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
ANTONII [103]
3 years ago
12

A baseball has a mass of 145 g. A bat exerts a force of 18,400 N on the ball. What is the acceleration of the ball?

Physics
2 answers:
romanna [79]3 years ago
8 0

Answer:

C. 1.27x10^5m/s^2

Explanation:

The information we have is:

mass: m=145g

we must convert this amount to kilograms, because 1 kilogram equals 1000 grams, we divide the grams by 1000 to have the amount in kilograms

mass: m=145g/1000=0.145kg

also we know the force: F=18,400N

To know the acceleration of the object we make use of Newton's second law:

F=ma

and we clear for the acceleration a

a=\frac{F}{m}

and we substitute the known values:

a=\frac{18,400N}{0.145kg} =126,896.6m/s^2

rounding and expressing this value for acceleration in a compact way:

a=1.27x10^5m/s ^2 which is option C

amid [387]3 years ago
3 0

The correct formula to use for the situation given above is: F = MA, where F is the applied force, M is the mass of the object and A is the acceleration.

From the details given in the question, we are told that:

F = 18, 400N

M = 145 g = 145 / 1000 = 0.145 kg

A = ?

From the equation F = MA

A = F / M

A = 18,400 / 0.145 = 126,896.55 = 1.27 *10^5.

Therefore, the correct option is C.

You might be interested in
How does inertia affect the motion of an object?
Furkat [3]

<u>Inertia affects the motion of an object as follows:</u>

When an object is in motion, it will continue to be in the same state unless otherwise some outside force is being applied to it. Thus, inertia affects the motion of an object. It restricts some other force being acted upon the object.

But mass of an object is directly proportional to inertia. So when the inertia is more on an object, it means that the object has more mass. For example, if there are two similar bricks, one that is made up of mortar and the other one is made of Styrofoam.

To identify which brick is made of Styrofoam without lifting the bricks, push both the bricks with equal force, the one that has less resistance tends to move faster. This means that it has less inertia and hence less mass.

4 0
3 years ago
How are kyanite crystals formed
aev [14]
It occurs as detrital grains in sedimentary rocks. It forms under extreme pressure.
3 0
3 years ago
Homework help plz it would help a lot ​
blagie [28]

#82

here we know that

acceleration = 2 m/s/s

time = 5 s

initial speed = 4 m/s

now we can use kinematics to find the final speed

v_f = v_i + at

v_f = 4 + 2(5)

v_f = 14 m/s

So correct answer will be option D)

#83

here we know that

acceleration = 3 m/s/s

time = 4 s

initial speed = 5 m/s

now we can use kinematics to find the final speed

v_f = v_i + at

v_f = 5 + 3(4)

v_f = 17 m/s

So correct answer will be option C)

#84

here we know that

acceleration = 7 m/s/s

time = 3 s

initial speed = 8 m/s

now we can use kinematics to find the final speed

v_f = v_i + at

v_f = 8 + 7(3)

v_f = 29 m/s

So correct answer will be option C)

6 0
3 years ago
A 46 g domino slides down a 30 degrees incline at a constant speed. What is the coefficient of friction?
blondinia [14]

Answer:

40

Explanation:

30

6 0
3 years ago
A ray of light incident in air strikes a rectangular glass block of refractive index 1.5 at angle of incidence of 45.
Gwar [14]

Refraction is said to occur when there is a change in the speed of light.

<h3>What is the angle of refraction?</h3>

We know that refraction is said to occur when there is a change in the speed of light as it travels form one medium to another.

Given that the refractive index of the rectangular glass block is  1.5. The angle of refraction can be obtained by the use of the Snell's law;

n = sin i /sinr

n = refractive index

sini = angle of incidence

sin r = angle of refraction

sinr = sini/n

sinr = sin 45/1.5

= 0.471

r = 28 degrees

b) Now;

sinr =sin  45/1.2

sinr = 0.589

r = 36 degrees

For the glass

sinr = sin 36/1.5

sin r = 0.392

r = 23 degrees

Learn more about angle of refraction:brainly.com/question/2660868

#SPJ1

4 0
2 years ago
Other questions:
  • Two rocks are tied to massless strings and whirled in nearly horizontal circles so that the time to travel around the circle onc
    9·1 answer
  • An object moves in uniform circular motion at 25 m/s and takes 1.0 second to go a quarter circle. Calculate the centripetal acce
    13·1 answer
  • Identify the conditions for an inelastic collision in a closed system. Check all that apply.
    9·2 answers
  • From the top of a tall building, you throw one ball straight up with speed v0 and one ball straight down with speed v0. (a) Whic
    8·1 answer
  • The sympathetic nervous system ____________digestion and _____________blood pressure. (2 points)
    6·1 answer
  • Why is cancer so horrible
    12·2 answers
  • What is the resultant momentum of an object<br><br> psss: anyone wants to join pad let
    14·2 answers
  • Khái niệm lực điện,đặc điểm về tương tác điện của lực điện
    9·1 answer
  • A person is trying to ride a bike all the way round the inside of a pipe for a stunt in a film. The filmmaker wants to know what
    8·1 answer
  • As a train accelerates away from a station, it reaches a speed of 4.9 m/s in 5.4 s. if the train's acceleration remains constant
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!