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vaieri [72.5K]
3 years ago
15

By any method you choose, determine your average speed of walking

Physics
1 answer:
Neko [114]3 years ago
6 0
You can use simple calculation, or use a speed thermometer.
 
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¿Qué energía cinética posee una pelota de tenis de 65 g que se sirve a una velocidad de 200 km / h?
vekshin1

Therefore, the kinetic energy of an object is proportional to the square of its velocity (speed). In other words, If there is a twofold increase in speed, the kinetic energy will increase by a factor of four. If there is a threefold increase in speed, the kinetic energy will increase by a factor of nine.

4 0
4 years ago
The pressure in a compressed air storage tank is 1200 kPa. What is the tank's pressure in (a) kN and m units, (b) kg, m, and s u
Sever21 [200]

Answer:

a) 1200 kN/m²

b) 1,200,000 kg/ms²

c) 1.2 × 10⁹ kg/km.s²

Explanation:

Given:

Pressure = 1200 kPa

a) 1 Pa = 1 N/m²

thus,

1000 N = 1 kN

1200 kPa = 1200 kN/m²

b)  1 Pa = 1 N/m² =  1 kg/ms²

Thus,

1200 kPa = 1200000 Pa

or

1200000 Pa = 1200000 × 1 kg/ms²

or

= 1,200,000 kg/ms²

c) 1 km = 1000 m

or

1 m = 0.001 Km

thus,

1,200,000 kg/ms² = \frac{1,200,000}{0.001}\frac{kg}{km.s^2}

or

= 1.2 × 10⁹ kg/km.s²

3 0
3 years ago
Choose the equation of the line.<br>y=-3x - 13<br>y=-3x - 5<br>y=-3x +5<br>y=-1/3x+13​
Nookie1986 [14]

Answer: it’s B -3x-5

Explanation: just answered it and got it correct.

4 0
4 years ago
Read 2 more answers
Online masses every 8 a.m. and 2:00 p.m. will continue​
nikdorinn [45]

online is hard toooooooooo

6 0
3 years ago
Do Seasonal changes impact the environment. A. True B. False
Ainat [17]

Answer:

A - True

Explanation:

Seasonal changes in precipitation and temperature affect soil moisture, evaporation rates, river flows, lake levels, and snow cover. Leaves fall and plants wither as cold and dry seasons approach. These changes in vegetation affect the type and amount of food available for humans and other organisms.

5 0
3 years ago
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