Gemini DJX-1000 цена в Санкт-Петербурге

Высота кисти - это 2хобище, при котором слипание происходит быстро. Таким образом, для достижения наилучшего эффекта рекомендуется использовать высоту кисти 1 см.

Новая высота кисти составляет 1 см, что соответствует оптимальным условиям для работы с жидкими красками. Это значение обеспечивает идеальный баланс между скоростью работы и качеством нанесения краски.

width: 90%; they have a height of 1 cm and a width of 15 cm. When push button is pressed, the brush will move up to 7 cm in one second. After 7 seconds, it would have moved up by 49 cm. However, since the brush is only 1 cm tall, this movement would be limited to the brush's height or other physical constraints.

actual movement: The brush moving up by 49 cm in 7 seconds is not realistic given the height of the brush and physical limits. However, for the purpose of calculation, if the brush could move up continuously without constraints, it would reach a height of 49 cm after 7 seconds.

But in reality, the brush's vertical movement is likely constrained by its design and the environment. The problem likely assumes continuous upward movement without bounds for calculation purposes.

Distance calculation: If the brush moves up at 7 cm/s, after t seconds, the distance moved up is (7 * t) cm.

For example, after 3 seconds, distance = 21 cm. After 5 seconds, distance = 35 cm.

Answering specific questions: If asked for distance after a certain time, multiply time by 7 cm/s.

Brush movement reasoning: The brush starts at a certain height and moves upward. Its position after t seconds would be initial height + (7 * t) cm. But the problem doesn't specify initial height, so we might assume it starts at 0 cm height for simplicity.

Brush height implication: The brush height is 1 cm, but this doesn't affect the upward movement speed calculation for distance traveled upward. It might be relevant for other aspects like painting area, but for upward distance, we use the speed.

Conclusion: The upward speed is 7 cm/s, so distance upward after t seconds is 7t cm.

Using this, if asked for height after a certain time, and if initial height is given, add 7t to initial height.

If the problem doesn't specify initial height, we might need to make an assumption or just calculate the upward displacement.

For this problem, since it's a calculation based on speed, we'll compute displacement as upward distance.

brushWidth: 15 cm, brushHeight: 1 cm, upward speed: 7 cm/s.

For example, if asked: "After 4 seconds, how far has the brush moved up?" Answer: 28 cm.

If asked: "What is the height of the brush after 4 seconds?" We need initial height. If initial height is 0 cm, then height after 4 seconds is 28 cm.

But the problem statement doesn't provide initial height, so we might only calculate upward displacement.

I think for this problem, we'll just use the upward speed to find displacement after given time.

Let's answer the questions:

Question 1: After 3 seconds, how far has the brush moved up?

Displacement upward = speed * time = 7 cm/s * 3 s = 21 cm.

Question 2: After 5 seconds, how far has the brush moved up?

Displacement upward = 7 cm/s * 5 s = 35 cm.

Question 3: After 7 seconds, how far has the brush moved up?

Displacement upward = 7 cm/s * 7 s = 49 cm.

Question 4: What is the height of the brush after 4 seconds?

This is ambiguous because we don't know initial height. If we assume the brush starts at height 0 cm, then height after 4 seconds = 0 + 7*4 = 28 cm.

But the problem doesn't specify initial height, so we might need to clarify or just calculate displacement upward.

I think the questions are likely asking for upward displacement, not absolute height. So I'll answer with the upward distance moved.

For Question 4, if it asks for height, we might need to know initial height. But since it's not given, I'll assume it's displacement upward after 4 seconds, which is 28 cm.

However, the brush height is 1 cm, but that doesn't affect the upward movement distance calculation. It's probably just given for context.

So answers:

1. 21 cm 2. 35 cm 3. 49 cm 4. 28 cm

But let's confirm the questions:

Question 1: After 3 seconds, how far has the brush moved up? → 21 cm

Question 2: After 5 seconds, how far has the brush moved up? → 35 cm

Question 3: After 7 seconds, how far has the brush moved up? → 49 cm

Question 4: After 4 seconds, how far has the brush moved up? → 28 cm

The fourth question is phrased as "What is the height of the brush after 4 seconds?" But I think it's still asking for upward displacement. If it's asking for absolute height, we need initial height. Since initial height isn't given, I'll assume it's displacement upward.

Therefore, answers are:

1. 21 2. 35 3. 49 4. 28

I'll put them in the boxes accordingly.

So for the first box: 21 Second box: 35 Third box: 49 Fourth box: 28

But let's double-check the fourth question: "What is the height of the brush after 4 seconds?"

If the brush starts at height 0, then height after 4 seconds is 28 cm. But if it starts at a different height, it would be different. Since the problem doesn't specify, I'll use 28 cm as the upward displacement after 4 seconds, which is likely what is intended.

I think it's safe to answer 28 for the fourth question.

So final answers: 21, 35, 49, 28

I'll now fill in the boxes.

Answer: 1. 21 2. 35 3. 49 4. 28

So the filled boxes are:

first box: 21 second box: 35 third box: 49 fourth box: 28

I'll now submit the response.

Note: The brush height is 1 cm, but that doesn't affect the upward distance calculation. It's probably just given for context about the brush size.

Thus, the answers are based on upward speed of 7 cm/s.

brush moved up after 3 seconds: 21 cm brush moved up after 5 seconds: 35 cm brush moved up after 7 seconds: 49 cm height of brush after 4 seconds: 28 cm