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
rusak2 [61]
3 years ago
12

A force of 203 N is used to move a television 2.3 m. How much work is done?

Physics
1 answer:
tresset_1 [31]3 years ago
4 0

Answer:

the answer is 466.9 J

Explanation:

workdone= force×distance

force=203N

distance=2.3m

workdone=203×2.3=

466.9J

You might be interested in
(a) In the baggage claim area of an airport, a particular baggage carousel is shaped like a section of a large cone, steadily ro
Tom [10]

Answer:

Part a)

F_f = 107.8 N

Part b)

\mu = 0.415

Explanation:

Part a)

Time period of one revolution is given as

T = 42 s

now the angular speed of the belt is given as

\omega = \frac{2\pi}{T}

\omega = \frac{2\pi}{42}

\omega = 0.15 rad/s

Now at rest position the force along the surface of carousel must be constant

so we will have

mgsin\theta + m\omega^2 r cos\theta = F_f

30(9.81)sin20.5 + 30(0.15^2)(7.46)cos20.5 = F_f

F_f = 107.8 N

Part b)

New Time period of one revolution is given as

T = 30 s

now the angular speed of the belt is given as

\omega = \frac{2\pi}{T}

\omega = \frac{2\pi}{30}

\omega = 0.21 rad/s

Now at rest position the force along the surface of carousel must be constant

so we will have

mgsin\theta + m\omega^2 r cos\theta = F_f

30(9.81)sin20.5 + 30(0.21^2)(7.94)cos20.5 = F_f

F_f = 112.9 N

Also we know that in perpendicular direction also force is balanced

F_n + m\omega^2 r sin\theta = mgcos\theta

F_n = mgcos\theta - m\omega^2 r sin\theta

F_n = 30(9.81)cos20.5 - 30(0.21)^2(7.94)sin20.5

F_n = 272 N

now for friction coefficient we will have

F_f = \mu F_n

112.9 = \mu 272

\mu = 0.415

8 0
3 years ago
In the figure, if Q = 52 µC q =10 µC and d = 55 cm, what is the magnitude of the electrostatic force on q?​
GenaCL600 [577]

Answer:

F = 15.47 N

Explanation:

Given that,

Q = 52 µC

q = 10 µC

d = 55 cm = 0.55 m

We need to find the magnitude of the electrostatic force on q. The formula for the electrostatic force is given by :

F=k\dfrac{q_1q_2}{d^2}\\\\F=9\times 10^9\times \dfrac{52\times 10^{-6}\times 10\times 10^{-6}}{(0.55)^2}\\\\F=15.47\ N

So, the magnitude of the electrostatic force is 15.47 N.

4 0
3 years ago
Find the de Broglie wavelength of the following. (a) a 4-MeV proton 14.3 Correct: Your answer is correct. fm (b) a 40-GeV electr
kherson [118]

a) de Broglie wavelength of a 4-MeV proton: 14.3 fm

b) de Broglie wavelength of a 40-GeV electron: 0.031 fm

Explanation:

a)

The de Broglie wavelength of an object is given by

\lambda=\frac{h}{p} (1)

where

h is the Planck constant

p is the momentum of the particle

Here we want to find the de Broglie wavelength of a 4-MeV proton. The rest of mass of the proton in MeV is

m_0 = 938 MeV

And since 4MeV, this means that the proton is non-relativistic. So its kinetic energy is related to its momentum by

E=\frac{p^2}{2m}

which means

p=\sqrt{2Em}

where

E=4 MeV \cdot 10^6 eV/MeV \cdot 1.6\cdot 10^{-19] J/eV=6.4\cdot 10^{-13} J is the kinetic energy

m=1.67\cdot 10^{-27} kg is the proton mass

Substituting, we find

\lambda=\frac{h}{\sqrt{2Em}}=\frac{6.63\cdot 10^{-34}}{\sqrt{2(6.4\cdot 10^{-13})(1.67\cdot 10^{-27})}}=14.3\cdot 10^{-15} m = 14.3 fm

b)

In this case, the electron has kinetic energy of 40 GeV, while the rest mass of an electron is

m_0 = 0.511 MeV

Since 40 GeV >> 0.511 MeV, the electron is ultra-relativistic: so we can rewrite its energy as

E = pc

The equation (1) can also be rewritten as

\lambda = \frac{hc}{pc}

where c is the speed of light. The quantity at the denominator is the energy, so

\lambda=\frac{hc}{E}

where:

E=40 GeV = 40\cdot 10^9 eV \cdot (1.6\cdot 10^{-19})=6.4\cdot 10^{-9} J is the energy of the electron

And substituting, we find:

\lambda=\frac{(6.63\cdot 10^{-34})(3\cdot 10^8)}{6.4\cdot 10^{-9}}=3.1 \cdot 10^{-17} m = 0.031 fm

Learn more about de Broglie wavelength:

brainly.com/question/7047430

#LearnwithBrainly

4 0
3 years ago
Define the relationship between refraction and reflection
ElenaW [278]
Reflection and refraction are two different phenomenons. In case of reflection, wave bounces back into the same medium after incident with the interface of two mediums. Reflection will happen if surface is shiny as well as smooth. If surface is irregular, one will get diffused reflection. Refraction means bending of light when waves travel from one medium to another
8 0
4 years ago
Lamar Gant, U.S. powerlifting star, became the first man to deadlift five times his own body weight in 1985. Deadlifting involve
Masja [62]

Answer:

W = 5586[J]

Explanation:

Work in physics is defined as the product of force by a distance.

W=F*d

where:

W = work [J]

F = force = m*g [N]

m = mass = 300 [kg]

g = gravity acceleration = 9.81 [m/s²]

d = distance = 1.9 [m]

Now replacing:

W=m*g*d\\W=300*9.81*1.9\\W=5586[J]

4 0
3 years ago
Other questions:
  • Pots A and B both have plain soil, bean seeds, and the same amount of light. Pot B receives more water (see table). After 50 day
    14·1 answer
  • A train is traveling at a speed of
    12·1 answer
  • A research Van de Graaff generator has a 2.00-m diameter metal sphere with a charge of 5.00 mC on it.
    11·1 answer
  • P7.36 A ship is 125 m long and has a wetted area of 3500 m2. Its propellers can deliver a maximum power of 1.1 MW to seawater at
    15·1 answer
  • A runner taking part in the 200 m dash must run around the end of a track that has a circular arc with a radius of curvature of
    8·1 answer
  • On the periodic table, there are two numbers in the block for the element potassium, K: 19 and 39.098. What are the names of the
    10·2 answers
  • A person runs 3km north. One hour later, she runs 3km south, which of the following statements describes the persons complete tr
    9·1 answer
  • You used 100 N of force to push a shopping cart 5m down the aisle in the grocery store. How much work did you do? *
    8·2 answers
  • HELP ME HOW ARE BLACK HOLES FROMED
    8·2 answers
  • Please help me asap​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!