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
ludmilkaskok [199]
3 years ago
12

A rectangular block has the density of 350g/cm3 the dimensions are 3.5 6.cm 2.5

Physics
1 answer:
LekaFEV [45]3 years ago
7 0

Answer:

18375g

Explanation:

\boxed{density =  \frac{mass}{volume} }

∴ mass = density \times volume

Let's find the volume of the rectangular block.

Volume

= length ×breadth ×height

= 3.5 ×6 ×2.5

= 52.5cm³

Mass of the block

= 350(52.5)

= 18375g

You might be interested in
Give an example of mass making a difference in the amount of gravitational energy. Tell how you know the gravitational energy is
Andreas93 [3]

Answer:

The Gravitational potential energy at large distances is directly proportional to the masses and inversely proportional to the distance between them. The gravitational potential energy increases as r increases.

Examples of Gravitational Energy

A raised weight.

Water that is behind a dam.

A car that is parked at the top of a hill.

A yoyo before it is released.

5 0
2 years ago
The age of a piece of wood from an archeological site is to be determined using the Carbon-14 method. The activity of the sample
Bond [772]

Answer:

4276.98 years

Explanation:

t = age of the sample in numbers of years

T = half life of the carbon-14 isotope = 5730 yrs

λ = decay constant of carbon-14

decay constant is given as

\lambda =\frac{0.693}{T}

\lambda =\frac{0.693}{5730}

\lambda = 0.000121

A₀ = activity of Carbon-14 in living plants

A  = activity of Carbon-14 after time "t" = (0.596) A₀

Using the equation

A = A_{o} e^{-\lambda t}

(0.596) A₀  = A_{o} e^{-0.000121 t}

0.596 = e^{-0.000121 t}

t = 4276.98 years

4 0
3 years ago
A 10kg block is attached to a light cord that is wrapped around the pulley of an electric motor. What is the power output of the
Scorpion4ik [409]

Answer:

Option B is correct.

Power = 360 W

Explanation:

Power = Work done/time

Work done = Force × distance moved through by the force

Power = Force × (distance moved through by the force/time)

(Distance moved through by the force/time) = velocity = 3 m/s

Power = Force × velocity

Force = ma

But the acceleration in this case is this acceleration + acceleration due to gravity because the force has to be overcoming the force of gravity to now move the object upward at 2 m/s²

a = (2 + g) (assume acceleration due to gravity = 10 m/s²

a = 2 + 10 = 12 m/s²

F = ma = 10 × 12 = 120 N

Power = F × v = 120 × 3 = 360 W

4 0
3 years ago
15. A pattern of weather and<br> climate over three months is called a
Anna35 [415]

Answer:

Explanation:

weather pattern

6 0
2 years ago
A cloth hat and large rock are dropped at at the same time on the moon
Schach [20]

Answer:

What’s the question??

Explanation:

8 0
3 years ago
Other questions:
  • What is the purpose of the wire coil in an electromagnet?
    13·1 answer
  • When you are driving on a rural road, if your right wheels run off the pavement, you should hold the steering wheel firmly and
    12·1 answer
  • When I bump the table, the coffee in my cup spilled out. Newton's _____ law explains this reaction.
    6·2 answers
  • Can someone help me?!!
    8·1 answer
  • A vector has what and direction
    11·2 answers
  • suppose you needed to build a raft to cross a fast-moving river. Describe the physical and chemical properties of the raft that
    5·1 answer
  • Explain and derive the equation for capillary action in the phenomenon of surface tension​
    11·1 answer
  • A car traveling at 50 m/s comes to a stop in 5 seconds. What is the<br> acceleration of this car?
    15·1 answer
  • What is descriminant in math​
    8·1 answer
  • When air gets hot, it rises and forms…
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!