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
Inessa05 [86]
2 years ago
10

A new business should be based on an entrepreneur's individual interests because the entrepreneur must have sufficient confidenc

e to succeed. be willing to take personal responsibility. have enough determination to work alone. dedicate as many hours as needed to the work.
Physics
2 answers:
hammer [34]2 years ago
8 0

Answer: D) dedicate as many hours as needed to the work.

Explanation:

edge 2020

Elza [17]2 years ago
7 0

Answer:

D

Explanation:

You might be interested in
An elemental trip through europe
Mariana [72]
About what  elemental trip through europe
8 0
3 years ago
Which has the most kinetic energy?
lara31 [8.8K]

Answer:

I think A golf ball shot out of a small cannon

Explanation:

3 0
2 years ago
The chart shows data for a moving object.
Ipatiy [6.2K]

Answer:

number 2

Explanation:

8 0
3 years ago
Which is not one of the forms that energy can take?
sladkih [1.3K]
Question 1: Newtonian. It refers to work of Newton. Light, electrical and chemical energies are different forms of energy. 
Question 2: Nuclear power plants. Heat , Sunlight and energy in atoms are not nuclear energies. 
Question 3: Batteries. the other two are examples of mechanical energy. But batteries are examples for chemical energy.
4 0
3 years ago
Read 2 more answers
A particle has a charge of q = +4.9 μC and is located at the origin. As the drawing shows, an electric field of Ex = +242 N/C ex
irina1246 [14]

a)

F_{E_x}=1.19\cdot 10^{-3}N (+x axis)

F_{B_x}=0

F_{B_y}=0

b)

F_{E_x}=1.19\cdot 10^{-3} N (+x axis)

F_{B_x}=0

F_{B_y}=3.21\cdot 10^{-3}N (+z axis)

c)

F_{E_x}=1.19\cdot 10^{-3} N (+x axis)

F_{B_x}=3.21\cdot 10^{-3} N (+y axis)

F_{B_y}=3.21\cdot 10^{-3}N (-x axis)

Explanation:

a)

The electric force exerted on a charged particle is given by

F=qE

where

q is the charge

E is the electric field

For a positive charge, the direction of the force is the same as the electric field.

In this problem:

q=+4.9\mu C=+4.9\cdot 10^{-6}C is the charge

E_x=+242 N/C is the electric field, along the x-direction

So the electric force (along the x-direction) is:

F_{E_x}=(4.9\cdot 10^{-6})(242)=1.19\cdot 10^{-3} N

towards positive x-direction.

The magnetic force instead is given by

F=qvB sin \theta

where

q is the charge

v is the velocity of the charge

B is the magnetic field

\theta is the angle between the directions of v and B

Here the charge is stationary: this means v=0, therefore the magnetic force due to each component of the magnetic field is zero.

b)

In this case, the particle is moving along the +x axis.

The magnitude of the electric force does not depend on the speed: therefore, the electric force on the particle here is the same as in part a,

F_{E_x}=1.19\cdot 10^{-3} N (towards positive x-direction)

Concerning the magnetic force, we have to analyze the two different fields:

- B_x: this field is parallel to the velocity of the particle, which is moving along the +x axis. Therefore, \theta=0^{\circ}, so the force due to this field is zero.

- B_y: this field is perpendicular to the velocity of the particle, which is moving along the +x axis. Therefore, \theta=90^{\circ}. Therefore, \theta=90^{\circ}, so the force due to this field is:

F_{B_y}=qvB_y

where:

q=+4.9\cdot 10^{-6}C is the charge

v=345 m/s is the velocity

B_y = +1.9 T is the magnetic field

Substituting,

F_{B_y}=(4.9\cdot 10^{-6})(345)(1.9)=3.21\cdot 10^{-3} N

And the direction of this force can be found using the right-hand rule:

- Index finger: direction of the velocity (+x axis)

- Middle finger: direction of the magnetic field (+y axis)

- Thumb: direction of the force (+z axis)

c)

As in part b), the electric force has not change, since it does not depend on the veocity of the particle:

F_{E_x}=1.19\cdot 10^{-3}N (+x axis)

For the field B_x, the velocity (+z axis) is now perpendicular to the magnetic field (+x axis), so the force is

F_{B_x}=qvB_x

And by substituting,

F_{B_x}=(4.9\cdot 10^{-6})(345)(1.9)=3.21\cdot 10^{-3} N

And by using the right-hand rule:

- Index finger: velocity (+z axis)

- Middle finger: magnetic field (+x axis)

- Thumb: force (+y axis)

For the field B_y, the velocity (+z axis) is also perpendicular to the magnetic field (+y axis), so the force is

F_{B_y}=qvB_y

And by substituting,

F_{B_y}=(4.9\cdot 10^{-6})(345)(1.9)=3.21\cdot 10^{-3} N

And by using the right-hand rule:

- Index finger: velocity (+z axis)

- Middle finger: magnetic field (+y axis)

- Thumb: force (-y axis)

3 0
3 years ago
Other questions:
  • Which of the following statements is true about light? A. Light needs a medium through which to travel B. Light can not be diffr
    7·1 answer
  • action and reaction are equal in magnitude and opposite in direction then , why do not they balance each other​
    9·1 answer
  • A box is being pulled to the right. What is the direction of the gravitational force?
    15·1 answer
  • In the ground state of hydrogen, the uncertainty in the position of the electron is roughly 0.10 nm. If the speed of the electro
    10·1 answer
  • A solenoid of length 18 cm consists of closely spaced coils of wire wrapped tightly around a wooden core. The magnetic field str
    8·1 answer
  • You hold a ruler that has a charge on its tip 6 cm above a small piece of tissue paper to see if it can be picked up. The ruler
    13·1 answer
  • A car is traveling 50 mph. It leaves Boston, Massachusetts at 5 a.m. and is
    7·1 answer
  • Why are multiple images seen when two plane mirrors are placed at an angle​
    5·1 answer
  • Help please i give brainlyest
    13·2 answers
  • A ball of plasticine is released from rest at height of 2.2 m above the ground. After touching the ground, the plasticine ball c
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!