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
aleksklad [387]
3 years ago
12

A rectangular wooden block measures 10.0cm x 4.00cm x 2.00cm. when the block is placed in water, it floats horizontally, with it

s bottom face 1.65cm below the surface. what is the density of the wood? show and explain your work.
Physics
1 answer:
bekas [8.4K]3 years ago
6 0

Answer:

The density of the wood is

ρ₂ = 1.21 g / cm³

Explanation:

The block measures

V₁ = 10.0 cm * 4.0 cm * 2.0 cm

V₁ = 80 cm³

Now the block measures under the water getting just the face below as 1.65 cm

V₂ = 10.0 cm * 4.0 cm * 1.65 cm

V₂ = 66 cm³

So to determine the density knowing the mass are the same as the weight

ρ₁ * V₁ = ρ₂ * V₂

Using the density of the water as a

ρ₁ = 1 g / cm ³

1 g / cm³ * 80 cm ³ = ρ₂ * 66 cm³

ρ₂ = 1.21 g / cm³

You might be interested in
A student measured the specific heat of water to be 4.29 J/g.Co. The
leonid [27]

Answer:

2.63 %.

Explanation:

Given that,

The calculated value of the specific heat of water is 4.29 J/g.C

Original value of  specific heat of water is 4.18 J/g.C.

We need to find the student's percent error. The percentage error in any quantity is given by :

P=\dfrac{|\text{original value-calculated value}|}{\text{original value}}\times 100\\\\P=\dfrac{4.29-4.18}{4.18}\times 100\\\\P=2.63\%

So, the student's percent error is 2.63 %.

7 0
3 years ago
Search about non-ohmic devices in 3 pages​
Tomtit [17]

Answer:

electronic diode,

Explanation:

Non-ohmic conductors are materials that do not obey ohm's law and they are electronic diode, transistors, tungsten, thermistors and vacuum tube etc.

7 0
3 years ago
In scientific notation, (6.2 x 10^4) x (3.3 x 10^2 ) equals ____________________.
castortr0y [4]
You will get 20460000 as your answer which is broken down into, 2.046 x 10^7 as your number has to be between 1-10.
5 0
3 years ago
Read 2 more answers
A 3.00 kg block moving 2.09 m/s
Talja [164]

Answer:11.64kgm/s

Explanation:

4 0
3 years ago
Distinguish between a converging lens and a diverging lens.
andriy [413]

Answer:A converging lens is thickest in the middle and causes parallel light rays to converge through the focal point on the opposite side of the lens. A diverging lens is thinner in the middle and causes parallel light rays to diverge away from the focal point on the same side of the lens.

Explanation:

5 0
3 years ago
Other questions:
  • Two positively charged particles are 0.03 m apart. The first particle has a
    6·2 answers
  • In a shot-put competition, a shot moving at 15m/s has 450J of mechanical kinetic energy. What is the mass of the shot? Please he
    7·1 answer
  • A guitar string has a linear density of 8.30 ✕ 10−4 kg/m and a length of 0.660 m. the tension in the string is 56.7 n. when the
    5·2 answers
  • G (where g=9.8 m/s2). If an object’s mass is m=10. kg, what is its weight?
    11·1 answer
  • Examine the nuclear reaction: Superscript 1 subscript 1 H plus superscript 1 subscript 0 n right arrow superscript 2 subscript 1
    12·2 answers
  • Plz help me with #4 it’s 15 points!!
    8·1 answer
  • What are some ways that light can be controlled and what does it do to the light
    15·1 answer
  • Does a cell ever reach equilibrium
    13·2 answers
  • In a certain region of space, the electric potential is V(x,y,z)=Axy−Bx^2+Cy, where A, B, and C are positive constants. (a) Calc
    7·1 answer
  • If your wave comes into contact with a different medium and is returned to the original medium it is known as:
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!