Physics, 14.09.2019 10:30 arianawelsh123l

Aball is thrown horizontally from the top of a upward to be in the y direction) and lands 121.8 m from the base of the building o n ce me the bathrown in the direction and (a) how long (ins) is the ball in the air (b) what must have been the initial horizontal component of the velocity (in m/s)? (indicate the direction with the sign of your answer.) (c) what is the vertical component of the velocity (in m/s) just before the ball hits the ground (indicate the direction with the sign of your answer.) (d) what is the velocity (in m/s) (including both the horizontal and vertical components) of the ball just before it hits the ground magnitude direction counterclockwise from the x-axis

Answers: 1

Show answers

Another question on Physics

Physics, 22.06.2019 09:00

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? question 2 options: the balloons rise at the same rate. both balloons are the same size. the ballons both rise. the cold ballon is larger than the warm balloon. the cold balloon expands and rises. the warm balloon shrinks and sinks. the warm balloon expands and rises. the cold balloon shrinks and sinks.

Answers: 3

Answer

Physics, 22.06.2019 10:00

Because air contracts as it cools, the air pressure inside a freezer is typically lower than on the outside. why do ice cubes inside a freezer tend to shrink over time? a. the ice dissolves oxygen from the air, forming a denser crystalline matrix.b. the ice reacts chemically with carbon dioxide in the air, forming gaseous carbon compounds.c. the ice melts, and then the liquid freezes as ice crystals on the bottom of the freezer.d. the ice sublimes, and then the water vapor deposits as ice crystals on the sides of the freezer.

Answers: 1

Answer

Physics, 22.06.2019 12:10

Consider a one meter long horizontal pipe with a constant 100 cm^2 cross sectional area. water flows rightward into the pipe at x = 0 with flow velocity 02m/sec at every point within the pipe intake area. at x=1, the rightward flow rate is 0.192 m/sec. assume the water is a conserved quantity in the pipe, so there must be a leak (a sink) somewhere in the pipe. 1. compute net volumetric flow of the source if the system to be in equilibrium. 2. now assume the pipe in the problem has no leaks. compute the net volumetric rate of change for the system.

Answers: 3

Answer

Physics, 22.06.2019 17:00

If you wanted to move an electron from the positive to the negative terminal of the battery, how much work w would you need to do on the electron? enter your answer numerically in joules.

Answers: 1

Answer

You know the right answer?

Aball is thrown horizontally from the top of a upward to be in the y direction) and lands 121.8 m fr...

Questions