Answer:
C
Explanation:
repeated in intervals of time
Answer:
The horizontal component is zero.
The vertical component is 
Explanation:
Given that,
The lizard climb 7m directly up on a tree.
We know that,
The horizontal component is

The vertical component is

If the lizard climb 7m directly up on a tree then,
We need to find the components
Using given data
The horizontal component of lizard is

The vertical component is

Hence, The horizontal component is zero.
The vertical component is 
Answer:
9.78 m/s²
Explanation:
To solve this, we use the gravitational formula
g = GM/r², where
g = acceleration due to gravity
G = gravitational constant
M = mass of the planet
r = radius of the planet
From the question, we got that the mass of the planet is
M = 9ME, where ME = 5.95*10^24
M = 9 * 5.95*10^24
M = 5.355*10^25 kg
Also, the Radius of the planet, R = 3RE, where RE = 6.37*10^6
R = 3 * 6.37*10^6
R = 1.911*10^7 m
On applying the values of both R and M to the equation, we get
g = GM/r²
g = (6.67*10^-11 * 5.355*10^25) / (1.911*10^7)²
g = 3.57*10^15/3.65*10^14
g = 9.78 m/s²
Therefore, the acceleration due to gravity on the planet is 9.78 m/s²
Please vote brainliest if it helped you <3
According to x-ray observations, the space between galaxies in a galaxy cluster is very hot. It is because the matter between galaxies (often called the intergalactic medium) is mostly hot, ionized hydrogen with bits of heavier elements such as carbon, oxygen and silicon thrown in.
Massive structures are collapsing than at earlier times. Large collapsing structures lead to higher velocity intergalactic shocks and, as a result, significant intergalactic shock heating, with some gas heated well above the
K temperatures.
Heating also occurs as galaxies expel out most of the gas that fell into them. The final product is a warm/hot phase, with temperatures of >
K.
Now, Let's know how do you use X-rays to make space observations?
X-radiation is absorbed by the Earth's atmosphere, so instruments to detect X-rays must be taken to high altitude by balloons, sounding rockets, and satellites.
To learn more about Galaxy Cluster, here
brainly.com/question/16557484
#SPJ4