Physics, 19.01.2021 14:00 djfluffyman999
There is an explosion on the surface of a lake and two person Seema and John hear it's sound. Seema is 150m away on a boat and. John is 150 m below the surface of water. Who would hear the sound first and why?
Answers: 1
Physics, 22.06.2019 11:30
Balloon a has charge q, and identical mass balloon b has charge 10q. you hang them from threads near each other. choose all of the statements with which you agree. check all that apply. a. a and b exert the same magnitude forces on each other. b. the force that a exerts on b is 10 times the force that b exerts on a. c. the angle between the thread supporting a and the vertical is < the angle between the thread supporting b and the vertical. d. the force that a exerts on b is 1/10 the force that b exerts on a.
Answers: 2
Physics, 22.06.2019 14:00
How much energy must a refrigerator absorb from 225 g of water so that the temperature of the water will drop from 35°c to 5°c
Answers: 3
Physics, 22.06.2019 18:00
Astone is thrown with a speed v0 and returns to earth, as the drawing shows. ignore friction and air resistance, and consider the initial and final locations of the stone. which one of the following correctly describes the change δpe in the gravitational potential energy and the change δke in the kinetic energy of the stone as it moves from its initial to its final location? options a.δpe = 0 j and δke = 0 j b.δpe is positive and δke is negative c.δpe = 0 j and δke is positive d.δpe is negative and δke is positive e.δpe = 0 j and δke is negative
Answers: 3
Physics, 22.06.2019 18:30
Acar starts from rest at a stop sign and reaches a velocity of 25 m/s w in 4 seconds. determine the acceleration of the car. question 3 options: a) 6,25 m/s2 b)6.25 m/s c)100 m/s2 d)100 m/s
Answers: 1
There is an explosion on the surface of a lake and two person Seema and John hear it's sound. Seema...
Mathematics, 25.03.2020 12:38
Mathematics, 25.03.2020 12:38
Geography, 25.03.2020 12:38
Arts, 25.03.2020 12:39
Biology, 25.03.2020 12:39
Chemistry, 25.03.2020 12:39
Mathematics, 25.03.2020 12:40
Physics, 25.03.2020 12:41
History, 25.03.2020 12:41
Mathematics, 25.03.2020 12:42
Geography, 25.03.2020 12:42
Biology, 25.03.2020 12:44