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Lostsunrise [7]
4 years ago
13

What is the Kinetic Energy of a tennis ball after 40.0cm of freefall?

Physics
1 answer:
OlgaM077 [116]4 years ago
3 0
The kinetic energy is the same as the potential energy of raising it 40cm (0.4m). That's mgh where m is mass of ball. Its then 3.924*m, whatever m is equal to in kg.
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What is the SI unit for acceleration?<br><br> Multiple choices in image.
Lostsunrise [7]

It is C. m/s squared

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4 years ago
Describe all the ways that newtons laws can apply in a car crash
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3 years ago
What is a charge-coupled device (CCD), and how is it used in astronomy?
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Answer:

Charge-coupled device  (CCD) is a device that receives and transfers an electrical charge to the next region

Explanation:

Charge-coupled device  (CCD) is a device that receives and transfers an electrical charge to the next region where it can be modified like changing it to a electronic value.

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4 0
3 years ago
a mass m at the end of a spring oscillates with a frequency of 0.78 hz . when an additional 730 g mass is added to m, the freque
ozzi

The value of mass m = 0.506kg

Initial frequency = 0.78Hz

additional mass =  730 g = 0.73kg

New frequency = 0.65 Hz

F = 1/2π \sqrt{x\\}k/m

0.78 =  1/2π \sqrt{k/m}

additional mass,

0.65 = 1/2π \sqrt{k/m+0.65}

1.44 = k/m / k/m+0.73

1.44 = m+0.73 / m

1.44m -m = 0.73

1.44m = 0.73

mass m = 0.506kg

a measurement used in physics to express the inertia, a quality that all matter has in common. Effectively, it is the resistance a body of matter offers to a change in its speed or position as a result of the application of a force. The change caused by an applied force is proportional to the mass of the body. The kilograms is the measure of mass in the International System of Units (SI). Its definition is based on the Planck constant, which is set at 6.62607015 1034 joule second. The unit of energy known as a joule is one kilogramme times one square metre per second. The kilogramme is determined by precise measurements of Planck's constant, while the second and metre are already defined in terms of other physical constants.

Learn more about mass here:

brainly.com/question/506625

#SPJ4

4 0
1 year ago
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