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
ycow [4]
3 years ago
6

Why can concave mirror is used in cosmetic mirror​

Physics
1 answer:
tatuchka [14]3 years ago
4 0

Answer:

"When face is placed between the concave mirror and its focus, it produces a magnified image. This enlarged image of face is helpful in makeup as even pores of skin are clearly visible."

You might be interested in
A car experiences a centripetal acceleration of 4.4 m/s ^2 as ur rounds a corner with a speed of 15 m/s. What is the radius of t
damaskus [11]
The calculation of the centripetal acceleration of an object following a circular path is based on the equation,

                  a = v² / r

where a is the acceleration, v is the velocity, and r is the radius.

Substituting the known values from the given above,

             4.4 m/s² = (15 m/s)² / r

The value of r from the equation is 51.14 m.

Answer: 51.14 m
3 0
3 years ago
Very easy physics maths about current and other stuffs only one question please help me
Reil [10]

Answer:

The total voltage of the circuit is 18 volts.

Explanation:

We have, three identical resistors of resistance 3 ohms are connected in series in a circuit.

For a series combination, the equivalent resistance is given by the sum of individual resistances i.e.

R_{eq}=R_1+R_2+R_3\\\\R_{eq}=3+3+3\\\\R_{eq}=9\ \Omega

Let V is the voltage of the battery if the current in the circuit is 2 A. So,

V=IR

V=2\times 9\\\\V=18\ V

So, the total voltage of the circuit is 18 volts.

7 0
2 years ago
What is the acceleration of a Ford Mustang GT that can go from 0.00 to 27.8<br> m/s in 5.15 seconds?
bixtya [17]
Finding acceleration= final speed-initial speed/time taken (or A=V-U\T)

Finial speed= 27.8s
Initial speed= 0s
Time taken= 5.15

So..

27.8-0/5.15= 5.40m/s (rounded to two decimal places)
4 0
2 years ago
A solenoid having N turns and carrying a current of 2.000 A has a length of 34 00 cm. If the magnitude of the magnetic field gen
umka21 [38]

Answer:

B) 1218

Explanation:

N = Total number of turns in the solenoid

L = length of the solenoid = 34.00 cm = 0.34 m

B = magnetic field at the center of the solenoid = 9 mT = 9 x 10⁻³ T

i = current carried by the solenoid = 2.000 A

Magnetic field at the center of the solenoid is given as

B = \frac{\mu _{o}N i}{L}

9\times 10^{-3} = \frac{(4\pi\times 10^{-7} )N (2)}{0.34}

N = 1218

3 0
3 years ago
Read 2 more answers
BRAINLIEST WILL BE MARKED FOR THE FIRST ANSWER
slamgirl [31]

Answer:

The weight of the body in the new planet is 100 newtons.

Explanation:

From Newton's Law of Gravitation we find that gravitational force is directly proportional to mass of the planet and inversely proportional to the square of its radius. From this fact we can build the following relationship:

\frac{F_{1}\cdot R_{1}^{2}}{M_{1}} = \frac{F_{2}\cdot R_{2}^{2}}{M_{2}} (1)

Where:

F_{1}, F_{2} - Gravitational force, measured in newtons.

M_{1}, M_{2} - Mass of planet, measured in kilograms.

R_{1}, R_{2} - Radius of the planet, measured in meters.

If we know that F_{1} = 800\,N, \frac{M_{2}}{M_{1}} = \frac{1}{2} and \frac{R_{2}}{R_{1}} = 2, then the expected gravitational force in the new planet is:

F_{2} = F_{1}\cdot \left(\frac{M_{2}}{M_{1}} \right)\cdot \left(\frac{R_{1}} {R_{2}}\right)^{2}

F_{2} = (800\,N)\cdot \left(\frac{1}{2} \right)\cdot \left(\frac{1}{2}\right)^{2}

F_{2} = 100\,N

The weight of the body in the new planet is 100 newtons.

4 0
3 years ago
Other questions:
  • If there is a new moon every month, where does the old one go?
    8·2 answers
  • Can someone tell me what my displacement is?
    14·1 answer
  • A positive charge on an object is caused by:
    15·2 answers
  • Under most conditions, except ________ change, the resistance of an object is a constant and does not depend on the amount of th
    11·1 answer
  • What is electric power?
    14·1 answer
  • What is the complete back-and-forth motion of an object called?
    15·1 answer
  • A 27.4 kg dog is running northward at 2.19 m/s , while a 7.19 kg cat is running eastward at 2.78 m/s . Their 75.7 kg owner has t
    10·1 answer
  • Write a program that calculates the average of n integers. the program should prompt the user to enter the value for n and then
    9·1 answer
  • A force of 9.6 N acts on a 5.1 kg object for 8.2 s. Calculate the object's change in velocity (in m/s).​
    8·1 answer
  • What is a meteorite?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!