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
bulgar [2K]
4 years ago
15

A 60.0 kg object is moving east at 8.00 m/s, and then slows down to 4.00 m/s. How much work was done?

Physics
2 answers:
Alja [10]4 years ago
7 0
Work can be calculated using the formula:
w = 0.5m ( vf^2 - vi^2)
where m is the mass of the object
vf is the final velocity of the object
vi is the initial velocity of the object

w = 0.5 ( 60 ) [ (4^2) - ( 8^2 ) ]
w = -1440 J was the work done by the object
Alex17521 [72]4 years ago
5 0

Answer:

-1440

Explanation:

You might be interested in
The block shown above has a mass of 105 g.<br> What is the density of the block? SC.8.P.8.3
zaharov [31]

The density of the block is 1.25 cm³

The correct answer to the question is Option B. 1.25 cm³

To solve this question, we'll begin by calculating the volume of the block. This can be obtained as follow:

Length = 7 cm

Height = 4 cm

Width = 3 cm

<h3>Volume =? </h3>

Volume = Length × Width × Height

Volume = 7 × 3 × 4

<h3>Volume = 84 cm³</h3>

Thus, the volume of the block is 84 cm³

Finally, we shall determine the density of the block. This can be obtained as follow:

Density is defined as mass per unit volume i.e

Density = \frac{mass}{volume} \\\\

Mass of block = 105 g

Volume of block = 84 cm³

<h3>Density of block =? </h3>

Density = \frac{mass}{volume}\\\\Density = \frac{105}{84}\\\\

<h3>Density of block = 1.25 cm³</h3>

Therefore, the density of the block is 1.25 cm³.

Hence, Option B. 1.25 cm³ gives the correct answer to the question.

Learn more: brainly.com/question/2040396?referrer=searchResults

4 0
2 years ago
Which of the following is least likely to be a scientific experiment?
nikitadnepr [17]
D should be the answer
3 0
3 years ago
HELP PLEASE DUE 3 MINUTES HELP
Elena-2011 [213]

Answer:

Mechanical weathering breaks rocks into smaller pieces without changing their composition. ... Chemical weathering breaks down rocks by forming new minerals that are stable at the Earth's surface. Water, carbon dioxide, and oxygen are important agents of chemical weathering.

Explanation:

8 0
3 years ago
A uniform bar has two small balls glued to its ends. The bar has length L and mass M, while the balls each have mass m and can b
vazorg [7]

Answer:

Explanation:

Length of bar = L

mass of bar = M

mass of each ball = m

Moment of inertia of the bar about its centre perpendicular to its plane is

I_{1}=\frac{ML^{2}}{12}

Moment of inertia of the two small balls about the centre of the bar perpendicular to its plane is

I_{2}=2\times m\times \frac{L^{2}}{4}

I_{2}=\frac{mL^{2}}{2}

Total moment of inertia of the system about the centre of the bar perpendicular to its plane is

I = I1 + I2

I=\frac{ML^{2}}{12}+\frac{mL^{2}}{2}

I=\frac{(M +6m)L^{2}}{12}

8 0
3 years ago
El sonido es una onda que?
Lina20 [59]

Answer:

Ondas y sonido. Una onda es una perturbación que avanza o que se propaga en un medio material o incluso en el vacío. ... El sonido es un tipo de onda mecánica que se propaga únicamente en presencia de un medio material.

Explanation:

3 0
3 years ago
Other questions:
  • Observing a spacecraft land on a distant asteroid, scientists notice that the craft is falling at a rate of 4 m/s. when it is 18
    11·1 answer
  • I NEED HELP VERY SOON PLEASE
    11·1 answer
  • This type of polarization occurs when light strikes the atoms of a material.
    6·2 answers
  • A 3-ft3 rigid tank initially contains saturated water vapor at 300°F. The tank is connected by a valve to a supply line that car
    15·2 answers
  • An athlete ran a distance of 100 meters in 9.83 Seconds<br> What’s his average speed
    10·1 answer
  • How many neutrons does an atom have with a mass of 108 and an atomic number of 47?
    5·1 answer
  • A stone is dropped from a cliff 64 feet above the ground. Answer the following, using -32 ft/sec2 as the acceleration due to gra
    5·1 answer
  • A penny of mass 3.10 g rests on a small 20.0 g block supported by a spinning disk with radius of 12.0 cm. The coefficients of fr
    14·1 answer
  • What benefits does preforming this investigation in the physical world have over the computer simulation?
    11·1 answer
  • A 1000-kg sports car of mass accelerates from rest to 20 m/s in 6.6 s. What is the frictional force exerted by the road on the c
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!