answer.
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
Scorpion4ik [409]
2 years ago
6

Which changes in an electric motor will make the motor stronger? Check all that apply. using a stronger permanent magnet using a

weaker permanent magnet increasing current in the electromagnet decreasing current in the electromagnet increasing the distance between the magnets decreasing the distance between the magnets
Physics
2 answers:
wariber [46]2 years ago
7 0
<h2>Answer:</h2>

The following changes will make the motor more stronger

  • <u>Using strong permanent magnets</u>
  • <u>Increasing the current</u>
  • <u>Decreasing the space between magnets</u>
<h2>Explanation:</h2>

Using string magnets will produce strong flux and the motor will become strong. The internal flux also deepness upon the strength of coil. Similarly by increasing current we can make the motor more powerful because according to power equation P=VI so increasing the current will increase the product of voltage and current resulting more power. In the same way by reducing the distance between magnets will make the motor stronger because the flux and torque will increase.

miv72 [106K]2 years ago
4 0
Use stronger magnets
increase current
push magnets closer to coil
adding more sets of coils
You might be interested in
A factory robot drops a 10 kg computer onto a conveyor belt running at 3.1 m/s. The materials are such that μs = 0.50 and μk = 0
frutty [35]

Answer:

x = 1.63 m

Explanation:

mass (m) = 10 kg

μk = 0.3

velocity (v) = 3.1 m/s

Assuming that most of the computers weight is applied on the belt instantaneously, we can apply the constant acceleration equation below

x = v^{2}/2a

where a = μk.g , therefore

x = v^{2}/2μk.g

x = (3.1 x 3.1)/(2 x 0.3 x 9.8)

x = 1.63 m

8 0
2 years ago
a ball on a string makes 30.0 revolutions in 14.4s, in a circle of radius 0.340m. what is its period.(unit=s)
STALIN [3.7K]

Answer:

0.480 seconds

Explanation:

The period is the time for 1 revolution.  Writing a proportion:

14.4 s / 30.0 rev = t / 1 rev

t = 0.480 s

The period is 0.480 seconds.

7 0
2 years ago
The Earth has mass ME and average radius RE. The Moon has mass MM and the average distance from the center of mass of the moon t
marusya05 [52]

Answer:

Moment of inertia of Earth about its own axis is given as

I = 9.7 \times 10^{37} kg m^2

Explanation:

Since Earth is considered as solid sphere

So we will have

I = \frac{2}{5}M_eR_e^2

so we will have

I = \frac{2}{5}(5.97 \times 10^{24})(6.371 \times 10^6)^2

so we have

I = 9.7 \times 10^{37} kg m^2

3 0
2 years ago
a batter hits a homerun in which the ball travels 110m horizontally with no appreciable air resistance. If the ball left the bat
e-lub [12.9K]

If you know the formula for horizontal range, then finding the solution is immediate:

r=\dfrac{{v_0}^2\sin2\theta}g

110\,\mathrm m=\dfrac{{v_0}^2\sin100^\circ}{9.8\,\frac{\mathrm m}{\mathrm s^2}}\implies v_0\approx33\,\dfrac{\mathrm m}{\mathrm s}

7 0
2 years ago
If two objects are electrically attracted to each other, 4) A) one object must be negatively charged and the other object must b
Drupady [299]

Answer:

option (a)

Explanation:

There are some properties of charge given as

(a) Charges are of two types: negative charge and positive charge.

(b) Like charges repel each other and unlike charges attract each other.

(c) charges are conserved in nature.

(d) charges are quarantined.

So, the two charges which are opposite in nature can only attract each other.

So, if there is one negative and one positive charge, they always attract each other.

The force of attraction or repulsion between the two charges is given by the Coulomb's law.

4 0
2 years ago
Read 2 more answers
Other questions:
  • For the meter stick shown in figure 10-4, the force F1 10.0 N acts at 10.0 cm. What is the magnitude of torque due to F1 about a
    13·1 answer
  • Six dogs pull a two-person sled with a total mass of 280 kg. The coefficient of kinetic friction between the sled and the snow i
    7·2 answers
  • explain why the impact of one heavy stone would produce waves with higher amplitude than the impact of the light stone would
    6·1 answer
  • This table shows Wayne’s weight on four different planets. Planet Wayne’s weight (pounds) Mars 53 Neptune 159 Venus 128 Jupiter
    9·1 answer
  • A boy uses a slingshot to launch a pebble straight up into the air. The pebble reaches a height of 37.0 m above the launch point
    13·1 answer
  • A penny is placed on a rotating turntable. Where on the turntable does the penny require the largest centripetal force to remain
    7·1 answer
  • Suppose an isolated box of volume 2V is divided into two equal compartments. An ideal gas occupies half of the container and the
    14·1 answer
  • The two major problems with most motor vehicles are that they burn fossil fuels and _____________.
    5·2 answers
  • Suppose you are talking by interplanetary telephone to your friend, who lives on the Moon. He tells you that he has just won a n
    11·1 answer
  • A turntable of radius R1 is turned by a circular rubberroller of radius R2 in contact with it at their outeredges. What is the r
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!