Primary school first grade summer homework Chinese one question seeks the answer spray Where is the home of surf? Home in the sea When will the waves bloom? Please ask the wind Why are you so blue? I hold the sky in my arms Why are you so salty? Because the fishermen are sweating 1. The home of spray is in () 2. The first "you" refers to (), the second and third "you" refers to (), and "I" refers to ()

Primary school first grade summer homework Chinese one question seeks the answer spray Where is the home of surf? Home in the sea When will the waves bloom? Please ask the wind Why are you so blue? I hold the sky in my arms Why are you so salty? Because the fishermen are sweating 1. The home of spray is in () 2. The first "you" refers to (), the second and third "you" refers to (), and "I" refers to ()

The home of the waves is in the sea
2. The first "you" refers to (the reader), the second and third "you" refers to (the sea), and "I" refers to (the sea)

There are white clouds floating in the blue sky and (()) floating in the early morning field

Heavy fog
On the green river, there are green duckweeds
Ha ha, N years did not do this kind of problem

A condition of Cauchy mean value theorem, G '(x) is not zero at every point,

If G '(x) = 0 at a certain point, then the formula F' (ξ) / g '(ξ) = [f (a) - f (b)] / [g (a) - G (b)]. Since the value of ξ is uncertain, we must strengthen the conditions used before deducing the formula to rationalize the later derivation of the theorem

The name plates of the three appliances in Xiaoming's house are all marked with "220 V 60 W". A is an electric fan, B is an incandescent lamp and C is an electric water heater
When they all work at the rated voltage for the same time, the three electrical appliances produce the most heat

Water heater

If the x power of 3 is equal to 2 and the Y power of 12 is equal to 8, then 1 / x-3 / y is equal to?
Solve the problem with the knowledge of exponential function

3 ^ x = 212 ^ y = 8 = 2 ^ 3 = (3 ^ x) ^ 3 = 3 ^ 3x 12 ^ y = (3 * 4) ^ y = (3 ^ y) * [(2 ^ 2) ^ y] = (3 ^ y) * (2 ^ 2Y) = (3 ^ y) * (3 ^ x) ^ 2Y = (3 ^ y) * (3 ^ 2XY) = 3 ^ 3x, so y + 2XY = 3xy-3x = - 2xy1 / x-3 / y = (y-3x) / xy = - 2XY / xy = - 2XY = - 2

There is a festival lantern with 20 small bulbs in series. When it is connected to the power supply, the current at the power plug is 200mA, so the current through the 10th lantern is 200mA______ The maximum current allowed by the school fuse is 20a, and the current of each fluorescent lamp is about 200mA, so it can be installed in the school at most______ A fluorescent lamp like this

(1) Current law of series circuit: in the series circuit, the current is equal everywhere. Because the small bulbs are in series, the current is equal everywhere in the circuit, that is, the current through each small bulb is equal to the current at the power plug, which is 200mA. (2) the maximum number of fluorescent lamps that can be installed in the school is n = I total I fluorescent lamps = 20a0.2a = 100 0mA；100．

Can you find such four numbers ABCD in the range of rational numbers so that AD and a / b = C / D?
I hope there will be a process

Landlord, this problem is very simple, you think it is complex, this problem does not need process, because there are countless answers. For example: a = 1, B = 2, C = - 3, d = - 6

Open circuit voltage and short circuit current?

Open circuit voltage and short-circuit current

The starting price of a taxi in a city is 5 yuan (2 km). After that, the fare increases by 2 yuan for every additional 1 km. Now, a taxi from place a to place B pays 35 yuan in total. If you walk 800 meters from place a to place B and then take a bus, you also need 35 yuan. How much is the fare from the midpoint of place a and place B?
Don't use arithmetic!

1. First, find out the distance between a and B: (35-5) △ 2 + 2 = 17 (km): the distance between a and B is 17 km. 2. The distance from the midpoint of a and B to B is 17 △ 2 = 8.5 (km): the distance from the midpoint of a and B to B is 8.5 km

A 5 to 10 a watt hour meter can turn 1200 revolutions per hour. How many revolutions per minute does a 45 watt bulb turn?
I'm here to ask you boss! There must be a formula!

1000wx1 hour = 1 kwh, 45W = 0.045kw, 0.045kwx1h = 0.045 "C (1200 rpm x 0.045 KWH) / 1 kwh = 54 rpm, 54 / 60 = 0.9 rpm