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Artist 52 [7]
3 years ago
9

The ray diagram shows a vase that is placed beyond the center of curvature of a concave mirror. Which best describes how the ima

ge of the vase will appear ?
A.) It will be larger than the vase and upright.
B.) It will be smaller than vase and upright
C.) It will be larger than the vase and inverted
D.) It will be smaller than the vase and inverted

Physics
2 answers:
Law Incorporation [45]3 years ago
3 0
To get to know the characteristics of the image formed, you complete the ray diagram. 
When the object is place beyond C the image formed is usual smaller than the object. 
The image is also inverted. 
∴The best statement that describes the image is <span>D.) It will be smaller than the vase and inverted</span>
Harman [31]3 years ago
3 0
If you try to trace the lines going through the concave mirror, the top of the vase will be reflected smaller and inverted. 

D.) It will be smaller than the vase and inverted
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(7) A 2500 lbm car moving at 25 mi/hr is accelerated at a constant rate of 15 ft/s2 up to a speed of 50 mi/hr. What is the force
balandron [24]

Answer:

The  force is  F =  1164.6\  lbf

The time is   \Delta t =  2.44 \  s

Explanation:

From the question we are told that

  The  mass of the car is  m  =  2500 \ lbm

   The  initial velocity of the car is u  =  25 \ mi/hr

   The final  velocity of the car is  v  =  50 \  mi/hr

  The acceleration is  a =  15 ft/s^2 =  \frac{15 *  3600^2}{ 5280} =  36818.2 \  mi/h^2

   

Generally the acceleration is mathematically represented as

      a =  \frac{v-u}{\Delta t}

=>   36818.2 =  \frac{50 - 25 }{ \Delta t}

=>   t = 0.000679 \  hr

converting to seconds

       \Delta t =  0.0000679 *  3600

=>     \Delta t =  2.44 \  s

Generally the force is mathematically represented as

        F  =  m * a

=>      F  =  2500 *  15

=>      F  =  37500 \ \frac{lbm *  ft}{s^2}

Now converting to foot-pound-second we have  

         F =  \frac{37500}{32.2}

=>        F =  1164.6\  lbf

7 0
3 years ago
A stone is thrown downward with a speed of 8 m/s from a height of 14 m. (acceleration due to gravity: 10 m/s2) What is the speed
max2010maxim [7]

Answer:

The speed of the stone just before it hits the ground is 18.54 m/s

Explanation:

Given that,

Initial speed of the stone, u = 8 m/s

The stone is thrown downward from a height of 14 m

We need to find the speed of the stone just before it hits the ground. It can be calculated using third equation of motion as :

v^2-u^2=2ah

v is the speed of the stone just before it hits the ground

v^2=2ah+u^2

v^2=2\times 10\times 14+(8)^2

v = 18.54 m/s

So, the speed of the stone just before it hits the ground is 18.54 m/s. Hence, this is the required solution.

6 0
3 years ago
Topics related to physics​
Bezzdna [24]

Answer:

There are many topics related to physics such as :

Kinematics

Dynamics

Light

Sound

7 0
2 years ago
A wave has frequency of 5 Hz and a speed of 25 m/s. What is the wavelength of the wave?
Artyom0805 [142]

Answer:

This is the answer that I got.

Explanation:

Just check over it once.

5 0
2 years ago
How are electromagnetic waves produced? A) An accelerating electric point charge (electron) emits electromagnetic waves. B) A ba
shusha [124]
Hello,

Here is your answer:

The proper answer to this question will be option A "An accelerating electric point charge (electron) emits electromagnetic waves." That's because electromagnetic waves are formed by motion of electrically charged particles (electrons)!

Your answer is A!

If you need anymore help feel free to ask me!

Hope this helps!
8 0
3 years ago
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