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Tom [10]
3 years ago
15

The shaded boxes contain the first half of four statements. The unshaded boxes

Physics
1 answer:
I am Lyosha [343]3 years ago
3 0

Answer: try harder

Explanation: dont answer my post if your going to troll

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Why is a pond appears shallower than it actually is?​
larisa86 [58]

Answer:

Below:

Explanation:

Consider two rays originating from the bottom of the pond. As these rays get refracted into the air, they bend away from the normal. ... This point gives the apparent position of the bottom of the pond, therefore, the pond appears to be shallower.

Hope it helps....

It's Ms-Muska

8 0
3 years ago
Which of these is transparent?
jolli1 [7]
The answer is definitely A. A transparent material is a material that allows light to pass through it and can be seen through. A glass jar can be seen through. Some people might say B, which is a mirror, but a mirror cannot be seen through, it only shows reflection. Hope i helped. Have a nice day and Happy New Year.
3 0
3 years ago
Read 2 more answers
1. How much heat energy ( Q ) is required to heat 2.0 kg of copper from 30.0 oC to 80.0 oC?
djverab [1.8K]

Answer:

Heat capacity, Q = 38500 Joules

Explanation:

Given the following data;

Mass = 2 kg

Initial temperature, T1 = 30°C

Final temperature, T2 = 80°C

Specific heat capacity of copper = 385 J/Kg°C

To find the quantity of heat required;

Mathematically, heat capacity is given by the formula;

Q = mcdt

Where;

Q represents the heat capacity or quantity of heat.

M represents the mass of an object.

C represents the specific heat capacity of water.

dt represents the change in temperature.

dt = T2 - T1

dt = 80 - 30

dt = 50°C

Substituting the values into the formula, we have;

Q = 2 * 385*50

Heat capacity, Q = 38500 Joules

4 0
3 years ago
he primary coil of a transformer is connected to 240 V ac supply. The induced secondary voltage is 60 V. If the ac current in th
vovikov84 [41]

Answer:

Secondary current is  8A

Explanation:

Data :

Primary supply = Vp = 240 V

Secondary supply = Vs = 60V

Primary current = Ip = 2A

Secondary current = Is = ?

Formula  :     Vp × Ip = Vs × Is

So for secondary current formula becomes

          Is = (Vp/Vs)×Ip =  (240/60) × 2

     Is = 4 × 2 = 8A

6 0
2 years ago
Reggie accidentally left his books on top of his car before he left for class. The books stayed on top of his car while he was d
Volgvan

Answer: When Reggie's car turned eastward, his books continued moving northward, causing them to slide off the top of his car. :)

8 0
3 years ago
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