Physics, 07.09.2021 23:50 Pumpkinputters

From the window of a building, a ball is tossed from a height y, above the ground with an initial velocity of 7.80 mts and angle of 25.0" below the horizontal, It strikes the ground 5.60 s later (a) If the base of the building is taken to be the origin of the coordinates, with upward the positive y direction, what are the initial coordinates of the ball (Use the following as necessary. Yo Assume
St units. Do not substitute numerical values; use variables only)
X-
Y-
(b) With the positive x direction chosen to be out the window, find the x and y-components of the initial velocity
m's
m/s
(c) Find the equations for the x- and y-components of the position as functions of time. (Use the following as necessary: Y and . Assume Stunits.)
X
m
m
(d) How far horizontally from the base of the build does the ball strike the ground?
() Find the height from which the ball was thrown
m
() How long does it take the ball to reach a point 10.0 m below the level of launching?
.

Answers: 3

Show answers

Another question on Physics

Physics, 22.06.2019 15:30

Can you match these to the correct definition

Answers: 3

Answer

Physics, 22.06.2019 17:00

Adiver named jacques observes a bubble of air rising from the bottom of a lake (where the absolute pressure is 3.50 atm) to the surface (where the pressure is 1.00 atm). the temperature at the bottom is 4.00 ∘c, and the temperature at the surface is 23.0 ∘c.what is the ratio of the volume of the bubble as it reaches the surface (vs) to its volume at the bottom (vb)? if jaques were to hold his breath the air in his lungs would be kept at a constant temperature. would it be safe for jacques to hold his breath while ascending from the bottom of the lake to the surface?

Answers: 1

Answer

Physics, 22.06.2019 20:30

Suppose a force of 60 n is required to stretch and hold a spring 0.1 m from its equilibrium position. a. assuming the spring obeys hooke's law, find the spring constant k. b. how much work is required to compress the spring 0.5 m from its equilibrium position? c. how much work is required to stretch the spring 0.6 m from its equilibrium position? d. how much additional work is required to stretch the spring 0.1 m if it has already been stretched 0.1 m from its equilibrium? a. kequals 600

Answers: 2

Answer

Physics, 22.06.2019 20:50

In a game of pool, ball a is moving with a velocity v0 of magnitude v0 = 15 ft/s when it strikes balls b and c, which are at rest and aligned as shown. knowing that after the collision the three balls move in the directions indicated and assuming frictionless surfaces and perfectly elastic impact (that is, conservation of energy), determine the magnitudes of the velocities va, vb, and vc.

Answers: 3

Answer

You know the right answer?

From the window of a building, a ball is tossed from a height y, above the ground with an initial ve...

Questions