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
Paladinen [302]
3 years ago
15

The experimental apparatus shown in the figure above contains a pendulum consisting of a 0.66 kg ball attached to a string of le

ngth 0,60 m. The pendulum is released from rest at an angle of
60 degrees and collides with a ball of mass 0.22 kg initially at rest at the edge of a table. The 0.22 kg ball hits the floor a distance of 1.4 m from the edge of the table.
a. Calculate the speed of the 0.66 kg ball just before the collision
b. Calculate the speed of the 0.22 kg ball immediately after the collision
c. Calculate the speed of the 0.66 kg ball immediately after the collision
d. Indicate the direction of motion of the 0.66 kg ball immediately after the collision
To the left
to the right
e. Calculate the height to which the 0.66 kg ball rises after the collision
f. Based on your data, is the collision elastic?
Yes
No
Justify your answer.

Physics
1 answer:
lara31 [8.8K]3 years ago
8 0

The problem is solved and the questions are answered below.

Explanation:

a. To calculate the speed of the 0.66 kg ball just before the collision

V₀ + K₀ = V₁ + K₁

= mgh₀ = 1/2 mv₁²

where, h= r - r cosθ

V = \sqrt{2gh}

 V = 2.42 m/s

b. Calculate the speed of the 0.22 kg ball immediately after the collision

y = y₀ + Vy₀t - 1/2 gt²

0 = 1.2 - 1/2 gt²

t = 0.495 s

x = x₀ + Vx₀t

1.4 = 0 + vx₀ (0.495)

Vx₀ = 2.83 m/s

C. To Calculate the speed of the 0.66 kg ball immediately after the collision

m₁ v₁ = m₁ v₃ + m₂ v₄

(0.66)(2.42) = (0.66) v₃ + (0.22)(2.83)

V₃ = 1.48 m/s

D. To Indicate the direction of motion of the 0.66 kg ball immediately after the collision is to the right.

E. To Calculate the height to which the 0.66 kg ball rises after the collision

V₀ + k₀ = V₁ + k₁

1/2 mv₀² = mgh₁

h₁ = v₀²/2 g

  = 0.112 m

F. Based on your data, No the collision is not elastic.

Δk = 1/2 m₁v₃² =1/2 m₂v₄² - 1/2 m₁v₁²

     = 1/2 (0.66)(1.48)² + 1/2 (0.22)(2.83)² - 1/2 (0.66)(2.42)²

    = - 0.329 J

Hence, kinetic energy is not conserved.

You might be interested in
4. There is a horizontal wire with conventional current of 850 A moving to the right. (a) Draw how the magnetic field generated
nata0808 [166]

Answer:

Explanation:

a) Please see the attached image below.

b) The magnitude of the magnetic field generated by the current in a wire is given by:

B=\frac{\mu_o I}{2\pi r}

μo: magnetic permeability of vacuum = 4π*10^-7  T/A

I: current = 850A

r: distance where B is calculated = 2.00cm = 0.02m

B=\frac{(4\pi*10^{-7}T/A)(250A)}{2\pi(0.02m)}=8.5*10^{-3}T=8.5m T

As you can see in the image, the direction of B points inside the sheet of paper.

c) The magnetic force is given by:

\vec{F_B}=q\vec{v}\ X\ \vec{B}

You can assume that the direction of B is in -z direction, that is, -k. Thus, the direction of the proton is in +x direction, or +i. The direction of the magnetic force over the proton is given by the following cross product:

i X (-k) = - (i X k) = -(-j) = j

Then, the direction of FB is in +y direction, that is, upward respect to the wire.

The magnitude of FB will be:

|\vec{F_B}|=vBsin\theta=(8.5m T)v

(it is only necessary to replace by the value of v)

6 0
3 years ago
Can some help me out on some science ?
Dennis_Churaev [7]
Yea but whats the question
3 0
3 years ago
Read 2 more answers
Harnessing tidal power would involve:_______.a) letting in-flowing and/or out-flowing tide flow through turbines in a dam.b) hug
Vladimir79 [104]

Answer:

a) letting in-flowing and/or out-flowing tide flow through turbines in a dam.

Explanation:

Tidal power makes use of the energy from the tidal force and wave action in order to generate electricity. it is a predictable source of energy.

Tidal Barrages

The system allows tides to enter, seawater flows via the dam and is trapped into the basin when the tides subside and system’s gates close.

When the tides start to move out, the gates in the dam are opened up this consist of turbines and water begins to flow out, hitting the turbines this eventually turn to produce energy.

Power is produced when the tidal range, which is the difference between low and high tide, has to be more than 5 meters.

6 0
3 years ago
A series circuit contains a 100.0-Ω resistor, a 0.450-H inductor, a 0.360-µF capacitor, and a time-varying source of emf providi
eduard

Answer:

A) The resonance angular frequency in an L-R-C circuit is

\omega_0 = \frac{1}{\sqrt{LC}} = \frac{1}{\sqrt{0.45\times0.36\times 10^{-6}}}\\\omega_0 = 2.48\times10^3 rad/s

B) The current can be found by calculating the impedance of the system.

Z = \sqrt{R^2 + (X_L - X_C)^2} = R

Since X_L = X_C at resonance.

So, I = V/Z = V/R = 30 / 100 = 0.3A

5 0
3 years ago
Engineers who design battery-operated devices such as cell phones and MP3 players try to make them as efficient as possible. An
Svetradugi [14.3K]


efficiency= [useful energy transferred ÷ total energy supply]×100%

So, [5500÷10000]×100%=0.55×100

                                        =55%

5 0
3 years ago
Other questions:
  • WHICH OF THE FOLLOWING IS A HAZARD OF GLOBALIZATION???
    6·2 answers
  • Gravitational force is a(n)? A) attractive force B) repulsive force C) both an attractive and repulsive force D) neither an attr
    10·1 answer
  • A large cube has a mass of 25kg. It is being acclerated
    7·1 answer
  • A wheel rotates without friction about a stationary horizontal axis at the center of the wheel. A constant tangential force equa
    13·1 answer
  • The speed of sound in liquids, gases, and solids is as follows, from fastest to slowest a Gas, liquid, solid b- Liquid, solid, g
    9·1 answer
  • The sun’s surface has a grainy texture produced by numerous bright markings called _____.
    12·2 answers
  • A que profundidad esta nadando una persona dentro de una alberca si la presión absoluta sobre ésta es de 156kPa?
    11·1 answer
  • Which is the weakest of the four fundamental forces?
    6·2 answers
  • Describe how body composition is measured?​
    6·1 answer
  • Find the resultant force And angle
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!