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
olga2289 [7]
1 year ago
15

A block has a mass of 4.726 g and a volume of 128.9 cm3. calculate the density in g/cm3

Physics
1 answer:
nordsb [41]1 year ago
6 0

The density of the block is 0.036 g / cm^{3}

We know that,

Density = Mass / Volume

Given that,

Mass = 4.726 g

Volume = 128.3 cm^{3}

Density = 4.726 / 128.3 = 0.036 g / cm^{3}

Density is defined as the unit mass per unit volume. It is represented using ρ.

Therefore, the density of the block is 0.036 g / cm^{3}

To know more about density

brainly.com/question/15164682

#SPJ4

You might be interested in
A circuit has a current of 3.6 A and a resistance of 5.0 Ω. What is the voltage applied to the circuit?
Inessa [10]

The key formula ===> Voltage = (current) x (resistance)

Plug in the numbers given ===> Voltage = (3.6 A) x (5.0 ohms)

Dooda multiplication ===> Voltage = 18 volts

7 0
3 years ago
Read 2 more answers
30 Pts! Answer fast please!<br> mass= 1 kg KE= 18 Joules <br> What is the velocity?
makvit [3.9K]
Its 21!! sorry i was late! :)
5 0
3 years ago
? Question
Harrizon [31]

No Solution:

4x+10y = 40

2x + 5y = 40

2x - 8y=17

x - 4y = 7

One Solution:

2y - X= 12

2y - 2x =10

x + 10y =50

2x + 10y =90

Infinitely Many Solutions:

x + 2y = 1

3x + 6y= 3

2y - 3x = 5

2/5y -3/5x =1

Explanation: You only had 11 equations listed. But I believe these are the ones you want. I took the test and got them right. Hope it helps

3 0
3 years ago
a 91.5 kg football player running east at 3.73 m/s tackles a 63.5 kg player running east at 3.09 m/s. what is their velocity aft
Lesechka [4]

The final velocity is 3.47 m/s east

Explanation:

We can solve this problem by using the law of conservation of momentum. In fact, the total momentum of the two players before and after the collision must be conserved:

p_i = p_f\\m_1 u_1 + m_2 u_2 = (m_1+m_2)v

where:

m_1 = 91.5 kg is the mass of the first player

u_1 = 3.73 m/s is the initial velocity of the first player (we take east as positive direction)

m_2 = 63.5 kg is the mass of the second player

u_2 = 3.09 m/s is the initial velocity of the second player

v is their final combined velocity after the collision

Re-arranging the equation and substituting the values, we find:

v = \frac{m_1 u_1+m_2 u_2}{m_1+m_2}=\frac{(91.5)(3.73)+(63.5)(3.09)}{91.5+63.5}=3.47 m/s

So, their velocity afterwards is 3.47 m/s east.

Learn more about momentum:

brainly.com/question/7973509  

brainly.com/question/6573742  

brainly.com/question/2370982  

brainly.com/question/9484203  

#LearnwithBrainly

6 0
3 years ago
How much work is needed to stretch this spring a distance of 5. 0 cm , starting with it unstretched?
densk [106]

The work done by the unstretched spring is 5 J.

<h3>What is the Hooke's law?</h3>

Hooke's law states that the extension of a given material is directly proportional to the force applied as log as the elastic limit is not exceeded. Thus we have to know that; F = Ke

F = force applied

K = force constant

e = extension

Using the graph;

K = F/e

F = 200N

e = 5 cm or 5 * 10^-2 m

K = 200N/ 5 * 10^-2 m

K = 4000 N/m

Now;

Work = 1/2Ke^2

Work = 0.5 *  4000 N/m * (5 * 10^-2 m)^2

Work = 5 J

Learn more about Hooke's law:brainly.com/question/13348278

#SPJ1

6 0
2 years ago
Other questions:
  • To be affective, exercise must reach at least Of your maximum ability
    9·1 answer
  • A rectangular metal bar has length of 20cm, width of 5cm. Mass of the block is 2kg and its density is 5000kg/m3. Find the height
    13·1 answer
  • The rate at which an object moves is the object's __________.
    5·2 answers
  • Can something change states of matter how do you know
    5·1 answer
  • The SI (metric)unit of current
    11·1 answer
  • Two point charges, q1 -25 µc and q2 +50 µc are separated by a distance of d = 12 cm. the electric field at the point p is zero.
    8·1 answer
  • A 3.0-cm-diameter tube is held upright and filled to the top with mercury. The mercury pressure at the bottom of the tube − the
    15·1 answer
  • Please help ill give brainliest.
    10·2 answers
  • Which object will sink in freshwater, which has a density of 1.0 g/cm3?
    14·2 answers
  • In physics the word medium means
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!