
A. 3.2 mN B. 2.1 mN C. 5.3 mN D. 4.2 mN E. 6.0 mN
Physics & Space Science
A testable explanation for a natural phenomenon is a(n):
a. experiment b. hypothesis c. prediction d. model e. conclusive description
Physics & Space Science
Describe the plate tectonic theory
What will be an ideal response?
Physics & Space Science
The resistance of a wire does not change when its temperature changes
a. True b. False Indicate whether the statement is true or false
Physics & Space Science