Ask question

Ask question

All categories

3 years ago

12

Tony has a mass of 50 kg, and his friend Sam has a mass of 45 kg. Assume that both friends push off on their rollerblades with t

he same force. Explain which boy will have greater acceleration.

1 answer:

Citrus2011 [14]3 years ago

3 0

Answer:

Sam

Explanation:

Hes lighter

You might be interested in

What is one common product use microwaves<br><br><br><br> dont have much timeee

Olin [163]

Answer:

Fluorescent Lights

Explanation:

4 0

3 years ago

If the work done to stretch an ideal spring by 4.0 cm is 6.0 j, what is the spring constant (force constant) of this spring?

Alisiya [41]

Answer:

The spring constant is 3750 N/m

Explanation:

Use the following two relationships:

(Work) = (Force) x (Displacement)

(Force) = (Spring constant) x (Displacement)

=>

(Spring constant) = (Force) / (Displacement) = (Work) / (Displacement)^2

(Spring constant) = 6.0 kg.(m^2/s^2) / 0.0016 m^2 = 3750 N/m

The spring constant is 3750 N/m

4 0

3 years ago

Josh tests an unknown liquid substance using litmus paper. When he compared the used litmus paper to a pH scale, the color match

Hunter-Best [27]

Answer:

acid

Explanation:

because ph below 7 is acid

8 0

2 years ago

A car travels 30 km north in 25 min. and 40 km east in 35 min. What is the total time in hours? Be careful to carry over the pro

inna [77]

25+35=60mins so 1.0 hours

3 0

3 years ago

Read 2 more answers

Seven seconds after a brilliant flash of lightning, thunder shakes the house. How far was the lightning strike from the house? S

Zepler [3.9K]

Answer:

About two kilometers away

$\rm distance=2.401\ km$

Explanation:

Given:

The time gap between the light and sound to travel to the house, $t=7\ s$

<em>Since the clouds are formed in the troposphere region of the atmosphere which extends from 8 kilometers to 12 kilometers above the earth-surface and the velocity of light is 300000 kilometers per second so it is visible almost instantly, hence we neglect the time taken by the light to travel to the house from the clouds.</em>

<u>∴Distance between the lightning-strike and the house:</u>

$\rm distance=v\times t$

we have the speed of sound as: $v=343\ m.s^{-1}$

So,

$\rm distance=343\times 7$

$\rm distance=2401\ m$

$\rm distance=2.401\ km$

6 0

2 years ago