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
brilliants [131]
3 years ago
13

It takes 40 J to push a large box 4 m across a floor.

Physics
1 answer:
astra-53 [7]3 years ago
5 0

Answer: D

Explanation:

Use equation for work:

W=F*s

W=40J

s=4m

-------------

W=F*s

F=W/s

F=40J/4m

F=10N

You might be interested in
Which of the following cannot be determined by analyzing the periodic table?
dybincka [34]

Your answer is C) The year the element was discovered :)

4 0
3 years ago
Read 2 more answers
Pete Zaria works on weekends at Barnaby's Pizza Parlor. His primary responsibility is to fill drink orders for customers. He fil
laila [671]

Answer:

W_n_e_t=7.648512 \approx 7.6J

K.E=0.8J

v=0.7844645406 \approx 0.78m/s

Explanation:

From the question we are told that

Mass of pitcher   M= 2.6kg

Force on pitcher f=8.8N

Distance traveled 48cm=>0.48m

Coefficient of friction \mu=0.28

a)Generally frictional force is mathematically given by

F=\mu N

F=0.28*2.6*9.8

F=7.1344N

Generally work done on the pitcher is mathematically given as

W_n_e_t=W_f+W_F

W_f=8.8*0.48=>4.224N\\W_F=7.1344*0.48=>3.424512N

W_n_e_t=4.224-3.424512

W_n_e_t=0.799488\approx 0.8J

b)Generally K.E can be given mathematically as

K.E= W_n_e_t

Therefore

K.E=0.8J

c)Generally the equation for kinetic energy is mathematically represented by

K.E=1/2mv^2

0.8=1/2mv^2

Velocity as subject

v=\sqrt{\frac{K.E*2}{m} }

v=\sqrt{\frac{0.8*2}{2.6} }

v=0.7844645406 \approx 0.78m/s

6 0
3 years ago
The primary_______ cortex specializes in receiving signals from different parts of the body?
nikitadnepr [17]

Answer:

somatosensory

Explanation:

The primary somatosensory cortex specializes in receiving signals from different parts of the body.

4 0
4 years ago
Tech a says that the pcv system recirculates exhaust gases into the intake manifold. tech b says that the pcv system recirculate
d1i1m1o1n [39]

Tech a says that the pcv system recirculates exhaust gases into the intake manifold called Reconstruction debate that had federalism debate that had been an issue since the 1790s.

Reconstruction failed by most other measures: Radical Republican legislation ultimately failed to protect former slaves from white persecution and failed to engender recirculates changes to the social fabric of the South. When President Rutherford B. federalism debate that had been an issue since the 1790s almost mediately . Hayes removed federal troops from the South in 1877, former recirculates officials and slave returned to With the support of a conservative Supreme Court, these newly empowered white southern politicians passed black codes, voter qualifications, and other anti-progressive legislation to reverse the rights that blacks had gained during Radical Reconstruction. The U.S. Supreme Court bolstered this federalism anti-progressive movement federalism  with decisions in the Slaughterhouse Cases, the Civil Rights Cases, and United States v.

Learn more about Reconstruction on:

brainly.com/question/24761999

#SPJ4

5 0
1 year ago
A tin can has a volume of 1100 cm³ and a mass of 80 g. Approximately how many grams of lead shot can it carry without sinking in
Kruka [31]

Answer:

1020g

Explanation:

Volume of can=1100cm^3=1100\times 10^{-6}m^3

1cm^3=10^{-6}m^3

Mass of can=80g=\frac{80}{1000}=0.08kg

1Kg=1000g

Density of lead=11.4g/cm^3=11.4\times 10^{3}=11400kg/m^3

By using 1g/cm^3=10^3kg/m^3

We have to find the mass of lead which shot can it carry without sinking in water.

Before sinking the can  and lead inside it they are floating in the water.

Buoyancy force =F_b=Weight of can+weight of lead

\rho_wV_cg=m_cg+m_lg

Where \rho_w=10^3kg/m^3=Density of water

m_c=Mass of can

m_l=Mass of lead

V_c=Volume of can

Substitute the values then we get

1000\times 1100\times 10^{-6}=0.08+m_l

1.1-0.08=m_l

m_l=1.02 kg=1.02\times 1000=1020g

1 kg=1000g

Hence, 1020 grams of lead shot can it carry without sinking water.

4 0
4 years ago
Other questions:
  • The refrigeration cycle uses _____.
    6·2 answers
  • Your team of test engineers is to release the parking brake so an 768.0-kg car will roll down a very long 6.1 percent grade in p
    10·1 answer
  • What is kinetic energy
    12·1 answer
  • All circular motions are usually periodic but all periodic motions are not circular why
    13·1 answer
  • What causes a disturbance that resultWhich statement correctly distinguishes between mechanical and electromagnetic waves?
    15·1 answer
  • Describe 4 motions of the sun, Earth, and the Moon system
    13·1 answer
  • Give an example where the following energy transformation would occur:<br> Chemical to thermal *
    5·1 answer
  • When friction slows a sliding block___
    12·1 answer
  • Tại hai điểm C và D cách nhau 5 cm trong không khí đặt hai điện tích q1=-4x10^-8 và q2 = 3x10^-8 xác định lực điện trường do 2 đ
    7·1 answer
  • Question 2
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!