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serious [3.7K]
4 years ago
15

For a closer look when shaving:

Physics
2 answers:
4vir4ik [10]4 years ago
8 0

Answer:

A concave mirror was used.

Explanation:

Snezhnost [94]4 years ago
5 0

Plane mirror always forms an image of same size as that of object

Concave mirror can form a virtual image that is greater than the size of object

convex mirror will always form a virtual image that is smaller in size

So overall for closer look during shaving in mirror we need a mirror that will form virtual image of greater size

So here correct answer would be

<em>A concave mirror is used.</em>

for this purpose the person should be closer to mirror as we know that image will be virtual and magnified only when the object is between focus and pole of the mirror

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A 5 cm spring is suspended with a mass of 1 g attached to it which extends the spring by 3.2 cm. The same spring is placed on a
notsponge [240]

First, we need to find the spring constant

Force of gravity = force of tension from spring

mg = kx

(1x10^-3)(9.8) = k (3.2x10^-2)

k = .30625

Now we can look at the other situation

Since the spring was moved 0.01 meters, we can find the force

F = kx = (.01)(.30625) = .0030625 N

Now we can set the electric force equal to the force of the beads

kq^2/r^2 = .0030625 N

q = 292 microCoulombs

5 0
1 year ago
How might scientists study something that they cannot observe directly?
yarga [219]

Answer:

The sun

Explanation:

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8 0
3 years ago
If Ms. Ramirez drops a watermelon from the top of the second-floor fire escape outside her room, and it takes 1.5 seconds to hit
mamaluj [8]

The velocity of the watermelon as it hits the ground is 14.715 m/s.

Given the data in the question;

Since the Watermelon was dropped from rest,

  • Initial velocity of the Watermelon;u = 0m/s
  • Time taken for the Watermelon to hit the ground; t = 1.5s
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Now, we determine the velocity of the watermelon as it hits the ground which is the final velocity.

From the First Equation of Motion:

v = u + at

Now, under gravity, acceleration ''a" will Acceleration due to gravity;g = 9.81m/s^2, "v" is the final velocity, "u" is the initial velocity and "t" is the time taken.

So, we substitute our values into the equation

v = 0m/s\ +\ ( 9.81m/s^2\ *  1.5s )\\\\v = ( 9.81m/s^2\ *  1.5s )\\\\v = 14.715 m/s

Therefore, the velocity of the watermelon as it hits the ground is 14.715 m/s

Learn more; brainly.com/question/13275688

7 0
3 years ago
A 2 000-kg car is slowed down uniformly from 20.0 m/s to 5.00 m/s in 4.00 s. (a) What average force acted on the car during that
slava [35]

Answer:

the answer is c

Explanation:

3 0
3 years ago
Someone help in physics half life
saveliy_v [14]
To get the number of unstable atoms:
Column 3:  take 900 - 90 = 810  The numbers from column 2

To get the Number of decayed atoms:
take the 810 * 10% = 810 * .1 = 81

Follow the pattern for the rest of the table.
4 0
4 years ago
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