Answers: 2
Physics, 22.06.2019 19:30
Aplayground slide is 8.80 ft long and makes an angle of 25.0° with the horizontal. a 63.0-kg child, initially at the top, slides all the way down to the bottom of the slide. (a) choosing the bottom of the slide as the reference configuration, what is the system's potential energy when the child is at the top and at the bottom of the slide? what is the change in potential energy as the child slides from the top to the bottom of the slide? (include the sign of the value in your answer.)
Answers: 3
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, 22.06.2019 21:30
Aperson touches a large chunk of ice with their hand and remarks, “this is making me cold.” explain what this person is feeling. is the ice transferring “cold” to the person? is there a heat transfer occurring? explain.
Answers: 1
Physics, 23.06.2019 01:00
The smallest particle of an element that retains its identity in a chemical reaction. true or false
Answers: 1
Which option is an example of a good blackbody radiator?
O A. A stove burner that glows red when it...
Mathematics, 23.11.2019 06:31
History, 23.11.2019 06:31
Business, 23.11.2019 06:31
Mathematics, 23.11.2019 06:31
Spanish, 23.11.2019 06:31
History, 23.11.2019 06:31
Mathematics, 23.11.2019 06:31
History, 23.11.2019 06:31
Social Studies, 23.11.2019 06:31