A200.0 g ball is traveling at 4.5 m/s left when it collides with a 150 g ball, which is traveling to the right at 3.2 m/s. if the two balls stick together, what is their final velocity after the collision? a. 1.2 m/s [right b. 1.2 m/s [left c. 3.9 m/s [right d. 3.9 m/s [left 6. a coyote can accelerate at 3.40 m/s2, if it starts at rest, how long does it take the coyote to reach its maximum speed of 17.5 m/s? a. 4.14 s b. 5.15s c. 2.57 s d. 59.5 s 7. a ball is thrown from a height of 1.00 m above the ground with a speed of 15.0 m/s at an angle of 40.0° above the horizontal. how high up will it strike a wall which is 3.50 m away? a. 3.48 m b. 0.305 m c. 1.31 m d. 2.48 m 8. a ring is attached to a 1.35 m long string and spins in a horizontal circle on a frictionless table. if the ring starts at rest, then reaches an angular velocity of 4.25 rad/s after 2.50 s, what is the tangential acceleration of the ring? a. 1.26 m/s2 b. 1.85 m/s2 c. 1.70 m/s2 d. 2.30 m/s2 9. a hollow basketball is rolling from rest from the top of a 3.70 m high ramp what is the ball's speed when it reaches the bottom of the ramp? a. 4.92 m/s b. 6.60 m/s c. 6.95 m/ d. 6.02 m/s

he made 11 calls in one day

so here is the information for current research:

-nrel's geothermal analysts, scientists, and engineers perform a full range of research from developing advanced methods of locating and accessing geothermal resources to exploring innovative technologies to extract and produce clean energy from the heat of the earth

and here is the information for the technology of geothermal energy:

-it's clean and sustainable

-resources of geothermal energy range from the shallow ground to hot water and hot rock found a few miles beneath the earth's surface, and down even deeper to the extremely high temperatures of molten rock called magma

-almost everywhere, the shallow ground or upper 10 feet of the earth's surface maintains a nearly constant temperature between 50° and 60°f (10° and 16°c)

-geothermal heat pumps can tap into this resource to heat and cool buildings

-a geothermal heat pump system consists of a heat pump, an air delivery system (ductwork), and a heat exchanger-a system of pipes buried in the shallow ground near the building

-in the winter, the heat pump removes heat from the heat exchanger and pumps it into the indoor air delivery system

-in the summer, the process is reversed, and the heat pump moves heat from the indoor air into the heat exchanger

-the heat removed from the indoor air during the summer can also be used to provide a free source of hot water

do you have a formula possibly

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