Physics, 03.09.2019 05:30 helplessstudent3
Two cars travel westward along a straight
highway, one at a constant velocity of
96 km/h, and the other at a constant velocity
of 113 km/h.
assuming that both cars start at the same
point, how much sooner does the faster car
arrive at a destination 24 km away?
how far must the cars travel for the faster car
to arrive 16 min before the slower car?
answer in units of km.
Answers: 2
Physics, 22.06.2019 21:20
Astone is dropped from the upper observation deck of a tower, 250 m above the ground. (assume g = 9.8 m/s2.) (a) find the distance (in meters) of the stone above ground level at time t. h(t) = (b) how long does it take the stone to reach the ground? (round your answer to two decimal places.) s (c) with what velocity does it strike the ground? (round your answer to one decimal place.) m/s (d) if the stone is thrown downward with a speed of 2 m/s, how long does it take to reach the ground? (round your answer to two decimal places.) s
Answers: 3
Physics, 23.06.2019 01:30
Hydroelectricity provides about 7 percent of the electricity generated in the united states. (a) explain how a hydroelectric power plant converts energy stored in water into electricity. (b) identify two factors that determine the amount of electricity that can be generated by an individual hydroelectricity power plant. (c) describe the two main types of land-based hydroelectric power plants. (d) describe two economic advantages and two environmental disadvantages of hydroelectricity.
Answers: 1
Physics, 23.06.2019 02:30
Aheavy boy and a lightweight girl are balanced on a massless seesaw. the boy moves backward, increasing his distance from the pivot point. what happens to the seesaw? it is impossible to predict without knowing additional information. the side the boy is sitting on will tilt downward. the side the girl is sitting on will tilt downward. nothing; the seesaw will remain balanced.
Answers: 2
Physics, 23.06.2019 07:20
An object that weighs 75n is pulled on a horizontal surface by a horizontal pull of 50 n to the right. the friction force on this object is 30 n to the left. what is the acceleration of the object?
Answers: 1
Two cars travel westward along a straight
highway, one at a constant velocity of
96 km/h...
highway, one at a constant velocity of
96 km/h...
History, 18.11.2020 17:50
History, 18.11.2020 17:50
Chemistry, 18.11.2020 17:50
Social Studies, 18.11.2020 17:50
Chemistry, 18.11.2020 17:50
History, 18.11.2020 17:50
Computers and Technology, 18.11.2020 17:50
Social Studies, 18.11.2020 17:50
Mathematics, 18.11.2020 17:50
History, 18.11.2020 17:50
Mathematics, 18.11.2020 17:50
Mathematics, 18.11.2020 17:50
Arts, 18.11.2020 17:50