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
marysya [2.9K]
3 years ago
14

Find the density, in g/cm3, of a metal cube with a mass of 50.3 g and an edge length (l) of 2.65 cm. the volume (v) of a cube is

v=l3
Physics
1 answer:
tamaranim1 [39]3 years ago
7 0
<span>Density is a physical property which describes the mass of a substance per unit of volume of the substance. It is expressed as Density = m / V. We calculate as follows:

Density = m / V

V = volume of a cube = (edge length) ^3 = (2.65 cm) ^3 = 18.61 cm^3

Density = 50.3 g / 18.61 cm^3 = 2.70 g / cm^3</span>
You might be interested in
Assume the equation x 5 At3 1 Bt describes the motion of a particular object, with x having the dimension of length and t having
igomit [66]

Answer:

(a) A = m/s^3, B = m/s.

(b) dx/dt = m/s.

Explanation:

(a)

x = At^3 + Bt\\m = As^3 + Bs\\m = (\frac{m}{s^3})s^3 + (\frac{m}{s})s

Therefore, the dimension of A is m/s^3, and of B is m/s in order to satisfy the above equation.

(b) \frac{dx}{dt} = 3At^2 + B = 3(\frac{m}{s^3})s^2 + \frac{m}{s} = m/s

This makes sense, because the position function has a unit of 'm'. The derivative of the position function is velocity, and its unit is m/s.

6 0
3 years ago
Every day a certain amount of water evaporates from Earth’s oceans, lakes, and land surface and forms water vapor and clouds in
pochemuha

Answer:

0.0000000010 joules

Explanation:

Amount : 1540.3 nanojoules (nJ)

Equals : 0.0 joules (J)

8 0
3 years ago
At which point is the kinetic energy the greatest?
mr_godi [17]

Answer:

I don't know

Explanation:

I think it's at the highest, learned this in seventh grade

6 0
3 years ago
Read 2 more answers
2. A 5 year old child pushes with a force of 5 N to get a sumo wrestler to move, but the
Svetllana [295]

formula= W=f*d

w=work done

f=force

d=distance

w=f*d

w= 5n*0(does not budge)means does not move so distance is zero

w=5J

The work done by the children on the sumo wrestler is 5J

6 0
3 years ago
A small sphere is hung by a string from the ceiling of a van. When the van is stationary, the sphere hangs vertically. However,
olganol [36]

Answer with Explanation:

We are given that

String makes an angle w.r.t  vertical=\theta=

a.We have to derive an expression for the magnitude of the acceleration of the van in terms of the angle \theta and magnitude g of the acceleration due to gravity.

According to newton's second law

T sin\theta=ma

Tcos\theta=mg

\frac{Tsin\theta}{Tcos\theta}=\frac{ma}{mg}

tan\theta=\frac{a}{g}

a=gtan\theta

b.\theta=10^{\circ}

g=9.8 m/s^2

a=9.8\times tan10^{\circ}=1.73 m/s^2

c.Velocity=Constant

We have to find the angle \theta

a=0

0=9.8tan\theta

tan\theta=0

tan\theta=tan0

\theta=0^{\circ}

3 0
3 years ago
Other questions:
  • This is what occurs when matter transitions between solid, liquid and gas.
    9·2 answers
  • Based on the information in the graph which isotope is the most stable and would therefore not release energy by either fusion o
    9·1 answer
  • Einstein and lorentz, being avid tennis players, play a fast-paced game on a court where they stand 19.0 m from each other. bein
    7·1 answer
  • How much kinetic energy does a proton gain if it is accelerated, with no friction, through a potential difference of 1.00 V? The
    15·1 answer
  • One method of determining the location of the center of gravity of a person is to weigh the person as he/she lies on a board of
    7·1 answer
  • A hydrogen line in a star's spectrum
    9·1 answer
  • Which of the following does not illustrate a complete circuit?
    6·1 answer
  • A balloon-powered car rolls across the floor at a speed of 0.711 m/s. How long does it take to cover 8.25 m?
    15·1 answer
  • How long does it take a 5kW shower to use 25000J of energy?
    7·1 answer
  • What is the advantage of constantly performing endurance training such as Brisk walking or jogging, Yard work, Dancing, Swimming
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!