2 years ago

A 60KG WOMAN IS ON A LADDER 2 M ABOVE THE GROUND. WHAT IS HER POTENTIAL ENERGY

Physics

1 answer:

dexar [7]2 years ago

7 0

Answer:

Explanation:

PE = mgh = 60(9.8)(2.0) = 1176 J

You might be interested in

I will revise my essay so that it includes<br> what do it includes

yawa3891 [41]

Answer:

Explanation:

5 0

3 years ago

What type of shape do objects in space make as they move according to the heliocentric model?

Sladkaya [172]

Answer : Option B) Perfect Circles

Explanation : In heliocentric model where sun is considered to be the center and earth and other planets revolves around it. The shape of the objects in the space is perfectly circle as they move around the sun.

7 0

3 years ago

Read 2 more answers

Un auto se mueve con velocidad constante de 20 m/s y la mantiene durante 20 s. Después se le aplica una aceleración constante y

pentagon [3]

Answer:

26.67 s

Explanation:

v = Velocidad final = 40 m/s

u = Velocidad inicial = 20 m/s

$t_1$ = Tiempo inicial = 20 s

$t_2$ = Tiempo empleado durante la aceleración

a = Aceleración

s = Desplazamiento del automóvil durante la aceleración = 200 m

De las ecuaciones lineales de movimiento tenemos

$v^2-u^2=2as\\\Rightarrow a=\dfrac{v^2-u^2}{2s}\\\Rightarrow a=\dfrac{40^2-20^2}{2\times 200}\\\Rightarrow a=3\ \text{m/s}^2$

$v=u+at_2\\\Rightarrow t_2=\dfrac{v-u}{a}\\\Rightarrow t_2=\dfrac{40-20}{3}\\\Rightarrow t_2=6.67\ \text{s}$

El tiempo necesario para acelerar es 6.67 s

El tiempo total necesario para toda la ruta es $t=t_1+t_2=20+6.67=26.67\ \text{s}$ .

4 0

3 years ago

Total energy of an orbiting satellite is negative of its Kinetic or potential energy

Over [174]

Total energy of an orbiting satellite is negative of Its [Kinetic energy].

5 0

3 years ago

PLEASE HELP

Aleksandr [31]

B and C because an earthquake does not directly affect gravity, and precipitation doesn’t fall, it is water surfacing

5 0

3 years ago