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Greeley [361]
3 years ago
7

Helppppp plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz!

Physics
1 answer:
Fynjy0 [20]3 years ago
6 0
C real,inverted and smaller than the object
You might be interested in
When a metal element bonds with a non mental element they are known as ____ bond
frozen [14]

Answer:

ionic

Explanation:

ionic bond is when a metal and nonmetal are bonded together

metallic bond is when a two metal are bonded

covalent is nonmetal and nonmetal bond or idk

4 0
4 years ago
Consider an elevator carrying Kermit the frog weighing 4000.0 N is held 5.00 m above a spring with a force constant of
tigry1 [53]

Answer:

The maximum compression distance of the spring is 0.375 m

Explanation:

The given parameters are;

The weight of the elevator and the frog = 4,000.0 N

The location of the elevator above the spring = 5.00 m

The force constant of the spring, k = 8,000.0 N/m

The frictional force of the brakes = 1,000.0 N

The net force, F, of the elevator on the spring is F = 4,000.0 N - 1,000.0 N = 3,000.0 N

F = 3,000.0 N

The maximum compression distance of the spring, x is given as follows;

F = k × x

Substituting the known values gives;

3,000.0 N = 8,000.0 N/m × x

∴ x = (3,000.0 N)/(8,000.0 N/m) = 0.375 m

x = 0.375 m = 37.5 cm

The maximum compression distance of the spring, x = 0.375 m.

4 0
3 years ago
A batter hits two baseballs with the same force.One hits the ground near third base.The other is a home run out of the park.Wher
densk [106]

The formula for work is:

W = F * d  Where W is work, F is Force, and d is distance.

Without doing any math, it can be seen from the equation that work is directly proportional to the force applied and the distance it travels.  The homerun hit both traveled more distance and had a grater force applied to it in order to achieve this distance (assuming both baseballs weighed the same).  Based on this reasoning, it is valid to conclude that the baseball which was a homerun was the hit that accomplished more work.

6 0
3 years ago
The rate at which a metal alloy oxidizes in an oxygen-containing atmosphere is a typical example of the practical utility of the
Ray Of Light [21]

Answer:

The activation energy is  Q = 328.31 \ K J/mol

Explanation:

From the question we are told that

      The rate constant is  k

       at the temperature T_1  = 300 =  300 + 273 =  573 \ K

      The value of k is  k_1 = 1.05 *10^{-8} \  kg /m^4 \cdot s

      at temperature T_2 = 400 ^oC =  400 + 273 =  673 \ K

       The value of  k is  k_2 = 2.95 *10^{-4} \ kg /m^4 \cdot s

The rate constant is mathematically represented as

       k  =  Ce^{- \frac{Q}{RT} }

Where Q is the activation energy

         R is the ideal gas constant with a value of  R =  8.314 \ J /mol \cdot K

          C is a constant

           T is the temperature

For the first  rate constant

       k_1 = Ce ^{-\frac{Q}{RT_1} }

For the second   rate constant

       k_2 = Ce ^{-\frac{Q}{RT_2} }

Now the ratio between the two given rate constant is  

      \frac{k_1 }{k_2}  =  e^{(\frac{Q}{R} [\frac{1}{\frac{T_2 - 1}{T_1} } ] )}

  =>    ln [\frac{k_1}{k_2} ] =  \frac{Q}{R}  * [\frac{1}{\frac{T_2 -1}{T_1} } ]

substituting values  

       ln [\frac{1.05 *10^{-8}}{2.95 *10^{-4}} ] =  \frac{Q}{8.314}  * [\frac{1}{\frac{673 -1}{573} } ]

=>     Q = 328.31 \ K J/mol

7 0
3 years ago
When you talk about a battery's voltage, you are referring to
stich3 [128]
How powerful it is :)
8 0
3 years ago
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