Vision Problems: A farsighted girl has a near point at 2.0 m but has forgotten her glasses at home. The girl borrows eyeglasses that have a power of +2.75 diopters. With these eyeglasses, what is the near point of the girl, assuming that she wears them extremely close to her eyes?

A. 28 cm
B. 31 cm
C. 33 cm
D. 37 cm
E. 40 cm


Answer: B

Physics & Space Science

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Physics & Space Science

An astronaut is in equilibrium when he is positioned 140 km from the center of asteroid X and 581 km from the center of asteroid Y, along the straight line joining the centers of the asteroids. What is the ratio of the masses X/Y of the asteroids?

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A 95-N force exerted at the end of a 0.32-m long torque wrench produces a torque of 15 N ? m. What is the angle (less than 90°) between the wrench handle and the direction of the exerted force?

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Physics & Space Science

The flat, distorted maps of the world are ______________

Fill in the blank(s) with correct word

Physics & Space Science