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
Novay_Z [31]
2 years ago
15

The instant before a batter hits a 0.14-kilogram baseball, the velocity of the ball is 45 meters per second west. The instant af

ter the batter hits the ball, the ball's velocity is 35 meters per second east. The bat and ball are in contact for 1.0 x 10-2 second.
1. find the magnitude and direction of the average acceleration of the baseball while it is in contact with the bat.
2. calculate the magnitude of the average force the Bat exerts on the ball while they are in contact. ​
Physics
1 answer:
NemiM [27]2 years ago
4 0

(1) The magnitude and direction of the average acceleration of the baseball while it is in contact with the bat is 8,000 m/s² east.

(2) The magnitude of the average force the Bat exerts on the ball while they are in contact is 1,120 N.

The given parameters:

  • <em>Mass of the baseball, m = 0.14 kg</em>
  • <em>Initial velocity of the baseball, u = 45 m/s west (negative direction)</em>
  • <em>Final velocity of the baseball, v = 35 m/s east (positive direction)</em>
  • <em>Time of contact, t = 0.01 s</em>

The magnitude and direction of the average acceleration of the baseball while it is in contact with the bat is calculated as follows:

a = \frac{v- u}{t} \\\\a = \frac{35 - (-45)}{0.01} \\\\a = \frac{80}{0.01} \\\\a = 8,000 \ m/s^2

The magnitude of the average force the Bat exerts on the ball while they are in contact is calculated as follows;

F = ma\\\\F = 0.14 \times 8,000\\\\F = 1,120 \ N

Learn more about average force here: brainly.com/question/16200276

You might be interested in
Design a roller coaster.
Zarrin [17]
1. Because the cart on the coaster must get all of its power from this first hill. 
2. It must be smaller because if it was bigger the cart would roll backwards without enough power.
3. an upward climb that is too steep.

I answered the first 3 but try to do the last two by yourself. They are very easy once you figure it out. Try searching the definition of the main points. :)
8 0
3 years ago
Suppose you look out the window of a skyscraper and see someone throw a tomato downward from above your window. your window is a
photoshop1234 [79]
Formula for height 
<span> r(t) = a/2 t² + v₀ t + r₀
</span><span> where 
</span><span> a = acceleration = -32 ft/sec² (gravity) 
</span><span> v₀ = initial velocity 
</span><span> r₀ = initial height 
</span><span> r(t) = -16t² + v₀ t + r₀
</span> <span>Tomato passes window (height = 450 ft) after 2 seconds: 
</span><span> r(2) = 450
</span><span> -16(4) + v₀ (2) + r₀ = 450 
</span><span> r₀ = 450 + 64 - 2v₀ 
</span><span> r₀ = 514 - 2v₀ 
</span><span> Tomato hits the ground (height = 0 ft) after 5 seconds: 
</span><span> r(5) = 0 
</span><span> -16(25) + v₀ (5) + r₀ = 0
</span> r<span>₀ = 16(25) - 5v₀ 
</span><span> r₀ = 400 - 5v₀ 
</span><span> 
 r₀ = 514 - 2v₀ and r₀ = 400 - 5v₀
</span> <span>514 - 2v₀ = 400 - 5v₀
</span><span> 5v₀ - 2v₀ = 400 - 514
</span> <span>3v₀ = −114 
</span><span> v₀ = −38 
</span><span> Initial velocity = −38 ft/sec (so tomato was thrown down) 
</span><span> (initial height = 590 ft) </span>
4 0
4 years ago
You are driving in a car for 30 minutes, with the windows down and the radio at a high volume. You turn the car off and leave th
matrenka [14]

Answer:

sensory adaption

Explanation:

Sensory adaption is the phenomenon where the intensity of a stimulus experienced by an organism decreases after a certain amount of exposure to the stimulus. This happens in order for us to pay attention to other stimulus.

When you are driving with the windows down and listening to music you are subjected to a lot of stimuli. Here, most of our attention needs to be on driving. So, our brain drowns all the other unneccessary stimuli like the music.

When you enter the car again where the other stimuli which were present while driving are absent, all your attention is diverted to the music. So, your're ears hurt.

6 0
4 years ago
Light is a ________ wave.<br> A. surface <br> B. transverse <br> C. longitudinal <br> D. mechanical
Strike441 [17]
 light is a transverse wave
3 0
4 years ago
Why a flying areoplane has more kinectic energy than a flying insect
nikitadnepr [17]

Answer: Because the angle of attack is so high, a lot of momentum is transferred downward into the flow. These two features create a large amount of lift force as well as some additional drag.

Brainlest would be much appreciated.

6 0
3 years ago
Other questions:
  • A placekicker must kick a football from a point 36.0 m (about 40 yards) from the goal. Half the crowd hopes the ball will clear
    9·1 answer
  • Even though uranus is bigger than earth why does earth have more gravity than uranus
    8·1 answer
  • What is the derivative of x^2 - x + 3 at the point x = 5?​
    12·1 answer
  • If an upstairs room is warmer than downstairs, is that a example of convection, conduction, or radiation?
    14·1 answer
  • An older camera has a lens with a focal length of 60mm and uses 34-mm-wide film to record its images. Using this camera, a photo
    11·1 answer
  • A spherical object has a density rho. If it is compressed under high pressure to one third of its original diameter, its density
    8·1 answer
  • In a compound, chemical energy is contained in the ______________________
    13·1 answer
  • A race car makes one lap around a track of radius 50 m in 9.0 s. What is the average velocity? *
    5·1 answer
  • Why are multiple images seen when two plane mirrors are placed at an angle​
    5·1 answer
  • A particular eco solar system has five planets in total a b c d and e the table lists the orbital periods of these planets in da
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!