According to the impulse-momentum equation Ft = change in (mv), a bungee jumper in fall has momentum which is reduced by the force F exerted by the bungee cord. If m is the mass of the jumper, then v in the equation is the speed of the

A) jumper.
B) cord.
C) both A and B
D) none of the above


A

Environmental & Atmospheric Sciences

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As a ball falls, the action force is the pull of Earth's mass on the ball. The reaction force is

A) the air resistance acting against the ball. B) the acceleration of the ball. C) the pull of the ball's mass on Earth. D) nonexistent in this case. E) none of the above

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The debris flow of Nevados HuascarĂ¡n (Peru) travelled down valleys at speeds of ________ per hour.

A. 130 km (80 mi) B. 170 km (105 mi) C. 200 km (124 mi) D. 210 km (130 mi)

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The GOES satellites monitoring the weather of the United States are ________

A) no longer used B) geostationary C) responsible for x-ray analyses of clouds D) orbiting Earth at an altitude of 80 kilometers E) orbiting from pole to pole (polar orbiting)

Environmental & Atmospheric Sciences

Scientists have not yet succeeded in cloning animals

Indicate whether the statement is true or false.

Environmental & Atmospheric Sciences