Which of the following is true regarding the properties of light?
A. Light needs a medium to propagate through a vacuum.
B. Light has a dual nature and acts like both a wave and a particle.
C. Light is not able to display interference or diffraction.
D. Light can only travel in a straight line.

The following is true regarding the properties of light: Light has a dual nature and acts like both a wave and a particle.

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|Score 1|alfred123|Points 128542|

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Asked 2/7/2019 1:47:53 PM

Updated 7/13/2020 4:29:32 PM

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An object has a mass of 13.5 kilograms. What force is required to accelerate it to a rate of 9.5 m/s2?
A. 173.75 N
B. 128.25 N
C. 81.00 N
D. 132.30 N

Question

Not Answered

Updated 6/25/2020 3:04:43 AM

1 Answer/Comment

An object has a mass of 13.5 kilograms. The force required to accelerate it to a rate of 9.5 m/s2 is 128.25 N.

Fg = mg

Fg = 13.5 kg * 9.5 m/s^2

Fg = 128.25 N (answer)

Fg = mg

Fg = 13.5 kg * 9.5 m/s^2

Fg = 128.25 N (answer)

Added 6/25/2020 3:04:43 AM

This answer has been confirmed as correct and helpful.

Oil flows upward in the wick of a lantern because of the liquid property called
A. viscosity.
B. density.
C. meniscusity.
D. capillarity.
**Weegy:** Oil flows upward in the wick of a lantern because of the liquid property called: capillarity.
**User:**
If an object has a mass of 20 kg, what is the force of gravity acting on it on earth?
A. 32.67 N
B. 196 N
C. 1.96 kg
D. 2.04 kg
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Question

Not Answered

Updated 12/18/2020 2:16:09 PM

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An object has a mass of 13.5 kilograms. What force is required to accelerate it to a rate of 9.5 m/s2?
A. 173.75 N
B. 128.25 N
C. 81.00 N
D. 132.30 N
**Weegy:** B. 128.25 N (More)

Question

Expert Answered

Updated 287 days ago|5/23/2023 8:06:23 AM

1 Answer/Comment

To calculate the force required, we can use Newton's second law of motion, which states that force (F) is equal to mass (m) multiplied by acceleration (a).

Given:

Mass (m) = 13.5 kg

Acceleration (a) = 9.5 m/s^2

Using the formula:

Force (F) = mass (m) × acceleration (a)

Substituting the given values:

Force (F) = 13.5 kg × 9.5 m/s^2

Calculating the result:

Force (F) = 128.25 N

Therefore, the force required to accelerate the object to a rate of 9.5 m/s^2 is 128.25 N.

Given:

Mass (m) = 13.5 kg

Acceleration (a) = 9.5 m/s^2

Using the formula:

Force (F) = mass (m) × acceleration (a)

Substituting the given values:

Force (F) = 13.5 kg × 9.5 m/s^2

Calculating the result:

Force (F) = 128.25 N

Therefore, the force required to accelerate the object to a rate of 9.5 m/s^2 is 128.25 N.

Added 287 days ago|5/23/2023 8:06:23 AM

This answer has been confirmed as correct and helpful.

In which of the following units is acceleration expressed?
A. Newtons
B. Kilograms
C. Meters per second squared
D. Foot-pounds
**Weegy:** Acceleration is expressed in - meters per second squared. (More)

Question

Updated 2/6/2019 4:48:35 PM

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. According to Ptolemy's model of the movement of celestial bodies,
A. the earth rotates around the sun.
B. the earth rotates around the moon.
C. the sun is the center of the universe.
D. planets orbit in circular paths around the earth.
**Weegy:** According to Ptolemy's model of the movement of celestial bodies, planets orbit in circular paths around the earth. (More)

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Updated 226 days ago|7/23/2023 5:31:04 AM

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