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
Anna [14]
3 years ago
15

A brick in the shape of a cube with sides 10 cm has a density of 2500 kg/m^3. What is its weight? a.) 250 N

Physics
1 answer:
Arisa [49]3 years ago
8 0

Answer:

c.) 25 N

Explanation:

 We find the volume of the brick, knowing that the volume of a cube is given by the formula:

l=0,1 metros \\V=l^{3}\\V=(0,1\: \: m)^{3}=0,001\: \: m^{3}

being l the side of the cube, which in this case is 10 cm or 0,1 m. Now we find the mass of the object, knowing the density and the Volume of the cube:

m=V*d\\m=(0,001 \:\:m^{3})(2500 \: \: \frac{Kg}{m^{3}})=2,5 \:\: Kg

We find the weight by multiplying the mass of the object with the gravity constant.

W=m*g=(2.5 \:Kg)*(9,81 \:m/s^{2} )=24,5 N\approx25\: N

You might be interested in
When a force causes an object to move in the direction of the force blank occurs
serg [7]
Its magnetic..........ig

7 0
3 years ago
A weight lifter lifts a dumbbell a certain height in 2.0 s, while a competitor does the same workin 1.0 s. Compared to the power
Aloiza [94]

Answer:

a. one-half as great

Explanation:

The power developed by the first lifter is one-half as great as that of the second person.

  Power is defined as the rate at which work is done;

          Power  = \frac{workdone}{time}

Since the two lifters do the same work at different time, let us estimate their power;

       P₁ = \frac{workdone}{2}                     P₂ = \frac{workdone }{1}

   We see that for P₁, power is half of the work done whereas in P₂ power is the same as the work done.

Therefore,

           The power of the first weight lifter is one-half the second lifter.

4 0
3 years ago
A box has a mass of 150kg and the surface area of the bottom of the box is :
charle [14.2K]

Answer:

Pressure = 100 Pascals

Explanation:

pressure =  \frac{force}{area}  \\  =  \frac{150 \times 10}{15}  \\  =  \frac{1500}{15}  \\  = 100 pa

3 0
3 years ago
Winner of five swimming gold medals at the 1988 olympics
Fed [463]
Matt Biondi..?
(I don’t know if it’s right, sorry if it is wrong)
:)
6 0
3 years ago
What is in the universe
svp [43]
Everything is in the universe.
That's what the word means.
5 0
3 years ago
Read 2 more answers
Other questions:
  • A moving cyclist sees traffic up ahead and begins slowing down with constant acceleration. After slowing down for 0.5\,\text{s}0
    14·1 answer
  • In Rutherford's experiment, which of the following proved that the
    6·1 answer
  • During which time period was the acceleration of the car the greatest?
    5·2 answers
  • The illustration represents one form of _________________, the process that enables all stars, including our sun, to continuousl
    12·2 answers
  • A potter’s wheel of radius 17 cm starts from rest and rotates with constant angular acceleration until at the end of 32 s it is
    5·1 answer
  • When electrons move closer to a more electronegative atom, what happens?
    12·1 answer
  • Pls help will mark brain
    10·1 answer
  • If you use the same force to push a motorcycle as you would push a bike which one would have more acceleration and why explain u
    12·2 answers
  • Uncertainty in 21.0 C is<br> A. 0.1<br> B. 0.2<br> C. 0.05
    7·1 answer
  • 1 5kg cat is lifted 2 m into the air.how much gpe does it gain?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!