answer.
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
Allisa [31]
1 year ago
15

A 1.47-newton baseball is dropped from a height of 10.0 meters and falls through the air to the ground. The kinetic energy of th

e ball is 12.0 joules the instant before the ball strikes the ground. The maximum amount of mechanical energy converted to internal energy during the fall is_________.
Physics
2 answers:
vagabundo [1.1K]1 year ago
8 0

Answer:

The maximum amount of mechanical energy converted to internal energy during the fall is 26.7 joules

Explanation:

Potential Energy (PE) = weight of baseball × height = 1.47N × 10m = 14.7Nm = 14.7 joules

Kinetic Energy (KE) = 12 joules

Maximum amount of mechanical energy converted to internal energy during the fall = PE + KE = 14.7 joules + 12 joules = 26.7 joules

Vedmedyk [2.9K]1 year ago
7 0

Answer:

ΔE<em>internal </em>= - 2.7 J

Explanation:

Given

W = m*g = 1.47 N

h<em>initial</em> = 10.0 m

K<em>final</em> = 12.0 J

We can apply

ΔE = ΔE<em>internal</em>

then

ΔE = (K<em>final</em> + U<em>final</em>) - (K<em>initial</em> + U<em>initial</em>)

⇒   ΔE = (K<em>final</em> + 0 J) - (0 J + U<em>initial</em>) = K<em>final </em>- U<em>initial</em>

⇒   ΔE = K<em>final</em> - (W*h<em>final</em>) = 12 J  - (1.47 N*10.0 m)

⇒   ΔE = 12 J - 14.7 J = - 2.7 J

then

ΔE<em>internal </em>= - 2.7 J

You might be interested in
A(n) ________ has charge but negligible mass, whereas a(n) ________ has mass but no charge.
vfiekz [6]
Electron;Neutron is the correct answer.
6 0
2 years ago
Read 2 more answers
Brad is working on a speed problem in physics class. The problem tells him that a girl runs from her house to the park 0.05 km a
Dmitriy789 [7]
It is corecct becasue it 10 s more added from 0.05
7 0
2 years ago
Read 2 more answers
A positively-charged particle is released near the positive plate of a parallel plate capacitor. a. Describe its path after it i
il63 [147K]

Answer:

a. The electric field lines are linear and perpendicular to the plates inside a parallel-plate capacitor, and always from positive plate to the negative plate. If a positive charge is released near the positive plate, then<em> it will follow a linear path towards the negative plate under the influence of electrostatic force, F = Eq</em>, where q is the charge of the particle. The electric field inside a parallel plate capacitor is constant and equal to

This can be calculated by Gauss' Law.

A positive charge always follow the electric field lines when released. Another approach is that the positive plate repels the positive charge and negative plate attracts the positive charge. Therefore, the positive charge follows a path towards the negative charge.

b. The particle moves from the higher potential to the lower potential. <em>The direction of motion is the same as the direction of the force that moves the particle, so the work done on the particle by that force is positive.</em>

8 0
2 years ago
Which statements describe the applications of nuclear medicine scans? Check all that apply.
coldgirl [10]

Answer:

- asses disease progression and tissue function

- utilize a biologically active molecule

- utilize a radionuclide tracer

Explanation:

4 0
2 years ago
Read 2 more answers
A solid cylinder of mass 12.0 kg and radius 0.250 m is free to rotate without friction around its central axis. If you do 75.0 J
faltersainse [42]

Answer:

20 rad/s

Explanation:

mass, m = 12 kg

radius, r = 0.250 m

Moment of inertia of cylinder, I = 1/2 mr²

I = 0.5 x 12 x 0.250 x 0.250 = 0.375 kgm^2

Work done = Change in kinetic energy

Initial K = 0

Final K = 1/2 Iω²

W = 1/2 Iω²

ω² = 2W/ I = 2 x 75 / (0.375)

ω = 20 rad/s

Thus, the final angular velocity is 20 rad/s .

8 0
1 year ago
Other questions:
  • If you know that the period of a pendulum is 1.87 seconds, what is the length of that pendulum? (Assume that we are on Earth and
    6·2 answers
  • If you apply 100.0 N of force to lift an object with a single, fixed pulley, then what is the resistive force?
    8·1 answer
  • During action potential, the electrical charge inside the neuron is __________ the electrical charge outside the neuron.
    9·2 answers
  • A 4-lb ball b is traveling around in a circle of radius r1 = 3 ft with a speed (vb)1 = 6 ft&gt;s. if the attached cord is pulled
    12·1 answer
  • A uniform crate with a massof 30 kg must be moved up along the 15° incline without tipping. Knowing that force P is horizontal,
    11·1 answer
  • A simple harmonic wave of wavelength 18.7 cm and amplitude 2.34 cm is propagating along a string in the negative x-direction at
    7·1 answer
  • A battery powers a circuit for a small noisy fan. The fan’s motor gets warm as it turns. What energy transformations are taking
    6·2 answers
  • A car travels around an oval racetrack at constant speed. The car is accelerating:________.
    11·1 answer
  • Describe each class of lever and explain to characteristics of each
    5·2 answers
  • Two equal length of wire made of the same material but of different diameters have an effective resistance of 0.8 ohm when they
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!