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
yulyashka [42]
2 years ago
11

PLEASE HELP ASAP!! WILL GIVE BRAINLIEST

Physics
1 answer:
nignag [31]2 years ago
8 0
I think it may be c
You might be interested in
A particle with charge −− 5.90 nCnC is moving in a uniform magnetic field B⃗ =−(B→=−( 1.28 TT )k^k^. The magnetic force on the p
maks197457 [2]

Answer:

Explanation:

Given that,

Charge q=-5.90nC

Magnetic field B= -1.28T k

And the magnetic force

F =−( 3.70×10−7N )i+( 7.60×10−7N )j

Let the velocity be V(xi + yj + zk)

Then, the force is given as

Note i×i=j×j×k×k=0

i×j=k. j×i=-k

j×k=i. k×j=-i

k×i=j. i×k=-j

The force in a magnetic field is given as

F= q(v×B)

−( 3.70×10−7N )i+( 7.60×10−7N )j =

q(xi + yj + zk) × -1.28k

−( 3.70×10−7N )i+( 7.60×10−7N )j=

q( -1.28x i×k - 1.28y j×k - 1.28z k×k)

−( 3.70×10−7N )i+( 7.60×10−7N )j=

q( 1.28xj - 1.28y i )

−( 3.70×10−7N )i+( 7.60×10−7N )j=

q( -1.28y i + 1.28x j)

So comparing comparing coefficients

let compare x axis component

-( 3.70×10−7N )i=-1.28qy i

−3.70×10−7N = -1.28qy

y= -3.7×10^-7/-1.28q

y= -3.7×10^-7/-1.28×-5.90×10^-9)

y=-48.99m/s

y≈-49m/s

Let compare y-axisaxis

7.6×10−7N j = 1.28qx j

7.6×10−7N = 1.28qx

x= 7.6×10^-7/1.28q

x= 7.6×10^-7/1.28×-5.90×10^-9

x=-100.64m/s

a. Then, the velocity of the x component is x= -100.64m/s

b. Also, the velocity component of the y axis is y=-49m/s

c. We will compute

V•F

V=-100.64i -49j

F=−( 3.70×10−7 N )i+( 7.60×10−7 N )j

Note

i.j=j.i=0. Also i.i = j.j =1

V•F is

(-100.64i-49j)•−(3.70×10−7N)i+(7.60×10−7 N )j =

3.724×10^-5 - 3.724×10^-5=0

V•F=0

d. Angle between V and F

V•F=|V||F|Cosx

0=|V||F|Cosx

Cosx=0

x= arccos(0)

x=90°

Since the dot product is zero, from vectors , if the dot product of two vectors is zero, then the vectors are perpendicular to each other

4 0
3 years ago
When you run outside you transform what energy into what energy
erica [24]
Potential energy and kinetic energy
6 0
3 years ago
One of the most studied objects in the night sky is the Crab nebula, the remains of a supernova explosion observed by the Chines
erica [24]

Answer:

The angular speed of the Crab nebula pulsar is 190.3 rad/s.

Explanation:

Given that,

Time T= 33 ms = 0.033 s

The angular speed is equal to the 2π divided by time period.

We need to calculate the angular speed of the Crab nebula pulsar

Using formula of angular speed

\omega=\dfrac{2\pi}{T}

Where, T = time

\omega = angular speed

Put the value into the formula

\omega=\dfrac{2\pi}{0.033}

\omega=190.3\ rad/s

Hence, The angular speed of the Crab nebula pulsar is 190.3 rad/s.

7 0
2 years ago
Two plane mirrors are inclined at an angle of 70. For a ray of light, incident on mirror 1 , its angle of reflection from mirror
tester [92]

Answer:

D

Explanation:

Two plane mirrors are inclined at 70∘. A ray incident on one mirror at incidence angle θ after reflection falls on the second mirror and is reflected from there parallel to the first mirror, The value of θ is. ∴(θ)=50∘.

8 0
3 years ago
When checking the charging system on a late-model vehicle: Technician A connects a scan tool to monitor the system voltage outpu
bearhunter [10]

Answer:

C) Both 1 and 2

Explanation:

The scan tool may include a bi-directional control that allows the technician to control the output of the alternator for testing purposes.

The Diagnostic Trouble Codes (DTCs), are used by automobile manufacturers to diagnose problems related to the vehicle.

The scan tool can also be used to monitor the output voltage of the vehicle to verify if the correct amount of voltage is supplied by the alternator.

Both Technicians A and B are correct because the steps they both take are necessary for the diagnosis of the vehicle.

5 0
3 years ago
Other questions:
  • What wave phenomenon is responsible for the sunlight shown in this diagram? A.)Diffraction, because light is bent around the clo
    14·2 answers
  • Which statement describes the reason for the change in the velocity of waves as temperature decreases?
    9·1 answer
  • 34.6 cL= (blank) hL convert
    12·1 answer
  • Which of the following represents an image that is located in front of a lens?
    5·2 answers
  • According to Boyle’s law, PV= K, what was the volume at the time of the first measurement given the following information? Round
    15·1 answer
  • What is the two-step procedure that congress follows when appropriating money
    5·1 answer
  • If we heated the ball up and kept the ring room temperature, would the ball be able to fit through the ring? (1 point) Why or wh
    12·1 answer
  • How are the direction of the net force on an object and the direction of the object’s acceleration related?
    15·1 answer
  • Does the size of the magnetic field change with the size of the magnet?
    10·1 answer
  • Physics - Electricity and Magnetism
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!