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
Leno4ka [110]
3 years ago
5

A uniform cube with mass 0.700 kg and volume 0.0270 m3 is sitting on the floor. A uniform sphere with radius 0.400 m and mass 0.

800 kg sits on top of the cube.
1) How far is the center of mass of the two-object system above the floor? Express your answer in hcm unit.
Physics
1 answer:
Sav [38]3 years ago
6 0

Answer:

  44 1/3 cm

Explanation:

The cube has an edge length of ∛0.027 m = 0.3 m, so a center of mass (CoM) 15 cm above the floor.

The sphere's center of mass is 40 cm above the top of the cube, so is 70 cm above the floor. The weighted average of the CoM locations is ...

  ((15 cm)(0.700 kg) +(70 cm)(0.800 kg))/(0.700 kg +0.800 kg)

  = (10.5 kg·cm +56 kg·cm)/(1.500 kg) = 44.333... cm

The center of mass of the two-object system is 44 1/3 cm above the floor.

_____

<em>Comment on the units</em>

We're not familiar with "hcm" as a unit. We presume that you can convert the given answer to the units you desire.

You might be interested in
Use the definition of scalar product, a with arrow · b with arrow = ab cos θ, and the fact that a with arrow · b with arrow = ax
Zolol [24]

Answer:

5+5=10

4+6=10

angle between is 45

3 0
2 years ago
Jan first uses a Michelson interferometer with the 606 nmnm light from a krypton-86 lamp. He displaces the movable mirror away f
gogolik [260]

Answer:

a) d₁ = 247.8 μm

d₂ = 205.3 μm

b) d₂ = 20.53 x 10⁻⁵ m = 205.3 μm

Explanation:

a)

The formula for Michelson Interferometer is derived to be:

d = mλ/2

where,

d = distance moved

m = no. of fringes

λ = wavelength of light

For JAN, we have following data

d = d₁

m = 818

λ = 606 nm = 606 x 10⁻⁹ m

Therefore,

d₁ = (818)(606 x 10⁻⁹ m)/2

<u>d₁ = 24.78 x 10⁻⁵ m = 247.8 μm</u>

For LINDA, we have following data

d = d₂

m = 818

λ = 502 nm = 502 x 10⁻⁹ m

Therefore,

d₂ = (818)(502 x 10⁻⁹ m)/2

<u>d₂ = 20.53 x 10⁻⁵ m = 205.3 μm</u>

b)

The resultant displacement can be found out from the difference between both displacement. And the direction of resultant displacement will be the same as the direction of greater displacement. Therefore,

Resultant Displacement = Δd = d₁ - d₂

Δd = 247.8 μm - 205.3 μm

<u>Δd = 42.5 μm (in the direction of JAN)</u>

4 0
3 years ago
A wheelbarrow full of bricks is lifted to the top of a wall. If the mass of the loaded wheelbarrow is 3000.0 g and the height of
Rina8888 [55]

Answer:

the Gravitational potential energy is 13.23 J

Explanation:

The computation of the GPE is shown below:

GPE stands for Gravitational potential energy

The following formula should be used for the same

= mass × gravity × height

= 3000 g × 9.8m/sec^2 × 0.45 m

= 13.23 J

Hence, the Gravitational potential energy is 13.23 J

We simply applied the above formula so that we can easily determine the GPE

6 0
2 years ago
Which process involves the removal of rock particles by wind,water,ice,or gravity ?
Leno4ka [110]
Erosion is the process in which you speak of.
4 0
3 years ago
A driver of a car enters a new 110 km/h speed zone on the highway. the driver immediately begins to accelerate and reaches 110 k
lbvjy [14]

The formula for calculating acceleration can be derived from:

v^2 = v0^2 + 2 a d

where a is acceleration, v is final velocity, v0 is initial velocity and d is distance = 0.5 km

 

Rewriting in terms of a:

a = (v^2 – v0^2) / 2 d

a = (110^2 – 80^2) / (2 * 0.5)

<span>a = 5,700 km/h^2 = 0.44 m/s^2</span>

4 0
3 years ago
Other questions:
  • The modern periodic table has______ groups. (Write your answer as a number.)
    9·2 answers
  • The mountains on the Moon were formed by what process?
    14·1 answer
  • The index of refraction of a clear plastic is listed as 1.89 in the book, but you measured the angle of incidence 63.5° and the
    13·1 answer
  • Friction provides the force needed for a car to travel around a flat, circular race track. What is the maximum speed at which a
    9·1 answer
  • What are some charactersitics of pressure waves
    12·1 answer
  • Plzz answer this question correctly
    10·1 answer
  • What are four drawbacks to using fossil fuels in Alberta thermal power stations?
    9·1 answer
  • If a 15 N box is lifted a distance of 3 m, how much work is done?
    9·2 answers
  • If the velocity of gas molecules is doubled the its kinetic energy will be
    15·1 answer
  • There are planets in the universe without a parent star. most all stars have planets. most stars are binary. true false
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!