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
nata0808 [166]
3 years ago
8

Which of these statements best proves that electromagnetic forces are weaker than strong nuclear forces? Neutrons do not repel o

r attract each other when they are in the nucleus. Electrons do not move out of an atom when it forms bonds with other atoms. Protons do not move out of the nucleus of atoms although they repel each other. Atoms do not have any charge on them although they consist of charged particles.
Physics
1 answer:
MAVERICK [17]3 years ago
8 0
Protons do not move out of the nucleus of atoms although they repel each other.

Remember that protons are particles with positive charge and they held together in the nucleus of the atom which is a tiny tiny region. As you know, like charges repel each other, which means that the protons exert a repulsion force.
You might be interested in
How does an ice cube cause hot coffee to become cool and through what heat transfer
Trava [24]
An ice cube causes hot coffee to become cool because the amount of coldness contrasts the hot coffee to make it a little cooler
3 0
3 years ago
The floor of a railroad flatcar is loaded with loose crates having a coefficient of static friction of 0.32 with the floor. If t
coldgirl [10]

Answer:

The shortest braking distance is 35.8 m

Explanation:

To solve this problem we must use Newton's second law applied to the boxes, on the vertical axis we have the norm up and the weight vertically down

On the horizontal axis we fear the force of friction (fr) that opposes the movement and acceleration of the train, write the equation for each axis

    Y axis

     N- W = 0

     N = W = mg

  X axis

     -Fr = m a

     -μ N = m a

     -μ mg = ma

     a = μ g

     a  = - 0.32 9.8

     a =  - 3.14 m/s²

We calculate the distance using the kinematics equations

    Vf² = Vo² + 2 a x

     x = (Vf² - Vo²) / 2 a

When the train stops the speed is zero (Vf = 0)

 Vo = 54 km/h (1000m/1km) (1 h/3600s)= 15 m/s

     x = ( 0 - 15²) / 2 (-3.14)

     x=  35.8 m

The shortest braking distance is  35.8 m

7 0
3 years ago
PLEASE HELP!!!! The displacement vectors A and B, when added together, give the resultant vector R, so that R = A + B. Use the d
GuDViN [60]

Answer:

Ax = 0

Ay = 6 m

Bx = 8 cos phi = cos 34 = 6.63 m

By = 8 sin phi = 8 sin (-34) = -4.47 m

Rx = Ax + Bx = 0 + 6.63 = 6.63 m

Ry = Ay + By = 6 - 4.47 = 1.53 m

R = (6.63^2 + 1.53^2)^1/2 = 6.80 m

tan theta = Ry / Rx = 1.53 / 6.8 = ,225

theta = 12.7 deg

7 0
3 years ago
The experimental apparatus shown in the figure above contains a pendulum consisting of a 0.66 kg ball attached to a string of le
lara31 [8.8K]

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.

8 0
3 years ago
Convert to scientific notation:<br> 0.0035
Genrish500 [490]
3.5 x 10^-3 Should be it
3 0
3 years ago
Other questions:
  • Observations show that the dragonflies complete one revolution every 0.017 s during this "spin dry" maneuver. What is their angu
    11·1 answer
  • A uniform log of length L is inclined 30° from the horizontal when supported by a frictionless rock located 0.6L from its left e
    6·1 answer
  • Which of the following would decrease the resistance to the flow of an electric current through a body?
    9·1 answer
  • The magnetic field in the region between the poles of an electromagnet is uniform at any time, but is increasing at the rate of
    13·1 answer
  • If the distance between two masses is tripled, the gravitational force between changes by a factor of:_______
    12·1 answer
  • When used as an energy source in a nuclear power plant, uranium is burned in a similar way as one would burn wood or coal for en
    9·1 answer
  • An electron with a speed of 0.95c is emitted by a supernova, where cc is the speed of light. What is the magnitude of the moment
    9·1 answer
  • When unbalanced forces act on an object, __________________. the object accelerates friction becomes greater than the net force
    14·1 answer
  • ⦁ A certain resistor is required to dissipate 0.25 W, what standard rating should be used?
    9·1 answer
  • Doing science by inquiry always involves:​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!