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
mylen [45]
3 years ago
15

22. Why did conflict erupt between President Johnson and Congress after Lincoln’s assassination?

Physics
1 answer:
KiRa [710]3 years ago
3 0
The second option. (take with a pinch of salt)
You might be interested in
A raging bull of mass 700kg runs at 10 m/s. How much kinetic energy does it have?
Illusion [34]

Answer: 35000 J or 35kJ

Explanation:

Use equation for kinetic energy : Ek=mV²/2

m=700 kg

V=10m/s

-------------------

Ek= 700kg*100m²7s²/2

Ek=35000 J=35kJ

6 0
3 years ago
A bar-magnet with magnetic moment 2.5 Am^2 is placed in a homogeneous magnetic field (of 0.1 T that is directed along the z-axis
Angelina_Jolie [31]

Answer:

1)

Force on bar magnet  = 0

Torque on bar magnet = 0

2)

Force on bar magnet  = 0

Torque on bar magnet = 0.177 Nm

3)

Force on bar magnet  = 0

Torque on bar magnet = 0.25 Nm

Explanation:

Part 1)

net force on bar magnet in uniform magnetic field is always zero

Torque on bar magnet is given as

\tau = MBsin\theta

when bar magnet is inclined along z axis along magnetic field

then we will have

\tau = MBsin0 = 0

Part 2)

net force on bar magnet in uniform magnetic field is always zero

Torque on bar magnet is given as

\tau = MBsin\theta

when bar magnet is pointing 45 degree with z axis then we will have

\tau = MBsin45

\tau = (2.5)(0.1)sin45

\tau = 0.177 Nm

Part 3)

net force on bar magnet in uniform magnetic field is always zero

Torque on bar magnet is given as

\tau = MBsin\theta

when bar magnet is pointing 90 degree with z axis then we will have

\tau = MBsin90

\tau = (2.5)(0.1)sin90

\tau = 0.25 Nm

8 0
4 years ago
A group of environmental scientists wants to study the impact of population growth on the environment. Which discipline will con
Julli [10]

Answer:

A. Social Science

Explanation:

3 0
3 years ago
A luggage handler pulls a 20.0 kgkg suitcase up a ramp inclined at 32.0 ∘∘ above the horizontal by a force F⃗ F→ of magnitude 16
Nuetrik [128]

Answer:

a)    W₁ = 8242.2 J, b)      W₁ = 8242.2 J , c)  W₃ = 0 , d)  W₄ = -189.51 J  ,

f) v = 27.24 m / s

Explanation:

a) Work is defined by

         W = F. d ​​= F d sin θ

where angle is between force and displacement

n this case the suitcase is going up and the outside F is parallel to the plane, so the angle is zero and the cosine is 1

         W = F d

           

Let's calculate

         W = 169 3.8

          W₁ = 8242.2 J

b) the gravitational force is vertical so it has an angle with respect to the horizontal parallel to the plane of

           θ’= 90 - θ

           θ'= 90-32 = 58º

           

           W = m g d thing θ ’

            W = 20 9.8 3.8 thing (180 + tea ’) =

            W = 744.8 cos (180 + 32)

            W₂ = -631.6 J

c) The normal work, as it has 90º with respect to the displacement, its work is zero

         W₃ = 0

d) the work of the friction force

           

Let's write Newton's second law the Y axis

         N- Wy = 0

         Cos 32 = Wy / W

          N = W cos 32

The expression for friction force is

         fr = μ N

         fr = μ mg cos 32

         fr = 0.300 20 9.8 cos (32)

         fr = 49.87 N

The work of the friction force

         W = fr d cos 180

         W₄ = -49.87 3.8

          W₄ = -189.51 J

 

E) The total work

         W = W₁ + W₂ + W₃ + W₄

         W = 8242.2- 631.6 + 0 -189.51

          W_total = 7421.09 J

F) Usmeosel theorem of work and energy

          W = ΔK

          W = ΔK = ½ m v² - 0

          v =√ 2W / m

          v = √ (2 7421.09 / 20)

          v = 27.24 m / s

5 0
3 years ago
Calculate the magnitude of the total angular momentum of the woman–disk system. (assume that you can treat the woman as a point.
Mrac [35]
 <span>I of disk = 1/2MR² = (0.5)(230)(4.0)² = 1840 kgm² 
I of disk-woman system = I = 1/2MR² + md² = (50)(4.0)² = 1840 + 800 = 2640 kgm² 
L = Iw = (2640)(0.80)(2π) = 13,270 ≈ = 13,000 kgm²/s ANS

idk I'm just trying</span>
8 0
3 years ago
Other questions:
  • In 2013, renewable energy provided 10% of the total energy used in the united states, and wind energy accounted for 17.4% of the
    10·1 answer
  • 1.Q: True or False? The menstrual<br> period lasts about a day each<br> month.<br><br> Explain
    11·2 answers
  • What causes a regular reflection
    15·1 answer
  • Which best describes nuclear fission?
    13·2 answers
  • Help!
    12·1 answer
  • A clarinetist, setting out for a performance, grabs his 3.230 kg3.230 kg clarinet case (including the clarinet) from the top of
    8·1 answer
  • Amplitude is a measure of a waves
    7·1 answer
  • A smoke detector is an electronic fire-protection device that automatically senses the presence of smoke as a key indicator of f
    12·1 answer
  • How much potassium nitrate, KNO3, would completely dissolve in 100g of water at 40℃?
    12·1 answer
  • Please answer help me
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!