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3 years ago

14

in the absences of friction, gravity, and all other external forces, what kind of speed will an object display if it’s travel fr

om the bottom to the top of an inclined plane

1 answer:

krek1111 [17]3 years ago

3 0

Answer:

Constant speed.

Explanation:

In the absence of friction a body will not accelerate and hence the speed remains constant.

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A slightly bruised apple will rot extensively in about 2.5 days at room temperature (25.0°C). If it is kept in the refrigerator

DaniilM [7]

Answer:

Activation energy for the rotting reaction is 4.805 x 10⁻⁶ kJ/mol

Explanation:

Use the Arrhenius equation applied for two temperatures:

Ea = R· ln(k2/k1) · (1/T1 – 1/T2)

Where

R= 8.314x10-3kJ/(mol.K)

k2/k1 = 2.5/17 = 0.147 ∴ ln(k2/k1) = - 1.92

(1/T1 – 1/T2) = 1/298K – 1/273.5K = - 0.000301 K-1

Ea = 8.314x10⁻³ x (- 1.92) x (- 0.000301 K-1)

= 4.805 x 10⁻⁶ kJ/mol

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3 years ago

The relatively high resistivity of dry skin, about 1 x 10^6 ohms - m, can safely limit the flow of current into deeper tissues o

Airida [17]

According to the values given, and to the similarity with the subject raised in the question, the subject is resistance and conductivity. With the data presented we can find the resistance in the palm skin. The formula relating resistivity (ρ) to resistance (R), cross-sectional area (A) and length (L) is

$R = \frac{\rho L}{A}$

Where,

L = Length

A = Area

$\rho$ = Resistivity

Our values are given as,

$A= 1*10^{-2}m^2$

$L = 1.5mm$

$\rho = 1*10^6 \Omega \cdot m$

$R = \frac{(1*10^6)(1.5*10^{-3})}{1*10^{-2}}$

$R = 1.5*10^5\Omega$

$R = 0.5M\Omega$

Therefore the resistance of the skin of the palm is $0.5M\Omega$

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3 years ago

A hiker walks 9.4 miles at an angle of 60° south of west. Find the west and south components of the walk

Allisa [31]

Answer:

Ax= -4.7 miles

Ay= -8.1

Explanation:

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3 years ago

How is heat energy transferred from a warm object to a cold object there is direct contact?

sdas [7]

A is the answer!!!!!!!!!!!!

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VashaNatasha [74]

Answer: The capacitance of a capacitor is the ability of a capacitor to store an electric charge per unit of voltage across its plates of a capacitor. Capacitance is found by dividing electric charge with voltage by the formula C=Q/V. Its unit is Farad .

Explanation: hope it helps

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3 years ago

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