The players on Survivor need to start a fire to cook their food. One team member is farsighted, another is nearsighted. Whose glasses should they use to focus sunlight on the tinder?

A. The nearsighted person's.
B. The farsighted person's.
C. Either of them would work.


B. The farsighted person's.

Physics & Space Science

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____________ is the closest planet to the Sun

Fill in the blank(s) with correct word

Physics & Space Science

A baseball player is running to second base at 5.03 m/s. When he is 4.80 m from the plate he goes into a slide. The coefficient of kinetic friction between the player and the ground is 0.180, and the coefficient of static friction is 3.14

What is his speed when he reaches the plate? A) 1.96 m/s B) 2.56 m/s C) 4.47 m/s D) 2.89 m/s E) He stops before reaching the plate.

Physics & Space Science

Two beams of particles can be made to collide head-on at the point where the reactions are studied, providing a larger collision energy than from collisions with a stationary target. This must be true because to calculate available energy

A. actual velocities are more important than relative velocities. B. what counts is the velocity of the particles relative to the distant stars. C. what counts is the velocity of the particles relative to the Earth's rotation. D. actual velocities are less important than relative velocities.

Physics & Space Science

Most telephone cables are made of copper wire of either 24 or 26 gauge. If the resistance of 24-gauge wire is 137 W/mile and the resistance of 26-gauge wire is 220 W/mile, what is the ratio of the diameter of 24-gauge wire to that of 26-gauge wire?

a. 1.6 b. 1.3 c. 0.62 d. 0.79 e. 0.88

Physics & Space Science