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
juin [17]
3 years ago
8

You stand new the earth's equator. A positively charged particle that starts moving parallel to the surface of the earth in a st

raight line directed cast is initially deflected upwards. If you know there are no electric fields in the vicinity, a possible reason why the particle does not initially acquire a downward component of velocity is because near the equator the magnetic field lines of the earth are directed
a. upward.
b. downward.
c. from south to north.
d. from north to south.
e. from east to west.
Physics
1 answer:
Talja [164]3 years ago
3 0

Answer:

c. from south to north

Explanation:

since we know that:

F = qv×B

where F is the force and in this case is pointed upward

where v is the velocity due east

the field must be due north by the right hand rule

Therefore,  near the equator the magnetic field lines of the earth are directed north from south

You might be interested in
a 75 kg man is standing at rest on ice while holding a 4kg ball. if the man throws the ball at a velocity of 3.50 m/s forward, w
AysviL [449]

Answer:

His resulting velocity will be 0.187 m/s backwards.

Explanation:

Given:

Mass of the man is, M=75\ kg

Mass of the ball is, m=4\ kg

Initial velocity of the man is, u_m=0\ m/s(rest)

Initial velocity of the ball is, u_b=0\ m/s(rest)

Final velocity of the ball is, v_b=3.50\ m/s

Final velocity of the man is, v_m=?\ m/s

In order to solve this problem, we apply law of conservation of momentum.

It states that sum of initial momentum is equal to the sum of final momentum.

Momentum is the product of mass and velocity.

Initial momentum = Initial momentum of man and ball

Initial momentum = Mu_m+mu_b=75\times 0+4\times 0 =0\ Nm

Final momentum = Final momentum of man and ball

Final momentum = Mv_m+mv_b=75\times v_m+4\times 3.50 =75v_m+14

Now, initial momentum = final momentum

0=75v_m+14\\\\75v_m=-14\\\\v_m=\frac{-14}{75}\\\\v_m=-0.187\ m/s

The negative sign implies backward motion of the man.

Therefore, his resulting velocity is 0.187 m/s backwards.

3 0
3 years ago
Decreasing a telescope's eyepiece focal length will _____.
Novay_Z [31]
I believe the correct answer from the choices listed above is the first option. Decreasing a telescope's eyepiece focal length will increase magnification. <span>The magnification of the </span>telescope<span> image is (</span>focal length<span> of the objective) divided by (</span>focal length <span>of the </span>eyepiece<span>). Hope this answers the question.</span>
7 0
3 years ago
Read 2 more answers
According to the Creative Curriculum model, the _____ sets the context for teaching and learning
vladimir2022 [97]

Answer:

A. structure of the classroom

Explanation:

According to the Creative Curriculum model, the _ structure of the classroom_ sets the context for teaching and learning.  

In creative curriculum model children learn through creative and active learning strategy. Creative curriculum are implemented through structure of classrooms. Creative curriculum stands to enhance skill of the the students and inculcate in them passion for learning.

3 0
3 years ago
Which is the best predictor of the radioactive nature of an isotope?
azamat
The best predictor of the radioactive nature of an isotope is the neutron-to-proton ratio of the atom. Isotopes are atoms of elements having the same number of protons however they don't have the same number of neutrons. Each isotope of an element will have different values of mass number.
3 0
3 years ago
Read 2 more answers
What is the magnitude of the centripetal force that must be applied in order for a 2kg ball on a 2.0 m string to spin with unifo
NeTakaya

The ball needs to accelerate with a magnitude <em>a</em> (pointed towards the center of the circle) of

<em>a</em> = (5.0 m/s)² / (2.0 m) = 12.5 m/s²

Then the required tension <em>F</em> in the string would need to be

<em>F</em> = (2 kg) (12.5 m/s²) = 25 N

6 0
3 years ago
Read 2 more answers
Other questions:
  • How large an expansion gap should be left between steel railroad rails if they may reach a maximum temperature 36.0°C greater th
    15·1 answer
  • You are riding on your bike and stop pedaling , coasting along the road. eventually, your bike slows down and stops. what happen
    12·1 answer
  • If the volume of a hot air balloon remains constant, what happens as the temperature of the air inside the balloon increases?
    9·1 answer
  • The atomic number of an atom is the number of ____.
    11·2 answers
  • What are scientists who study the forces and shape of the earth called?
    8·1 answer
  • Sawyer launches his 180 kg raft on the Mississippi River by pushing on it with a force of 75N. How long must Sawyer push on the
    13·1 answer
  • Here the file attached
    10·2 answers
  • Given that average speed is distance traveled divided by time, determine the values of m and n when the time it takes a beam of
    6·1 answer
  • Freeeeeeeeeeeeeeeeeeeeeeeee points
    14·2 answers
  • How far did Michael Phelps swim, if he swam at a speed of 10m/s in 30 seconds?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!