Một vệ tinh phải có chu kì quay là bao nhiêu để trở thành vệ tinh địa tính của Trái Đất?

Một vệ tinh địa tính có quỹ đạo nằm trong mặt phẳng xích đạo biết khoảng cách từ vệ tinh đến về mặt Trái Đất là h=36000 km và bán kính Trái Đất R=6400km. Tính gia tốc hướng tâm của vệ tinh

Một vệ tinh địa tính có quỹ đạo nằm trong mặt phẳng xích đạo biết khoảng cách từ vệ tinh đến về mặt Trái Đất là h=36000 km và bán kính Trái Đất R=6400km. Tìm tốc độ góc và tốc độ dài của vệ tinh

A: What are you going to do this summer holiday ?

B: I’m going to visit Hanoi.

A: Where are you going to stay ?

B: I’m going to stay in my uncle’s house.

B: How long are you going to stay there ?

A: For two days

B, How are you going to travel ?

A: I’m going to travel by train..

How long is he going to stay ?

Vệ tinh nhân tạo của Trái Đất ở độ cao 300m bay với vận tốc 7,9 km/s. Tính tốc độ góc? Coi chuyển động là tròn đều và bán kính Trái Đất bằng 6400km

Một vệ tinh nhân tạo của Trái Đất chuyển động theo quỹ đạo tròn cách mặt đất 640 km. Thời gian đi hết một vòng là 98 phút. Cho bán kính Trái Đất là 6400 km. Tính vận tốc dài và gia tốc hướng tâm của vệ tinh?

Một vệ tinh nhân tạo ở độ cao 250km bay quanh Trái Đất theo một quỹ đạo tròn. Chu kì của vệ tinh là 88 phút. Tính vận tốc góc và gia tốc hướng tâm của vệ tinh? Cho bán kính Trái Đất là 6400(km)

A: What are you going to do this summer holiday ?

B: I’m going to visit Hanoi.

A: Where are you going to stay ?

B: I’m going to stay in my uncle’s house.

B: How long are you going to stay there ?

A: For two days

B, How are you going to travel ?

A: I’m going to travel by train..

How is he going to travel ?

Mary and Lili do shopping. First, they go to shoe shop. Mary likes a pairs of black shoes because she likes black and it is beautiful. It is 50 000 dong. Then, they go to a clothing store. Lili likes a pink dress. It is beautiful and cheap. It is 45 000 dong. Finally, they go to the zoo.

Mary likes a pairs of white shoes because she likes white and it is beautiful

Một vệ tinh nhân tạo chuyển động tròn đều quanh trái đất mỗi vòng hết 84 phút. Vệ tinh bay cách mặt đất 300km. Tìm gia tốc hướng tâm của vệ tinh. Biết bán kính Trái Đất r=6400km

Mary and Lili do shopping. First, they go to shoe shop. Mary likes a pairs of black shoes because she likes black and it is beautiful. It is 50 000 dong. Then, they go to a clothing store. Lili likes a pink dress. It is beautiful and cheap. It is 45 000 dong. Finally, they go to the zoo.

The cost of pairs of black shoes is 50 000 dong

Một vệ tinh nhân tạo chuyển động tròn đều quanh trái đất mỗi vòng hết 84 phút. Vệ tinh bay cách mặt đất 300km.Tìm vận tốc của vệ tinh

Mary and Lili do shopping. First, they go to shoe shop. Mary likes a pairs of black shoes because she likes black and it is beautiful. It is 50 000 dong. Then, they go to a clothing store. Lili likes a pink dress. It is beautiful and cheap. It is 45 000 dong. Finally, they go to the zoo.

Lili likes a pink dress

Mary and Lili do shopping. First, they go to shoe shop. Mary likes a pairs of black shoes because she likes black and it is beautiful. It is 50 000 dong. Then, they go to a clothing store. Lili likes a pink dress. It is beautiful and cheap. It is 45 000 dong. Finally, they go to the zoo.

The pink dress is beautiful but expensive

Một vệ tinh nhân tạo của Trái Đất ở độ cao 280km bay với vận tốc 9km/s. Tính vận tốc góc, chu kì, tần số của nó. Coi chuyển động là tròn đều, bán kính trái đất R=6400km

Mary and Lili do shopping. First, they go to shoe shop. Mary likes a pairs of black shoes because she likes black and it is beautiful. It is 50 000 dong. Then, they go to a clothing store. Lili likes a pink dress. It is beautiful and cheap. It is 45 000 dong. Finally, they go to the zoo.

They go to the library

Vệ tinh địa tính chuyển động tròn đều quanh tâm Trái Đất. Cách tâm Trái Đất 42000 km. Thời gian vệ tinh quanh trong 1 vòng là 24h. Tính vận tốc của vệ tinh

My name is Lien. In my free time, I often go camping with my family. The camp is in the forest near the Red River. We go there by bus in the morning. My father likes fishing in the river. My mother likes drawing. She often draws pictures of the camp. I often go hiking in the forest because I like sports. We return home late in the evening. We enjoy camping very much.

In her free time, she often go fishing with my friend.

Một vệ tinh nhân tạo đang bay ở độ cao 220km với chu kì 60 phút quay quanh Trái Đất. Xem chuyển động của vệ tinh là chuyển động tròn đều và biết bán kính Trái Đất R=6400 km. Gia tốc hướng tâm của vệ tinh đó là

My name is Lien. In my free time, I often go camping with my family. The camp is in the forest near the Red River. We go there by bus in the morning. My father likes fishing in the river. My mother likes drawing. She often draws pictures of the camp. I often go hiking in the forest because I like sports. We return home late in the evening. We enjoy camping very much.

They go there by bus in the morning

My name is Lien. In my free time, I often go camping with my family. The camp is in the forest near the Red River. We go there by bus in the morning. My father likes fishing in the river. My mother likes drawing. She often draws pictures of the camp. I often go hiking in the forest because I like sports. We return home late in the evening. We enjoy camping very much.

Her mother likes fishing.

My name is Lien. In my free time, I often go camping with my family. The camp is in the forest near the Red River. We go there by bus in the morning. My father likes fishing in the river. My mother likes drawing. She often draws pictures of the camp. I often go hiking in the forest because I like sports. We return home late in the evening. We enjoy camping very much.

I often go hiking in the forest because I like sports

My name is Lien. In my free time, I often go camping with my family. The camp is in the forest near the Red River. We go there by bus in the morning. My father likes fishing in the river. My mother likes drawing. She often draws pictures of the camp. I often go hiking in the forest because I like sports. We return home late in the evening. We enjoy camping very much.

They return home late in the afternoon.

My name is Tom. Every day I usually get up early and do exercises in the morning. Then I have a big breakfast with different food likebread, sausages, meat, ffish, eggs, chocolate, vegetables, fruit, milk and so on. In a week I often have one sausage, two eggs and a lot of vegetables. I don’t eat too much chocolate bars and sweets because thay have a lot of fat and sugar. To be healthy, I like to eat more rice, bread, vegetables and fruits.

After doing morning exercises Tom often has a small breakfast

My name is Tom. Every day I usually get up early and do exercises in the morning. Then I have a big breakfast with different food likebread, sausages, meat, ffish, eggs, chocolate, vegetables, fruit, milk and so on. In a week I often have one sausage, two eggs and a lot of vegetables. I don’t eat too much chocolate bars and sweets because thay have a lot of fat and sugar. To be healthy, I like to eat more rice, bread, vegetables and fruits.

He likes to eat a lot of chocolate bars and sweets