Physics
Physics, 18.10.2019 11:30, neverfnmind

Acar of mass 1200 kg is traveling at 2 m/s. then it collides with a heavy boulder in the road. during the collision, the car moves forward only 15 cm before stopping. what is the average force exerted by the boulder on the car?
1.6 x 104 n
3.2 x 104 n
5.4 x 104 n
6.5 x 105 n
1.8 x 104 n

answer
Answers: 3

Other questions on the subject: Physics

image
Physics, 22.06.2019 01:10, caguil00
Asteam power plant operates on an ideal reheat rankine cycle between the pressure limits of 15 mpa and 10 kpa. the mass flow rate of steam through the cycle is 12 kg/s. steam enters both stages of the turbine at 500°c. if the moisture content of the steam at the exit of the low-pressure turbine is not to exceed 10 percent, determine (a) the pressure at which reheating takes place, (b) the total rate of heat input in the boiler, and (c) the thermal efficiency of the cycle. also, show the cycle on a t-s diagram with respect to the saturation lines. (2.15 mpa; 45.0 mw; 42.6%)
Answers: 3
image
Physics, 22.06.2019 03:30, cookies1164
What is the momentum of a 2 kg object moving at 15 meters per second
Answers: 1
image
Physics, 22.06.2019 08:00, booitsmrradl3385
While studying chemical reactions and conservation of matter, sarah's class conducted a variety of experiments. sarah and her lab partner found the mass of a wax candle and placed the candle in a flask. the students lit the candle and let it burn to completion. all that was left was wax and charred candle wick. per their teacher's instructions, the students found the mass of the products. their data can be seen in the data table. formulate a hypothesis the students could test to explain why the experiment did not support the law of conservation of matter. a) the students could repeat the experiment using different candles; there might have been a flaw in the candle. b) the experiment should be repeatable. the students should run several trials and then take an average of the after mass in each trial. c) the students should have someone in the class check their measurement skills as they repeat the experiment. they may have made an error using the balance. d) the students should burn the candle in a container that has some type of lid so that any gas that is a product of the reaction can be contained and massed. submit
Answers: 2
image
Physics, 22.06.2019 19:30, jennysantoyo13
Scientist have use computer models to create a series of maps that show how susceptible coastal cities in island countries are to the sea rising at different levels. the map shows that a 1 meter rise would swap cities all along the us eastern seaboard. a 6-meter sea level rise with sub merge a large part of florida. thermal expansion has already raise the oceans 10 to 20 centimeters the most likely cause, directly and indirectly, for such a rise in sea level is
Answers: 2
Do you know the correct answer?
Acar of mass 1200 kg is traveling at 2 m/s. then it collides with a heavy boulder in the road. durin...

Questions in other subjects:

Konu
History, 25.06.2019 09:00