3 years ago

Why is it harder to get something moving than to keep it moving?

Physics

1 answer:

vovikov84 [41]3 years ago

6 0

Answer:

momentum

Explanation:

when something starts rolling momentum keeps it going.

You might be interested in

Star A and Star B have measured stellar parallax of 1.0 arc second and 0.75 arc second, respectively. Which star is closer? How

zhuklara [117]

Answer:

Star A is closer than Star B

Explanation:

As we know that in parallax method of distance measurement the angle subtended by the star when it covers a distance of one Parsec arc length, it is known as parallax angle

Here we can say

$angle = \frac{1 Parsec}{distance}$

so we have

$distance = \frac{1 Parsec}{angle}$

so here we have

angle subtended by Star A = 1 arc sec

angle subtended by star B = 0.75 arc sec

now we have

distance for star A is given as

$d_a = \frac{1 Parsec}{1} = 1 Parsec$

distance of star B is given as

$d_b = \frac{1 Parsec}{0.75} = 1.33 Parsec$

So star A is closer than star B

7 0

3 years ago

If an astronaut can throw a certain wrench 15.0 m vertically upward on earth, how high could he throw it on our moon if he gives

Sever21 [200]

Answer:

hm= 18.2 m

Explanation:

Solution is attached

5 0

3 years ago

A sample of nitrogen gas is inside a sealed container. The volume of the container decreases while the temperature is kept const

frez [133]

I guess it’s d) isobaric mate correct me if I am wrong :D

7 0

3 years ago

Does calm water have a regular reflection or a diffuse reflection

Shtirlitz [24]

A regular relflection

8 0

3 years ago

Read 2 more answers

Brainliest for whoever is first and right.

devlian [24]

The answer is 9.8, did this last year in AP Science

3 0

3 years ago