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Norma-Jean [14]

3 years ago

15

Someone pushes on a rock and measures the net force acting on it is 147 N and acceleration to be 7.5m/s2.What is the weight of t

he rock?

1 answer:

kogti [31]3 years ago

7 0

Some1 pushes u and then u defend your self

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A student was taking a rock-climbing class that used an indoor climbing wall. Before he started, the instructor asked for his we

Wittaler [7]

F = m*g
F = 88.6 * 10 = 886 N

3 0

4 years ago

The power rating of a light bulb (such as a 100-W bulb) is the power it dissipates when connected across a 120-V potential diffe

bazaltina [42]

To solve this problem we will apply the concepts related to the calculation of power, from the two electrical forms:

$P = VI$

$P = \frac{V^2}{R}$

Here,

V = Voltage

I = Current

R= Resistance

P = Power

PART A)

$R = \frac{V^2}{P}$

Replacing,

$R = \frac{(120V)^2}{150W}$

$R = 96\Omega$

Resistance of bulb is $96\Omega$

PART B)

$I = \frac{P}{V}$

$I = \frac{150W}{120V}$

$I = 1.25A$

The bulb will draw 1.25A current

7 0

3 years ago

Which statement best explains why Earth’s outer core is in liquid form? The iron-nickel alloy melts due to hot temperatures. The

amm1812

Answer:

A. The iron-nickel alloy melts due to hot temperatures.

Explanation:

7 0

3 years ago

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Si el sonido no atraviesa las paredes entonces, ¿por qué se escuchan las voces de los vendedores dentro de nuestra casa aún cuan

lutik1710 [3]

Answer:

DE HECHO EL SONIDO DÍ PUEDE ATRAVESAR LAS PAREDES, PERO

CUANDO ENTRA EN LA PARED, EL SONIDO VIAJA MÁS RÁPIDO QUE EN EL

AIRE Y CUANDO SALE DEL OTRO LADO, EL SONIDO VA A UNA

VELOCIDAD ALTA, POR ESTO LSA VOCES SE ESCUCHAN AUNQUE NO

MUY CLARAS.

Explanation:

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3 years ago

Explain how Law 1 applies to the image to the left.

alisha [4.7K]

Answer:

12

Explanation:

3 0

3 years ago

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