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
Luda [366]
2 years ago
9

Use what you have learned in the reading to answer the following question. The point of a compass needle points to Earth’s north

pole. The point in the compass needle has–
~the same polarity as Earth's north pole.
~the opposite polarity from Earth’s north pole.
~no polarity.
~unlimited polarity.
Physics
1 answer:
DIA [1.3K]2 years ago
6 0
I would say unlimited polarity because the compass’s needle is always attracted to Earth’s north pole.

Good luck to you!
You might be interested in
7. A force of 100 N acting on a body gives it a speed of 200 m/s in 2
alekssr [168]

Answer:

Choice a. 1 kg, assuming that all other forces on the object (if any) are balanced.

Explanation:

By Newton's Second Law,

\displaystyle a = \frac{\Sigma F}{m},

where

  • a is the acceleration of the object in \text{m}\cdot\text{s}^{-2},
  • \Sigma F is the net force on the object in Newtons, and
  • m is the mass of the object in kilograms.

As a result,

\displaystyle m = \frac{\Sigma F}{a}.

Assume that all other forces on this object are balanced. The net force on the object will be 100\;\text{N}. The net force is constant. Acceleration should also be constant and the same as the average acceleration in the two seconds.

<h3>What is the average acceleration of this object?</h3>

\displaystyle \begin{aligned}\text{Acceleration} &= \text{Average Acceleration}=\frac{\text{Change in Velocity}}{\text{Time Taken}}\end{aligned}.

\displaystyle {a} = \frac{200\;\text{m}\cdot\text{s}^{-1}}{2\;\text{s}}=100\;\text{m}\cdot\text{s}^{-2}.

<h3>Apply Newton's Second Law to find the mass of the object.</h3>

\displaystyle m = \frac{\Sigma F}{a} = \frac{100\;\text{N}}{100\;\text{m}\cdot\text{s}^{-2}} = 1\;\text{kg}.

6 0
3 years ago
Read 2 more answers
A mass m neutron has elastic collision with a mass m'
hoa [83]

Answer:

The neutron loses all of its kinetic energy to nucleus.

Explanation:

Given:

Mass of neutron is 'm' and mass of nucleus is 'm'.

The type of collision is elastic collision.

In elastic collision, there is no loss in kinetic energy of the system. So, total kinetic energy is conserved. Also, the total momentum of the system is conserved.

Here, the nucleus is still. So, its initial kinetic energy is 0. So, the total initial kinetic energy will be equal to kinetic energy of the neutron only.

Now, final kinetic energy of the system will be equal to the initial kinetic energy.

Now, as the nucleus was at rest initially, so the final kinetic energy of the nucleus will be equal to the initial kinetic energy of the neutron.

Thus, all the kinetic energy of the neutron will be transferred to the nucleus and the neutron will come to rest after collision.

Therefore, the neutron loses all of its kinetic energy to nucleus.

5 0
3 years ago
What are some errors made while doing measuring with a triple beam balance lab
nydimaria [60]
Make sure the triple beam balance is at 0 before you begin.
7 0
3 years ago
Read 2 more answers
Celine has raised the temperature of water to 100°C in order to cook pasta for her lasagna. What physical property is Celine dem
LuckyWell [14K]

Answer:

imma need a few answer choices so i can do my research

Explanation:

Please any thank you

5 0
2 years ago
The image shows a roller coaster.
mariarad [96]
I believe the answer is c but I’m not 100% sure
8 0
3 years ago
Other questions:
  • Displacement vectors of 3 m and 5 m in the same direction combine to ma
    6·1 answer
  • G (where g=9.8 m/s2). If an object’s mass is m=10. kg, what is its weight?
    11·1 answer
  • A series circuit contains four light bulbs. The switch is opened and one of the bulbs is removed, but not replaced. Then the swi
    11·1 answer
  • Light traveling through air encounter a second medium which slows the light to 2.7 x 10^8. What is the index of the medium?
    13·1 answer
  • Answer right I will cashapp $5
    5·2 answers
  • An 877 kg drag race car accelerates from rest to 116 km/h in 0.951 s. What change in momentum does the force produce? Answer in
    10·1 answer
  • 1.The lunch lady pushes a 100 kg zombie with 300 N of force. How much is the zombie accelerated?
    12·1 answer
  • Explain how to convert a galvanometer to an ammeter
    12·1 answer
  • Gaya adalah...?? [tolong yaaa..]
    9·1 answer
  • During photosynthesis, plants transform the energy in sunlight into chemical
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!