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
ra1l [238]
3 years ago
11

Consider the electric force between a pair of charged particles a certain distance apart. By Coulomb's Law: If, the distance bet

ween the particles is tripled and each charge is doubled, the force becomes
a. 3/4 times b. 4/3 times c. 4/9 times d. 9/4 times
Physics
1 answer:
CaHeK987 [17]3 years ago
6 0

Answer:

becomes 4/9times the original force

You might be interested in
A. Compare solids, liquids, and gases in terms of the way their volumes change (or don't change) when placed into different cont
svet-max [94.6K]

a) Solids keep shape, liquids take shape of containers but don't spill, gases take container's shape and spill out

b) if you heat gas, speed of its molecules will increase and they'll push the container's walls stronger, so the pressure will increase when the container heated

c) Heat flows from warmer to colder bodies

d) For monatomic gases it's U=1.5nRT only, molecular gas has bonds between atoms so total internal energy increases

e) Of gases

f) v=\sqrt{\frac{3RT}{M}}=321 m/s

g) U=5/2*nRT=37830.85 J

7 0
3 years ago
Indentify the 3 types of heat tranfer
Elenna [48]

Answer:

Heat is transfered via solid material (conduction), liquids and gases (convection), and electromagnetical waves (radiation).

Feel free to ask...follow me

8 0
3 years ago
Read 2 more answers
A 1350 kg uniform boom is supported by a cable. The length of the boom is l. The cable is connected 1/4 the
olchik [2.2K]

Answer:

Tension= 21,900N

Components of Normal force

Fnx= 17900N

Fny= 22700N

FN= 28900N

Explanation:

Tension in the cable is calculated by:

Etorque= -FBcostheta(1/2L)+FT(3/4L)-FWcostheta(L)= I&=0 static equilibrium

FTorque(3/4L)= FBcostheta(1/2L)+ FWcostheta(L)

Ftorque=(Fcostheta(1/2L)+FWcosL)/(3/4L)

Ftorque= 2/3FBcostheta+ 4/3FWcostheta

Ftorque=2/3(1350)(9.81)cos55° + 2/3(2250)(9.81)cos 55°

Ftorque= 21900N

b) components of Normal force

Efx=FNx-FTcos(90-theta)=0 static equilibrium

Fnx=21900cos(90-55)=17900N

Fy=FNy+ FTsin(90-theta)-FB-FW=0

FNy= -FTsin(90-55)+FB+FW

FNy= -21900sin(35)+(1350+2250)×9.81=22700N

The Normal force

FN=sqrt(17900^2+22700^2)

FN= 28.900N

4 0
3 years ago
A small object begins a free-fall from a height of =81.5 m at 0=0 s . After τ=2.20 s , a second small object is launched vertica
-BARSIC- [3]

Answer:

33.2 m

Explanation:

For the first object:

y₀ = 81.5 m

v₀ = 0 m/s

a = -9.8 m/s²

t₀ = 0 s

y = y₀ + v₀ t + ½ at²

y = 81.5 − 4.9t²

For the second object:

y₀ = 0 m

v₀ = 40.0 m/s

a = -9.8 m/s²

t₀ = 2.20 s

y = y₀ + v₀ t + ½ at²

y = 40(t−2.2) − 4.9(t−2.2)²

When they meet:

81.5 − 4.9t² = 40(t−2.2) − 4.9(t−2.2)²

81.5 − 4.9t² = 40t − 88 − 4.9 (t² − 4.4t + 4.84)

81.5 − 4.9t² = 40t − 88 − 4.9t² + 21.56t − 23.716

81.5 = 61.56t − 111.716

193.216 = 61.56t

t = 3.139

The position at that time is:

y = 81.5 − 4.9(3.139)²

y = 33.2

7 0
3 years ago
What type of electromagnetic radiation is being used in the picture?
pashok25 [27]

Answer: b i think

Explanation:

6 0
3 years ago
Other questions:
  • Venus has about the same mass as Earth and is about the same distance from the Sun. Yet Venus does not support life. An importan
    13·2 answers
  • A lens for a spotlight is coated so that it does not transmit yellow light. if the light sources is white, what color is the spo
    12·1 answer
  • Find the speed for a star in which this line appears at wavelength 120.2 nm . Express your answer to three significant figures a
    15·1 answer
  • The electrostatic attractions in crystalline salts, such as sodium chloride, are formed by __________ between positive and negat
    8·2 answers
  • I WILL MARK YOU THE BRAINLIEST NO LINKS
    14·1 answer
  • What is the most common grip used in racket sports?
    10·1 answer
  • The gravitational field strength on earth is 10n/kg. find the weight of an object of mass 25kg​
    9·2 answers
  • A machine has mechanical advantage 2 , what does it mean ?​
    12·1 answer
  • An earthquake is a natural rapid shaking of the _______ caused by the release of stored energy in rocks
    8·1 answer
  • The following equation shows the position of a particle in time t, x=at2i + btj where t is in second and x is in meter. A=2m/s2,
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!