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
Tom [10]
3 years ago
8

Plzzz give me the answer of question no 40 very fast ots soo urgent

Physics
1 answer:
mojhsa [17]3 years ago
7 0
R because A-B has 7R but C-d only has 6r so you need to add another r
You might be interested in
In which direction would the circle go if it was in between a positive and negative charge
evablogger [386]
It would go to the positive charge im like 99% sure of that
7 0
4 years ago
A block of aluminum with a volume of 10 cm3 is placed in a beaker of water filled to the brim. Water overflows. The same is done
mihalych1998 [28]

Answer:

a) Both blocks displace the same amount of water.

Explanation:

Specific gravity (S.G.) is a quantity that tells how much and object is submerged on water and is given by:

S.G=\frac{\rho_{block}}{\rho_{fluid}}

with ρ the densities

Density of water is 997 \frac{kg}{m^{3}} and density of aluminum is 2712 \frac{kg}{m^{3}}

So:

S.G=\frac{2712}{997}=2.72

A S.G. value bigger than one means the object is totally submerged so the water displaced is equal to the volume of the cube.

For the lead (density = 11340\frac{kg}{m^{3}}) block we're going to calculate specific gravity in this case:

S.G=\frac{11340}{997}=11.37

Again S.G gravity is bigger than 1, so the lead block is totally submerged too, that implies the volume of water displaced is the volume of the block, that is the same volume as the aluminum block, so a is the correct one.

7 0
3 years ago
When a certain metal is illuminated with light of frequency 3.0×1015 hz, a stopping potential of 7.27 v is required to stop the
slega [8]
Hf = Ф + Kmax

Where,
h = 4.14*10^-15 eV.s
f = 3.0*10^15 Hz
Kmax = 7.27 eV
Ф = ?

Therefore,
Ф= hf-Kmax = 4.14*10^-5*3.0*10^15 - 7.27 = 5.15 eV
7 0
3 years ago
At what age can a person begin taking actions that will reduce the risk of dementia
Snowcat [4.5K]

Answer:

Any time bud, keep good health

Balance your blood sugar with a whole-foods, low-glycemic diet. ...

Eat healthy fats that make your brain happy. ...

Exercise daily. ...

Supplement wisely. ...

Check your thyroid and sex hormone levels. etc

Explanation:

5 0
3 years ago
Which sequence does<br> the energy transformation in an automobile engine.
Vera_Pavlovna [14]

Answer:

Mechanical

Explanation:

7 0
3 years ago
Other questions:
  • Which organisms are the oldest to most recent, based on scientific views?
    9·1 answer
  • A machine can never be 100% efficient because some work is always lost due to .
    5·2 answers
  • In the gene TATTCATTGTTA—TGATTT—ATTCG, CATTGTTA encodes for pepsin, a digestive enzyme. The rest of the sequence doesn’t code fo
    13·1 answer
  • A coin of mass m rests on a turntable a distance r from the axis of rotation. The turntable rotates with a frequency of f. What
    9·1 answer
  • A large truck is moving 22.0 m/s. If it’s momentum is 125,000 kg • m/s, what is the trucks mass
    10·1 answer
  • The resistivity of gold is at room temperature. A gold wire that is 0.9 mm in diameter and 14 cm long carries a current of 940 m
    15·2 answers
  • What happens to the liquid in a thermometer when it is moved from cold water to boiling water?
    5·2 answers
  • Hii! help asap. i’ll give brainliest thanks!
    5·1 answer
  • Action and reacion forces are described by which of Newton's laws of motion?
    8·2 answers
  • Soap bubbles can display impressive colors, which are the result of the enhanced reflection of light of particular wavelengths f
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!