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1. A high-speed drill reaches 2500 rpm in 0.60 s .
A.) What is the drill's angular acceleration?
B.) Through how many revolutions does it turn during this first 0.60 s ?
2. Consider a current-carrying conductor of length L placed in a uniform magnetic field of strength B. Derive the force experienced by the conductor.
3. An 4.0-cm-tall object is 25.0 cm in front of a concave mirror with a focal length of 20 cm. Determine the position of the image. What is the magnification? What is the image size?
4.Find the capacitance of a parallel -plate capacitor with area 23 cm^2, separation distance 0.95 mm, and dielectric with constant 2.5. Use Epsilon 0 = 8.85 x 10^-12 C^2/N X M^2.
A 4.00kg block slides down a frictionless inclined plane with an acceleration 3.00,/s^2. What is the angle of the incline above the horizontal
Two C1 = 3.7 μF, C2 = 18.7 μF are charged individually to V1 = 14.2 V, V2 = 7.0 V. Calculate the final potential difference across the plates of the capacitors once they are connected
Tries 0/12 Calculate the magnitude of the electric field for the conducting sphere at a point 3.70 cm away from the center of the sphere.
You are standing on the surface of a small spherical moon whose radius is 6.30 x 10^4 m and mass of 8.00 x 10^18kg. What maximum height above the surface of the Moon will the rock reach
A 4.10g lead bullet traveling at300m/s is stopped by a large tree. what is the increase in temperature of the bullet
A 1.00-kg glider attached to a spring with a force constant of 25.0 N/m oscillates on a horizontal, frictionless air track. At t = 0 the glider is released from rest at x = -3.00 cm.
A "rocket car" is launched along a long straight track at t = 0 s. It moves with constant acceleration a1 = 1.2m/s2. At what time does the second car catch up with the first one
A transparent oil with index of refraction 1.15 spills on the surface of water (index of refraction 1.33), determine the thickness of the oil slick
if the radius of the equipotential surface of a point charge is 10.5 m, what are the magnitude and sign of the point charge
The number of radioactive nuclei in a particular sample reduces over a period of 10 d to one-sixteenth the original number. What is the half-life of these nuclei?
What is the smallest thickness of a soap film (n =1.36) that would appear black if illuminated by 470 nm light? Suppose there is air on both sides of the soap film.
Two identical converging lenses have focal lengths of 15 cm and are aligned on the same principal axis. What is the total magnification of the two lenses
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