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
Pie
2 years ago
8

A body, with a volume of 2 m3, weighs 40 kN. Determine its weight when

Physics
1 answer:
lana66690 [7]2 years ago
3 0

Answer:

8.8 kN

Explanation:

V = 2 m³, W = 40 kN, SG = 1.59

Bouyant force N = 1.59 * 1000 kg/m³ * 9.81 N/kg * 2 m³ = 31.2 kN

So the weight becomes 40 - 31.2 = 8.8 kN

You might be interested in
Objects that are denser than water will sink in water. Question 1 options: True False
den301095 [7]
<h3>Answer: True</h3>

For example, a very dense metal will sink to the bottom while something like wood will float on the surface. The wood is less dense compared to the water, which is why it floats. Density is the measure of how much stuff you can pack in a certain volume. The higher the density, the more stuff per volume. Think of it like packing a suitcase. If there's barely anything in there, then we can say its density is low. The more stuff crammed in the suitcase will increase the density (and therefore the weight), while keeping the volume the same.

4 0
2 years ago
Read 2 more answers
A particle has a charge of -4.25 nC.
SpyIntel [72]

Answer:

-611.32 N/C

0.43723 m

Explanation:

k = Coulomb constant = 8.99\times 10^{9}\ Nm^2/C^2

q = Charge = -4.25 nC

r = Distance from particle = 0.25 m

Electric field is given by

E=\dfrac{kq}{r^2}\\\Rightarrow E=\dfrac{8.99\times 10^9\times -4.25\times 10^{-9}}{0.25^2}\\\Rightarrow E=-611.32\ N/C

The magnitude is 611.32 N/C

The electric field will point straight down as the sign is negative towards the particle.

E=\dfrac{kq}{r^2}\\\Rightarrow r=\sqrt{\dfrac{kq}{E}}\\\Rightarrow r=\sqrt{\dfrac{8.99\times 10^9\times 4.25\times 10^{-9}}{13}}\\\Rightarrow r=1.71436\ m

The distance from the electric field is 1.71436 m

4 0
3 years ago
Read 2 more answers
Which situation describes a system with decreasing gravitational potential energy?
lord [1]

Answer: a boy jumping down

6 0
3 years ago
Write any two uses of simple machines.
Nana76 [90]
Simple machines could be used to reduce effort or extend the ability of people to perform tasks beyond their normal capabilities.
Examples include pulley, lever, and incline plane
4 0
3 years ago
The city bus traveled 30 miles in 30 minutes. What was its speed in mph?
jonny [76]
The answer will be B.60mph
4 0
3 years ago
Read 2 more answers
Other questions:
  • The general trend for igneous crystal growth is that crystals are ____ when the molten rock is __
    14·1 answer
  • (I will give brainliest whoever helps me !!)
    12·1 answer
  • What will happen to an object's wavelength as the object moves towards you?
    12·2 answers
  • A coefficient in a chemical formula shows the number of electrons?<br><br> True<br> False
    15·2 answers
  • The amount of a good or service a
    10·1 answer
  • Is muddy water a substance?
    7·2 answers
  • The total charge a battery can supply is rated in mA⋅hmA⋅h, the product of the current (in mA) and the time (in h) that the batt
    9·1 answer
  • What are action-reaction force pairs?
    6·2 answers
  • Why do our eyes see the color red when we look at a tomato?
    7·2 answers
  • A scientist runs an electric current along a wire. A magnetic compass is placed near the wire. The scientist observes that whene
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!