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
Vitek1552 [10]
2 years ago
5

The quantity that has units kg m2/sec2 is known as a

Physics
1 answer:
Svetach [21]2 years ago
8 0

Answer:

Energy

Explanation:

The unit is kg\ m^2/s^2.

We can see the formula of kinetic energy is

K.E=\frac{1}{2} mv^2

Where m is the mass and v is the velocity of the object.

Which means its unit would be kg times square of meter per second, that is  kg\ m^2/s^2. Which is often referred as Joule.

Also, when look at the formula of work done by an object.

W=f\times d

Where f is the force and d is the distance traveled by the object due to force f.

We an see that its unit is kg meter per second squared times meter. That is equivalent to kg\ m^2/s^2. This is also a type of energy.

So, the unit kg\ m^2/s^2 is the unit of energy.

You might be interested in
A centrifuge in a biology laboratory rotates at an angular speed of 3,400 rev/min. When switched off, it rotates 48.0 times befo
IgorLugansk [536]

Answer:

- 210 rad/s²

Explanation:

n = frequency of rotation = 3400/60 = 170/3 per sec.

angular velocity  ω ( 0 ) at time 0  = 2π n = 2π x 170/3

angular velocity at time t = ω(t) = 0

now, ω²( t) = w²(o) + 2α Φ ( α = angular acceleration and Φ = angular displacement) = 2π x 48 rad.

0 = ( 2π x 170/3 )² + 2α x 48 x 2π

α = - (2π x 170 x 170 )/ (3 x 3 x 2 x 48 ) = 210 rad / s²

7 0
3 years ago
A box of mass 50 kg is pushed hard enough to set it in motion across a flat surface. Then a 99-N pushing force is needed to keep
vitfil [10]

Answer:

0.20

Explanation:

The box is moving at constant velocity, which means that its acceleration is zero; so, the net force acting on the box is zero as well.

There are two forces acting in the horizontal direction:

- The pushing force: F = 99 N, forward

- The frictional force: F_f=\mu mg, backward, with

\mu coefficient of kinetic friction

m = 50 kg mass of the box

g = 9.8 m/s^2 gravitational acceleration

The net force must be zero, so we have

F-F_f = 0

which we can solve to find the coefficient of kinetic friction:

F-\mu mg=0\\\mu = \frac{F}{mg}=\frac{99 N}{(50 kg)(9.8 m/s^2)}=0.20

7 0
3 years ago
You are working for a manufacturing company. Your supervisor has an idea for controlling the position of a small bead by using e
Mashutka [201]

You are working for a manufacturing company, which is mathematically given as

  • m=3\sqrt{2}
  • m=\frac{15\sqrt{5}}{16}
  • x=0.747a
  • m/n=\frac{(x^2+a^2)3/2}{x^3}

<h3>What is the value of m that will place the movable bead in equilibrium at x-a a ....?</h3>

a)

Generally, the equation for the force of equilibrium is mathematically given as

F=2fcos\theta

Therefore

K(npq^2/a^2)=2\frac{kmpq^2}{a\sqrt{2}^2}0.5\\\\np=mP/ \sqrt{2}\\\\where n=3

m=3\sqrt{2}

b)

By force equilibrium

K(npq^2/(2a^2))=2*\frac{kmpq^2}{a\sqrt{5a}^2}* \frac{2a}{\sart{5a}}

Therefore

n/4=2/5*m*2/\sqrt{5}\\\\m= \frac{5\sqrt{5}}{16}\\\\\\\\

m=\frac{15\sqrt{5}}{16}

c)

K(npq^2/x^2)=2\frac{kmpq^2}{a\sqrt{x^2+a^2}^2}0.5*x/\sqrt{x^2+a^2}

x^2+a^2=(14/3)^{2/3}x^2

x=a/1.338

x=0.747a

d)

By force equilibrium

K(npq^2/x^2)=2\frac{kmpq^2n}{\sqrt{x^2+a^{3/2}}^2}\\\\n/x^2=\frac{2mx}{(x^2+a^2)^{3/2}}

m/n=\frac{(x^2+a^2)3/2}{x^3}

Read more about electric fields

brainly.com/question/9383604

#SPJ1

3 0
2 years ago
During resistance exercise, muscles are
Serjik [45]
<span>The correct answer should be something like working against a force. That is because resistance training consists of a force being applied opposite to what you're doing with your muscles. An example would be using dumbels. When you lift them up, they work opposite of your muscles because of gravity so you build resistance.</span>
5 0
2 years ago
Is water (H2O) a element? why or why not?
Dafna1 [17]
No it is not an element, it is a compound(two ore more elements bound together). It is one Oxygen and two Hydrogen bound together by covalent bonds.
8 0
3 years ago
Other questions:
  • How far does a cyclist travel if she's going 6 m/s in 10 seconds?
    9·1 answer
  • Determine the gravitational force of attraction between the Earth and the Sun given the mass of the earth is 6 x 10^24 kg, the m
    13·1 answer
  • What do all wetlands have in common?
    15·2 answers
  • What is the information gathered in an investigation is called
    10·1 answer
  • 1. The illuminance on a surface is 6 lux and the surface is 4 meters from the light source. What is the intensity of the source?
    12·2 answers
  • Why does the air pressure inside the tires of a car increase when the car is driven?
    6·1 answer
  • ____________ showed that matter and energy are two forms of the same thing.
    10·2 answers
  • what is the main reason that attitudes are more often revealed in spoken rather than written language
    9·1 answer
  • What do echolocation and ultrasounds have in common?
    14·1 answer
  • Which part of the curve shows:
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!