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
valkas [14]
3 years ago
14

Ill mark brainliest!!!

Physics
1 answer:
navik [9.2K]3 years ago
6 0

Answer: A

si, di, are expressed as negative and f is expressed as positive values.

Explanation:

When the object is located at a location in front of the focal point of a convex len, the image will always be located somewhere on the same side of the lens as the object. The image is located behind the object. In this case, the image will be an upright image and the image is enlarged

In this question, the relationship between the focal length, image distance di and object distance is

I/f = 1/di + 1/do that is

I/f - 1/di - 1/do = 0

The image size si is also negative since the image is a virtual image.

Therefore, si, di, are expressed as negative, f is expressed as positive values.

You might be interested in
A sprinter accelerates from rest to 10.0m/s in 1.35s.
ANEK [815]

Answer:

a) Acceleration = 7.41 m/s^2

b) Distance ran = 6.75 m

Explanation:

For Acceleration use the formula...

a = (v - u) ÷ t....where v=10 and u=0....and t=1.35

a = (10 - 0)÷ 1.35

;acceleration = 7.41m/s^2

For the distance moved in 1.35s

;use the...s = ut + 1/2at^2....where s is the distance moved

;s = (0)(1.35) + 0.5(7.41 × 1.35^2)

Distance moved = 6.75m

3 0
4 years ago
Read 2 more answers
You measure the power delivered by a battery to be 5.83 W when it is connected in series with two equal resistors. How much powe
BabaBlast [244]

Answer:

P = 23.32 W

Explanation:

In series  

equivalent Resistance

R(eq)=R+R=2R

In parallel equivalent resistance

R(eq) = R*R/(R+R) =R/2

since.

power

P=V² / R

in series

⇒V = √(P*R)

=√(5.83*2R )

=√(11.66R)

in parallel

P = V² / R(eq)

=(√(11.66R)²) / (R/2)

P=11.66 * R * 2/R

P = 23.32 W

6 0
3 years ago
How to TPWK according to you
Karo-lina-s [1.5K]

Answer:

TPWK is an acronym which stands for treat people with kindness. It encourages people to respect and love others in all situations.

Explanation:

Treat people with kindness (TPWK) is one of the major attitudes that must be imbibed by everyone. This would give room for more love and genuine kindness for others which would make the world a better place to live. Because people will live with the consciousness that others come first.

There are variuos ways and manner to treat people with kindness which can be simplified as having genuine love for others. When people are kind to one another, then life would be worth living.

6 0
3 years ago
Read 2 more answers
Pls i need help....
Natasha_Volkova [10]

Answer:

Evaporation happens when a liquid substance becomes a gas. When water is heated, it evaporates. The molecules move and vibrate so quickly that they escape into the atmosphere as molecules of water vapor. ... Heat from the sun, or solar energy, powers the evaporation process.

And due to the water being hot, it added to the evaporation

MARK MEH BRAINLIEST

Explanation:

3 0
3 years ago
Vector A has a magnitude of 8.0 m and points east, vector B has a magnitude of 6.0 m and points north and vector C has a magnitu
sineoko [7]

Answer:

The answer is E) 6.7m at an angle 63° north of east

Explanation:

We begin by writing out our given vectors A,B and C in their respective rectangular Cartesian coordinate form. which are given as A=8i, B=6j and C= -5j (negative because it points towards west which is towards the left which is taken as the negative direction).Now we simply add all three to obtain our final vector given by,

V=A+B+C\\V=8i + 6j - 5i\\V=3i + 6j

In the last step we just added the like components. Now we will have to calculate the magnitude and angle of V(with respect of the east direction), which is given by,

|V| = \sqrt{3^2 + 6^2} =6.7m\\\\\alpha =tan^{-1} (6/3)=tan^{-1} (2) = 63.4

the angle alpha is always calculated with respect to the horizontal positive axis, and since both components of the vector are positive the vector lies in the first quadrant. Hence the 63° angle north of east is justified. The term north of east means the angle formed in moving from east towards the north that is from the positive horizontal axis to the positive vertical axis.

8 0
4 years ago
Other questions:
  • Two curves on a highway have the same radii. However, one is unbanked and the other is banked at an angle θ. A car can safely tr
    9·1 answer
  • Questions E6 a& b and E7 a&b?
    11·1 answer
  • A truck has a mass of 3000 kg and a velocity<br> of 10 m/s. Calculate momentum!
    13·2 answers
  • Will mark as brainliest if correct!!!!!!!
    9·1 answer
  • Surface temperature of planet mars range from -89C to -31C Express this temperature rang in Kelvin.
    12·1 answer
  • A 0.20 kg mass is oscillating at a small angle from a light string with a period of 0.78 s.
    13·2 answers
  • calculate the resistance if a potential difference of 3v exists when a current of 2A flows through the conductor​
    12·1 answer
  • A tennis ball rolls horizontally to the left for 30 m at a constant speed. what is the velocity after 15 seconds? what is the sp
    8·2 answers
  • Fusion produces less radioactivity than fission.<br> True or false
    9·1 answer
  • Directions:
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!