Physics, 09.01.2020 04:31 girlwholikesanime
Asmall ball with a mass of 60.0 g is loaded into a spring gun,
compressingthe spring by 12.0 cm. when thetrigger is pressed the
ball emerges horizontally from the barrel ata height of 1.40 m
above the floor. itthen strikes the floor after traveling a
horizontal distance of2.20 m. use g = 9.80 m/s2.assuming
all the energy stored in the spring is transferred to theball,
determine the spring constant of the spring.
Answers: 3
Physics, 21.06.2019 23:30
Ablock of mass m = 2.5 kg is attached to a spring with spring constant k = 790 n/m. it is initially at rest on an inclined plane that is at an angle of 28 degrees with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is k = 0.14. in the initial position, where the spring is compressed by a distance of a = 0.18 m, the mass is at its lowest position and the spring is compressed the maximum amount. take the initial gravitational energy of the block as zero. b) if the spring pushes the block up the incline, what distance, l, in meters will the block travel before coming to rest? the spring remains attached to both the block and the fixed wall throughout its motion.
Answers: 1
Physics, 22.06.2019 00:30
Two vectors are shown. which statement best compares the vectors? vector x has greater magnitude than vector y. vector y has greater magnitude than vector x. the vectors have the same displacement. the vectors have the same direction.
Answers: 1
Physics, 22.06.2019 01:30
In a thunderstorm, charge builds up on the water droplets or ice crystals in a cloud. thus, the charge can be considered to be distributed uniformly throughout the cloud. for the purposes of this problem, take the cloud to be a sphere of diameter 1.00 kilometer. the point of this problem is to estimate the maximum amount of charge that this cloud can contain, assuming that the charge builds up until the electric field at the surface of the cloud reaches the value at which the surrounding air breaks down. this breakdown means that the air becomes highly ionized, enabling it to conduct the charge from the cloud to the ground or another nearby cloud. the ionized air will then emit light due to the recombination of the electrons and atoms to form excited molecules that radiate light. in addition, the large current will heat up the air, resulting in its rapid expansion. these two phenomena account for the appearance of lightning and the sound of thunder. take the breakdown electric field of air to be eb=3.00Äā106n/c. part a estimate the total charge q on the cloud when the breakdown of the surrounding air is reached. express your answer numerically, to three significant figures, using ÄĀµ0=8.85Äā10Ć¢ā12c2/(nĆ¢ā¹ā¦m2) .
Answers: 2
Asmall ball with a mass of 60.0 g is loaded into a spring gun,
compressingthe spring by 12.0 c...
compressingthe spring by 12.0 c...
Geography, 03.12.2020 19:30
Mathematics, 03.12.2020 19:30
Mathematics, 03.12.2020 19:30
Social Studies, 03.12.2020 19:30
Mathematics, 03.12.2020 19:30
Spanish, 03.12.2020 19:30
Mathematics, 03.12.2020 19:30
Mathematics, 03.12.2020 19:30