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NARA [144]
3 years ago
6

Which units are used to express kinetic energy

Physics
2 answers:
Kay [80]3 years ago
4 0

Oh !  You just said "energy". So it's going to be measured in Joules.

nevsk [136]3 years ago
3 0

kinetic energy is usually measured in joule J which is equals to kgm²/s²

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Eating breakfast in the morning increases the ability to learn in school.
bonufazy [111]

Answer:

Independent Variable - eating reakfast

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Constant Variable - going to school

Explanation:

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2 years ago
What would be the difference between kinetic and potential energy​
igomit [66]

Answer:

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3 years ago
2. Two spherical objects with radii 1 m have masses of 1.5 kg and 8.5 kg. They are separated by a
____ [38]

Answer:

They are separated by a distance of 18 m. Find the gravitational attraction between them. r= 1 m r= 1 m 18 m. Mass = 1.5 kg. Mass = 8.5 kg.

6 0
2 years ago
3. Some guitarists like the feel of a set of strings that all have the same tension. For such a guitar, the G string (196 Hz) ha
Vlad [161]

Answer:

0.98 g/m

Explanation:

Note: Since Tension and frequency are constant,

Applying,

F₁²M₁ = F₂²M₂............... Equation 1

Where F₁ = Frequency of the G string, F₂ = Frequency of the A string, M₁ = mass density of the G string, M₂ = mass density of the A string.

make M₂ the subject of the equation

M₂ = F₁²M₁/F₂²............... Equation 2

From the question,

Given: F₁ = 196 Hz, M₁ = 0.31 g/m, F₂ = 110 Hz

Substitute these values into equation 2

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4 0
3 years ago
A man in a gym is holding an 8.0-kg weight at arm's length, a distance of 0.55 m from his shoulder joint. What is the torque abo
kipiarov [429]

Answer:

  \tau =37.34\ N m

Explanation:

given,

mass of the weight = 8 Kg

distance = 0.55 m

angle below horizontal = 30°

torque about shoulder

  \tau = \vec{r} \times \vec{F}

  \tau = r \times F cos \theta

  \tau = 0.55 \times 8 \times 9.8 \times cos 30^0

  \tau =37.34\ N m

torque about his shoulder join is equal to   \tau =37.34\ N m

5 0
3 years ago
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