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
White raven [17]
4 years ago
13

use mass and volume dada to calculate the density of lead mass of lead=567.5g volume of lead=50.0cm cubes what is the density?

Physics
1 answer:
olga55 [171]4 years ago
3 0

Answer:

The density of the lead, ρ = 11.35 g /cm³

Explanation:

Given,

The mass of the lead, m = 567.5 g

The volume of the lead, v = 50 cm

The density is given by the relation

                            ρ = m / v

Substituting the given values in the above equation,

                             ρ = 567.5 g / 50 cm

                                = 11.35 g /cm³

Hence, the density of the lead, ρ = 11.35 g /cm³

You might be interested in
A cart of mass 20 kg, initially at rest, is pushed with a net force of 40 N on a flat surface. If the cart is pushed 5 m, what i
bixtya [17]
Using the theorem of kinetic energy
1/2mVf² - 1/2mVi²= WF + Wp,     Wp=0
WF = F. AB, AB=5m and F= 40N, m=20kg
so the final kinetic  is KEf= 1/2mVf² = WF =<span>F. AB= 40*5=200J
</span>
the final velocity is 1/2mVf² <span>=200, implies   Vf= sqrt(20)=2sqrt(5)m/s</span>

3 0
3 years ago
Two particles with charges of 5.00 μ C and -3.00 μC are placed 0.250 m apart. Where can a third charge be placed so that the net
MAXImum [283]

Answer:

0.86 m

Explanation:

q₁ = magnitude of positive charge = 5 x 10⁻⁶ C

q₂ = magnitude of negative charge = 3 x 10⁻⁶ C

r = distance between the two charges = 0.250 m

d = distance of the location of third charge from negative charge

q = magnitude of charge on third charge

Using equilibrium of electric force on third charge

\frac{kq_{2}q}{d^{2}} = \frac{kq_{1}q}{(r+d)^{2}}

\frac{q_{2}}{d^{2}} = \frac{q_{1}}{(r+d)^{2}}

\frac{(5\times 10^{-6})}{(0.250+d)^{2}} = \frac{(3\times 10^{-6})}{(d^{2}}

d = 0.86 m

4 0
3 years ago
In order for work to be done, what three things are necessary?
pentagon [3]
<span>D. unbalanced force, motion, and movement in the same direction of the applied force

Hope this helps!</span>
5 0
4 years ago
A 1kg skateboard sits at the top of a ramp 20 fr off the ground . How much potential energy does it have ?
Finger [1]

Answer:

196J

Explanation:

Given parameters:

Mass of skateboard  = 1kg

Height off the ground  = 20m

Unknown:

Potential energy  = ?

Solution:

The potential energy is the energy due to the position of a body above the ground.

It is mathematically expressed as:

      Potential energy  = mass x acceleration due gravity x height

     Potential energy  = 1 x 9.8 x 20  = 196J

8 0
3 years ago
Derive a general formula for projectile motion with the object launched at an angle
vagabundo [1.1K]

Answer:

  y = x tan θ - (g / 2v₀² cos² θ) x²

Explanation:

An equation is called a general formula that relates the position on the x-axis and the height on the body's axis.

Let's write the position on each axis

X axis. No acceleration

         x = v₀ₓ t

Y Axis.  There is the acceleration of gravity

        y = v_{oy} t - ½ g t²

Let's clear the time in the first equation and substitute in the second

       y = v₀ sin θ  (x / v₀ₓ) - ½ g (x / v₀ₓ)²

       y = v₀ sin θ / v₀ cos θ x - ½ g x² / v₀² cos² θ

       y = x tan θ - (g / 2v₀² cos² θ) x²

This is the trajectory equation in projectile launching

6 0
3 years ago
Other questions:
  • A certain wave has a wavelength of 35 meters and a frequency of 4.0hz. What is the speed of the wave
    14·1 answer
  • Florida has many springs where people can swim and explore. These springs
    10·1 answer
  • Most of the elements (85%) in the periodic table are.
    9·2 answers
  • A chemical formula uses the chemical symbol and dots representing electrons.
    8·2 answers
  • You are trying to overhear a juicy conversation, but from your distance of 20.0 m , it sounds like only an average whisper of 30
    15·1 answer
  • Where do the magnetic fields of atoms line up
    13·2 answers
  • After exercise, your heart rate isand you need to slowly bring it to normal.
    13·2 answers
  • What four things<br> are required for photosynthesis?
    11·1 answer
  • When an object is balanced about a pivot, the total clockwise moment must be equal to the total __________ __________. What two
    6·1 answer
  • In an electrical storm, an electric field builds up in the space between a cloud and the ground. Lightning occurs when the magni
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!