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3 years ago

A small dog walks 12 meters east and then 5 meters north. How many meters is the dog from her starting position?

Physics

1 answer:

kari74 [83]3 years ago

5 0

Answer:

17 meters

Explanation:

because 12 meters +5 meters =17 meters

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Do anyone know this ?

Galina-37 [17]

Answer:

Distance is 100m, displacement is 0m

Explanation:

Distance is how much you travelled in total (100m)

Displacement is when you compare your final and initial positions.

It is usually Final position - Initial position.

Since you start and finish at the same point, it would be 0 - 0 = 0m

So the displacement is 0m.

7 0

3 years ago

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Billiard ball A strikes another ball B of the same mass, which is at rest, such that after the impact they move at angles ΘA and

Drupady [299]

Answer:

7.6427m/s

Explanation:

Given: $v_a=4.7m/s, \theta_a=33.0\textdegree and \ v_b=4.5m/s$

#Applying the conservation of momentum along the x-axis: $mv_i=mv_acos\theta_a+mv_bcos\theta_b$

#And along y-axis:

$0=-sin\theta_a+mv_bsin\theta_b$

#Solving for $\theta_b$ :

$sin\rheta_b=\frac{v_a}{v_b}sin\theta_a=4.7/4.5\times sin33.0\textdegree\\=0.5688\\\therefore \theta_b=34.67\textdegree$

#By substitution in the x-axis equation:

$v_i=4.7cos 33.0\textdegree +4.5cos 34.67\textdegree\\=7.6427m/s$

Hence the original speed of the ball before impact is 7.6427m/s

4 0

3 years ago

Which option is an example of chemical energy being transformed into kinetic

SVEN [57.7K]

D I know this because I know lol.

5 0

3 years ago

Read 2 more answers

25% part (c) assume that d is the distance the cheetah is away from the gazelle when it reaches full speed. Derive an expression

levacccp [35]

maximum speed of cheetah is

$v_1 = v_{max}$

speed of gazelle is given as

$v_2 = v_{g}$

Now the relative speed of Cheetah with respect to Gazelle

$v_{12} = v_1 - v_2$

$v_{12} = v_{max} - v_g$

now the relative distance between Cheetah and Gazelle is given initially as "d"

now the time taken by Cheetah to catch the Gazelle is given as

$d = v_{12}* t$

so by rearranging the terms we can say

$t = \frac{d}{v_{12}}$

$t = \frac{d}{v_{max} - v_g}$

so above is the relation between all given variable

6 0

4 years ago

Genetic variations in a population are caused by random what?

nikitadnepr [17]

Answer:

Explanation:Genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).

8 0

3 years ago

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