3 years ago

What is the speed of a walking person in m/s if the person travels 1089 m in 20 minutes?

Physics

1 answer:

Nataly_w [17]3 years ago

7 0

Answer:

I think 0.89 m/s... I'm not 100% sure.

Explanation:

You might be interested in

How can recycling materials lead to environmental sustainability?

daser333 [38]

Oh my baby boy your back th anwsers is <span>A. Recycling materials help decrease the amount of new materials taken from the environment. </span>

6 0

4 years ago

Read 2 more answers

NET FORCE ( PLEASE ANSWER ASAP )

slava [35]

First picture (black background): 50 Newtons UP

Second picture (white background): 30 Newtons RIGHT

3 0

4 years ago

A comet is in an elliptical orbit around the Sun. Its closest approach to the Sun is a distance of 4.7 1010 m (inside the orbit

Lubov Fominskaja [6]

Answer:

58515.9 m/s

Explanation:

We are given that

$d_1=4.7\times 10^{10} m$

$v_i=9.5\times 10^4 m/s$

$d_2=6\times 10^{12} m$

We have to find the speed (vf).

Work done by surrounding particles=W=0 Therefore, initial energy is equal to final energy.

$K_i+U_i=K_f+U_f$

$\frac{1}{2}mv^2_i-\frac{GmM}{d_1}=\frac{1}{2}mv^2_f-\frac{GmM}{d_2}$

$\frac{1}{2}v^2_i-\frac{GM}{d_1}+\frac{GM}{d_2}=\frac{1}{2}v^2_f$

$v^2_f=2(\frac{1}{2}v^2_i-\frac{GM}{d_1}+\frac{GM}{d_2})$

$v_f=\sqrt{2(\frac{1}{2}v^2_i-\frac{GM}{d_1}+\frac{GM}{d_2})}$

Using the formula

$v_f=\sqrt{v^2_i+2GM(\frac{1}{d_2}-\frac{1}{d_1})}$

$v_f=\sqrt{(9.5\times 10^4)^2+2\times 6.7\times 10^{-11}\times 1.98\times 10^{30}(\frac{1}{6\times 10^{12}}-\frac{1}{4.7\times 10^{10})}$

Where mass of sun= $M=1.98\times 10^{30} kg$

$G=6.7\times 10^{-11}$

$v_f=58515.9 m/s$

4 0

3 years ago

Which tennis tournament is considered the Grand Daddy of them all?

joja [24]

Answer:

Wimbledon

Explanation:

7 0

3 years ago

Read 2 more answers

"With the parents from the previous problem (white WW, black ww) give the phenotype and genotype ratios for this cross."

Anit [1.1K]

Explanation:

p1: Ww x ww

gametes: w,W w,w

.......cross......

F1: Ww (2) and ww (2)

(white) (black)

therefore,

genotype ratio - 1: 1

phenotype ratio- 1: 1

3 0

3 years ago

Read 2 more answers

What is the speed of a walking person in m/s if the person travels 1089 m in 20 minutes?​

What is the speed of a walking person in m/s if the person travels 1089 m in 20 minutes?