1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
sesenic [268]
3 years ago
13

A baseball player hits a ball at an angle of 52 degrees and at a height of 4.8 ft. if the ball's initial velocity after being hi

t is 150 and if no one catches the ball when will it hit the ground?
Physics
2 answers:
Natalija [7]3 years ago
8 0
The vertical velocity of the ball is: (150\frac{ft}{s})(sin52) = 118.2\frac{ft}{s}. Since gravity acts at -32\frac{ft}{s^2}, this means that the time of flight up to the maximum height (at which vertical velocity is 0) would be:

(0 - 118.2)=(-32)t \\ t = 3.69 s
This maximum height is:
4.8 + 118.2t + 0.5(-32)t^2 \\ = 4.8 + 118.2(3.69) - 16(3.69)^2  \\ = 223.1 ft
Then the time for it to fall down will be:

0.5(-32)(t_{2})^2=-223.1 \\ t_2 = 3.73s
The total time will be 3.69 + 3.73 = 7.42 seconds.
enot [183]3 years ago
7 0

Answer:

C. 7.43

Explanation:

You might be interested in
If an object is not accelerating, it can exist in what 2 other states of motion?
dezoksy [38]

Answer:

Friction is a force that acts in a direction opposite to the motion of the moving object.

Friction will cause a moving object to slow down and finally stop.

7 0
3 years ago
In an incompressible three-dimensional flow field, the velocity components are given by u = ax + byz; υ = cy + dxz. Determine th
Ksivusya [100]

An incompressible flow field F in a 3D cartesian grid with components u,v,w:

F = u + v + w

where u,v,w are functions of x,y,z

Must satisfy:

∇·F = du/dx + dv/dy + dw/dz = 0

We have a field F defined:

F = u+v+w, u = ax+byz, v = cy+dxz

du/dx = a, dv/dy = c

Recall ∇·F = 0:

∇·F = du/dx + dv/dy + dw/dz = 0

a + c + dw/dz = 0

dw/dz = -a-c

Solve for w by separation of variables:

w = ∫(-a-c)dz

w = -az - cz + f(x,y)

f(x,y) is some undetermined function of x and y

The question states that w is not a function of x and y, therefore f(x,y) = 0...

w = -az - cz

8 0
2 years ago
What do we mean by a penetrative pass in the game of football?​
Ivanshal [37]

Answer:

Penetration means forward passes can go through the opposition lines. Once these penetrative passes get through each line, it eliminates the line of players it broke through and leaves the player in possession closer to the opposition goal.

Explanation:

6 0
2 years ago
A cheetah runs with a positive acceleration. What does this tell you about the velocity time graph for the cheetah?
Katarina [22]
B is the correct answer
3 0
3 years ago
1 question 20points<br> How is frequency related to the sound we here
pishuonlain [190]
Frequency is the vibration of noise and the vibration determines the pitch, which we depend on to be a pitch or frequency we can hear. If it's too high or too low our ears can't hear it 
8 0
3 years ago
Other questions:
  • A ball is rolled uphill a distance of 4 meters before it slows, stops, and begins to roll back. The ball rolls downhill 28 meter
    11·1 answer
  • When a 40N force, parallel to and directed up the incline, is applied to a block on a frictionless incline that is 30o above the
    12·2 answers
  • What symbol do we use for the resultant?
    12·1 answer
  • Calculate the acceleration of a bus full speed changes from 6 miles to 12 miles over a period of three seconds
    15·1 answer
  • In a normal respiratory cycle the volume of air that moves into and out of the lungs is about 508 mL. The reserve and residual v
    15·2 answers
  • Https://brainly.com/question/22600061<br><br> Don’t ask too much science
    14·1 answer
  • An electric heater is madde of a wire of resistance 100π and connected to a 240v mains supply. Determine the power rating of the
    15·1 answer
  • The vertical position of the 100-kg block is adjusted by the screw activated wedge. Calculate the moment which must be applied t
    10·1 answer
  • What can you do to prevent an echo and a reverberation in cinema halls and auditorium?<br>​
    14·1 answer
  • Does increase in metabolism accelerates weight loss?.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!