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MaRussiya [10]
3 years ago
7

Please Help!!!!

Physics
2 answers:
IgorLugansk [536]3 years ago
8 0
C. Chemical Energy is transformed to light energy and heat energy. The heat energy is keeping you warm and light energy is giving you the light you need to be able to read the book.
lapo4ka [179]3 years ago
7 0

Answer:

C. Chemical energy is transformed to light energy and heat energy.

Explanation:

Here it is given that the fire is used for two objectives

1) To warm yourself

which means we need some thermal energy so that we get the warmth from it.

2) To see to read the book

here in order read the book we required light of sufficient intensity so here we require light energy for this.

so from above requirements of energy we can say that here the energy contained in the wooden block is converted into the above forms

Also we know that energy contained in the wooden block is in the form of chemical energy so here correct answer will be

C. Chemical energy is transformed to light energy and heat energy.

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A player kicks a football from ground level with an initial velocity of 27.0 30.0 above the horizontal Find the ball's maximum h
stepladder [879]

Answer:

Given

initial velocity (u) =27.030

Force of gravidity g) =9.8

Rtc maximum height Hmix =?

sln \\ \  hmix = u {}^{2}  \div 2g \\ 27.030 \div 2 \times 9 \\  \\ hmix = 38.025m

5 0
2 years ago
Planet A takes 1 year to go around its star at an average of 1 A.U. distance. Planet B is 4 A.U. from the star. Calculate how lo
pentagon [3]

Planet Geos in orbit a distance of 1 A.U. (astronomical unit) from the star Astra has an orbital period of 1 "year." If planet Logos is 4 A.U. from Astra, how long does Logos require for a complete orbit?

TB = <span>8</span> years

7 0
3 years ago
Read 2 more answers
Determine the number of ways to throw two die and get the number 11, as well as the probability of getting 11.
Ivenika [448]

Answer:

1/18

Explanation:

The number of ways in which two die can be thrown is the sample space of the experiment

(1,1), (1,2) (1,3), (1,4) (1,5) (1,6)

(2,1), (2,2) (2,3), (2,4) (2,5) (2,6)

(3,1), (3,2) (3,3), (3,4) (3,5) (3,6)

(4,1), (4,2) (4,3), (4,4) (4,5) (4,6)

(5,1), (5,2) (5,3), (5,4) (5,5) (5,6)

(6,1), (6,2) (6,3), (6,4) (6,5) (6,6)

From here it can be seen that there are only two cases where the sum on the two die is 11 i.e., (6,5) and (5,6)

\text{Probability of getting 11}=\frac{\text{Number of favorable outcomes}}{\text{Total number of outcomes}}\\\Rightarrow \text{Probability of getting 11}=\frac{2}{36}\\\Rightarrow \text{Probability of getting 11}=\frac{1}{18}=0.056

∴ Probability of getting 11 is<u> 1/18</u>

8 0
3 years ago
PLEASE HELP!! explain the advantages of operating a motor vehicle that is 20% efficient instead of one that is 10 % efficient
sladkih [1.3K]
Well, one is more effeciant than the other. I think it would run on less gass.
7 0
3 years ago
A circuit with a resistance of 25 ohms is carrying a current of 2
-BARSIC- [3]
The heat developed can be calculated using the power rules as follows:

P = I x V = I^2 x R

First solution is to use the given values of I and R as follows:
P = I^2 x R = (2)^2 x 25 = 4 x 25 = 100 watt

Second solution is to use ohm's law to get V, then substitute to get the power as follows:
V = I x R = 2 x 25 = 50 volts
Power = V x I = 50 x 2 = 100 watt
7 0
3 years ago
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