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
crimeas [40]
3 years ago
15

A batter hits a foul ball. The 0.14-kg baseball that was approaching him at 40 m/s leaves the bat at 30 m/s in a direction perpe

ndicular to the line between the batter and the pitcher. What is the magnitude of the impulse delivered to the baseball
Physics
2 answers:
zmey [24]3 years ago
7 0

Answer:

The magnitude of the impulse delivered to the baseball is 9.8 N s

Explanation:

Given data:

m = mass = 0.14 kg

vi = initial velocity = 40 m/s

vf = final velocity = -30 m/s

The magnitude of the impulse is equal to:

J=m(v_{i} -v_{f} )=0.14*(40-(-30))=9.8Ns

swat323 years ago
5 0

Answer:

<em>7 kgm/s or 7 Ns</em>

Explanation:

Since the velocity are perpendicular to each other, the impulses will also be perpendicular.

From newton's second law of motion,

Impulse = mass×velocity

I = mv............. Equation 1

For the horizontal,

I₁ = mv₁......... Equation 2

Given: m = 0.14 kg, v₁ = 40 m/s

Substitute into equation 2

I₁ = 40(0.14)

I₁ = 5.6 kgm/s

Also for the vertical,

I₂ = mv₂.............. Equation 3

Given: m= 0.14 kg, v₂ = 30 m/s

Substitute into equation 3

I₂ = 0.14(30)

I₂ = 4.2 kgm/s

Using Pythagoras to get the resultant impulse

I = √(I₁²+I₂²)................ Equation 4

Substitute the value of I₁ and I₂ into equation 4

I = √(5.6²+4.2²)

I = √(31.36+17.64)

I = √49

<em>I = 7 kgm/s or 7 Ns</em>

You might be interested in
Mass is not volume.<br> True<br> False
raketka [301]
The answer is false
6 0
2 years ago
Two mirrors are at right angles to one another. A light ray is incident on the first at an angle of 30° with respect to the norm
marta [7]

Answer:

reflected angle - secod mirror = 60°

Explanation:

I attached an image with the solution to this problem below.

In the solution the reflection law, incident angle = reflected angle, is used. Furthermore some trigonometric relation is used.

You can notice in the image that the angle of reflection in the second mirror is 60°

7 0
3 years ago
Match these items and the phrases with which they are associated.
amid [387]
Amount of matter in object is mass.density is mass/volume.h2o is water.drew first picture of atom is Neil's Bohr.l* w* h is volume.basic unit of matter is atom.mixture is concrete.n=1 is inner shell.upward force of a liquid on an object is buoyancy.
4 0
3 years ago
How much positive electric charge is in 10 moles of carbon? NA=6.022×1023mol−1, e=1.60×10−19C.
levacccp [35]

Answer:

4.75 x 10^-25 kg

Explanation:

5 0
3 years ago
What radiation do remote controls use?
aleksandr82 [10.1K]

Answer:infrared radiation

Explanation:

Most remote control uses infrared radiation

5 0
3 years ago
Other questions:
  • You are using a rope to lift a 14.5 kg crate of fruit. Initially you are lifting the crate at 0.500 m/s. You then increase the t
    5·1 answer
  • Contrast the nucleus and electron in a cloud
    8·1 answer
  • A 1.10-kg wrench is acting on a nut trying to turn it. The length of the wrench lies directly to the east of the nut. A force 15
    13·1 answer
  • A force of 99 N causes a box to accelerate at a rate of 11 m/s2. What is the mass of the box? (Ignore frictional effects.) 1,100
    8·2 answers
  • The first active volcano observed outside the earth was discovered in 1979 on io, one of the moons of jupiter. suppose a volcano
    6·1 answer
  • Describe how a change in resistance would affect the current in a circuit.
    5·1 answer
  • 1. The saw cut that is made at 450-75° angles to the annual rings is called:
    12·1 answer
  • Y’all wann trade in rob.lox I have a violet Valkyrie
    10·2 answers
  • For nitrogen to be a liquid, its temperature must be within 12.78 °f of –333.22 °f. the equation |x 333.22 | = 12.78 can be used
    12·2 answers
  • suppose you need to design a parachute system to help a remote camera land safely at the bottom of a cave. the camera will drop
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!