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
AleksandrR [38]
4 years ago
10

When you decrease the length of the effort arm on a lever which of the following happens to effort force? A. Force will decrease

B. Force will increase C. Force will vary D. Force will remain the same.
Physics
1 answer:
Aleks [24]4 years ago
3 0

The force will increase

You might be interested in
What is force derived from
Nata [24]

Answer:

Force can also be described intuitively as a push or a pull. ... It is measured in the SI unit of newtons and represented by the symbol F. The original form of Newton's second law states that the net force acting upon an object is equal to the rate at which its momentum changes with time.

Explanation:

hope this helps : )

6 0
4 years ago
Which of the following is not a characteristic of the source of rivers and streams?
MrRa [10]
<span>The water is  clearer, has higher oxygen levels, and freshwater fish such as trout and heterotrophs can be found. In the middle of the river, the width increases, so do the species of  aquatic green plants and algae. Toward the mouth of the river, the water becomes murky from all the sediments that it has picked up upstream.<span>
</span></span>
7 0
4 years ago
The per-unit impedance of a single-phase electric load is 0.3. The base power is 500 kVA, and the base voltage is 13.8 kV. a. Fi
Leto [7]

Answer:

114.26

Explanation:

a)Formula for per unit impedance for change of base is

Zpu2= Zpu1×(kV1/kV2)²×(kVA2/kVA1)

Zpu2: New per unit impedance

Zpu1: given per unit impedance

kV1: give base voltage

kV2: New bas votlage

kVA1: given bas power

kVA2: new base power

In the question

Zpu2=??

Zpu1= 0.3

kV2=24kV

kV1= 13.8 kV

kVA2= 1MVA ×1000= 1000 kVA

kVA1=500kVA

Zpu2= 0.3(13.8/24)²×(1000/500)

Zpu2= 0.198

b) to find ohmic impedance we will first calculate base value of impedance(Zbase). So,

Zbase= kV²/MVA

  Zbase= 13.8²/(500/1000)

  Zbase=380.88

Now that we have base value of impedance, Zbase, we can calculate actual ohmic value of impedance(Zactual) by using the following formula:

Zpu=Zactual/Zbase

0.3= Zactual/380.88

Zactual= 114.26 ohms

8 0
4 years ago
A doodler effect occurs when a source of sounds move
Alla [95]

Answer:

yes its true

Explanation:

8 0
3 years ago
Read 2 more answers
6. A child tugs on a rope attached to a 0.62-kg toy with a horizontal force
ser-zykov [4K]

Answer:

Explanation:

Force Mass * acceleration

F = ma

a = F/m

Sum of force = 16.3N - 15.8N = 0.5N

Mass = 0.62kg

Substitute

a = 0.5/ * 0.62

a = 0.81m/s²

The acceleration of the toy is 0.81m/s²

8 0
3 years ago
Other questions:
  • A system uses 2380 I of energy to do work as 12,900 j of heat are added to the system. The change in internal energy of the syst
    13·1 answer
  • The ______ is between the mesosphere and the exosphere. troposphere stratosphere thermosphere exosphere
    8·2 answers
  • An experiment is designed to test what color of light will activate a photoelectric cell the best. The photocell is set in a cir
    10·2 answers
  • A cube that is 20 nanometer on an edge contains 399,500 silicon atoms, and each silicon atom has 14 electrons and 14 protons. In
    5·1 answer
  • If f3=0 and f1=12n, what does the magnitude of f? 2 have to be for there to be rotational equilibrium? answer numerically in new
    15·1 answer
  • Describe electric discharge
    10·2 answers
  • If a behavior tends to increase after a consequence occurs, that consequence is most likely used as.
    15·1 answer
  • A child whose weight is 287 N slides down a 7.20 m playground slide that makes an angle of 31.0° with the horizontal. The coeff
    15·1 answer
  • An object located near the surface of Earth has a weight of a 245 N
    5·1 answer
  • What can cause electricity to jump across a gap
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!