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
Paraphin [41]
3 years ago
7

The conventional relatively small unit for work(ignoring time) such as raising one pound one foot is the foot-pound(ft. lb.). Si

milarly, the joule is the unit of work that equates to _____ ft. lb., or the work to raise ______ pounds one foot or raising one pound _____ fee
Physics
1 answer:
Lelechka [254]3 years ago
6 0

Answer:

1 joule = 0.737 foot-pound

Joule is the unit of work.

1 J = 1 N·m

In SI units

1 J = 1 kg· m/s²

0.737 foot-pound is the amount of work to raise 0.737 pounds one foot or raising one pound to 0.737 ft.

You might be interested in
A forklift lifts 5 boxes from the ground to a height of 2 meters (m). The boxes push down with a force of 1000 newtons (N). How
Nata [24]
Hello!

Answer:

2000 J

Explanation

Work equation is expressed as:

W=F.d.Cos \alpha

Where:

F: Applied force
d: traveled distance
α: Angle between the direction of the force and the direction of the movement. (in this case, both of the direction are the same, so the angle is 0°)

By substituting:

F=1000N.2m.Cos(0)=2000N.m=2000 J

Have a nice day!
8 0
3 years ago
As plates move, large blocks of crust ___ along the faults
seraphim [82]

Answer:

move

Explanation:

i think that is it

as plates move large blocks of crust move along the faults

4 0
3 years ago
In a historical movie, two knight on horseback start from
mixer [17]

Answer:

The knights collide 53.0 m from the starting point of sir George.

Explanation:

The equation for the position in a straight accelerated movement is as follows:

x = x0 + v0 t + 1/2 a t²

where

x = position at time t

x0 = initial position

v0 = initial speed

a = acceleration

t = time

The position of the two knights is the same when they collide. Since they start from rest, v0 = 0:

Sir George´s position:

xGeorge = 0 m + 0 m + 1/2 * 0.300 m/s² * t²

Considering the center of the reference system as Sir George´s initial position, the initial position of sir Alfred will be 88.0 m. The acceleration of sir Afred will be negative because he rides in opposite direction to sir George:

xAlfred = 88.0 m + 0 m - 1/2 * 0.200  m/s² * t²

When the knights collide:

xGeorge = x Alfred

1/2 * 0.300 m/s² * t² = 88.0 m - 1/2 * 0.200  m/s² * t²

0.150 m/s² * t² = 88.0 m - 0.100  m/s² * t²

0.150  m/s² * t² + 0.100  m/s² * t² = 88.0 m

0.250 m/s² * t² = 88.0 m

t² = 88.0 m / 0.250 m/s²

t = 18.8 s

At t = 18.8 s the position of sir George will be

x =  1/2 * 0.300 m/s² * (18.8 s)² = <u>53.0 m </u>

5 0
3 years ago
A scuba diver measures an increase in pressure of around 10^5 Pa upon descending by 10 m, what is the change in force per square
IceJOKER [234]

Answer:

Explanation:

Given that, .

Pressure around scuba is

P = 10^5 Pa

1 Pa = 1 N/m²

Then

P = 10^5 N/m²

Descending height

h = 10m

Change in force per unit square centimetre

We know that,

Pressure = Force / Area

Then,

Force / Area is the required question we are finding

Then,

Force / Area = 10^5 N / m²

So, let convert the m² to cm²

100cm = 1m

(100cm)² = (1m)²

10⁴cm² = 1m²

Then,

Force / Area = 10^5 N/m² × 1m² / 10⁴cm²

Force / Area = 10 N/cm²

So, the force per unit square centimeters is 10.

7 0
3 years ago
4. In order to operate the theremin, a
cupoosta [38]

In order to operate the theremin, a conducting object must be moved within the electric fields produced by the instrument
6 0
3 years ago
Other questions:
  • A golf ball traveling 3m/s to the right collides in a head-on collision with a stationary bowling ball in a friction-free enviro
    6·1 answer
  • Sound waves are mechanical waves in which the particles in the medium vibrate ina direction parrallel to the direction of energy
    14·1 answer
  • If you are driving a car with a velocity of -25 m/s and you have an acceleration of -2 m/s^2, are you speeding up or slowing dow
    9·1 answer
  • Write a reaction equation to show HCO3 acting as an acid​
    13·1 answer
  • Which of the following changes would lead to an increase in the efficiency of
    10·1 answer
  • Two burglars are running down a street alley. Jack is carrying a metal safe and Jill
    11·2 answers
  • Write a question you would like to see on a quiz to calculate NET FORCE.
    5·1 answer
  • Please help with this :(
    7·1 answer
  • When moving a couch, you exert a force of 400N and push it 4.0m. How much work have you done on the couch?
    15·1 answer
  • What does personal mission statement?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!