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
kirill115 [55]
3 years ago
9

True or false ,if false write right answer

Physics
1 answer:
steposvetlana [31]3 years ago
5 0
False. If general, ramps increase distance, but decrease the amount of force needed to move an object the same vertical distance without the ramp.
You might be interested in
Why do all planets rotate around the sun in the ssame direction
Nutka1998 [239]
This is because of the conservation of angular momentum, which allows most planets to spin in the same direction, but Venus and Uranus have seem to ignore this as they spin in different directions, as Venus spins clockwise and Uranus is on its side
3 0
3 years ago
What is serve in volleyball?
madreJ [45]
Underhand serve is a type of volleyball serve in which a player holds the ball with one hand and swings the other hand in an arc motion, striking under the ball with a fist to put it into play. An underhand serve is the most common serve for beginners.
3 0
3 years ago
Read 2 more answers
A current of 0.4 A flows through a wire. How many electrons flow through a cross section of
Free_Kalibri [48]

9 × 10²¹ electrons flow through a cross section of the wire in one hour.

<h3>What is the relation between current and charge?</h3>
  • Mathematically, current = charge / time
  • In S.I. unit, Charge is written in Coulomb and time in second.

<h3>What is the amount of charge flown through a wire for one hour if it carries 0.4 A current?</h3>
  • Charge= current × time
  • Current= 0.4 A, time = 1 hour= 3600 s
  • Charge= 0.4× 3600

= 1440 C

<h3>How many numbers of electrons present in 1440C of charge?</h3>
  • One electron= 1.6 × 10^(-19) C
  • So, 1440 C = 1440/1.6 × 10^(-19)

= 9 × 10²¹ electrons

Thus, we can conclude that the 9 × 10²¹ electrons flow through a cross section of the wire in one hour.

Learn more about current here:

brainly.com/question/25922783

#SPJ1

4 0
2 years ago
Please select the word from the list that best fits the definition
vagabundo [1.1K]

Answer:input work

Explanation:

7 0
3 years ago
Read 2 more answers
20. A semiconductor is a
Stells [14]

Answer:

D. crystalline solid that conducts current under certain conditions

Explanation:

Semiconductors are crystalline solids that has the ability to conduct electrical currents but on certain conditions e.g heat. The conduction of semiconductors is less than that of conductors (metals) but more than insulators (nonmetals), hence, they are said to be intermediates of conductors and insulators in terms of electrical conductivity.

Examples of semiconductors are silicon, boron, carbon, germanium, arsenic etc.

5 0
3 years ago
Other questions:
  • What Is the acceleration of a toy car that starts from rest and has a speed of 0.12 m/s after 0.1?
    6·1 answer
  • Which waves move by replacing one particle with another
    11·2 answers
  • In the absence of air, why does the horizontal component of velocity for a projectile remain constant while the vertical compone
    15·1 answer
  • Explain how the weight of an object is an application of newton's second law
    7·1 answer
  • Select all of the following that describes momentum, p [mark all correct answers]
    11·1 answer
  • A transformation of ΔSTV results in ΔUTV. Which transformation maps the pre-image to the image?
    13·2 answers
  • Which describes the two parts of a measurement? a unit and a symbol a conversion factor and a number a symbol and a conversion f
    11·2 answers
  • You decide to visit Santa Claus at the north pole to put in a good word about your splendid behavior throughout the year. While
    11·1 answer
  • Carly rode her bike for 300 meters in 30 seconds. One can calculate her​
    9·1 answer
  • Jxjxjfjfjfknfnfnnfmfgmmmmmmmm(xmpqitexsy.)​
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!