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Salsk061 [2.6K]
2 years ago
10

An object weighs 250N and has a mass of 75 kg. what is the gravity on this planet?

Physics
1 answer:
Paladinen [302]2 years ago
4 0

Answer:

3.33 m/s^2

Explanation:

W=gm

g=W/m

g=250/75

g=3.33m/s^2

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Determine the vertex form of g(x) = x2 + 2x - 1. Which graph represents g(x)?<br> 5) Intro
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g(x) =  x ^{2}  + 2x - 1 =  {x}^{2}  + 2x - 1 + 2 - 2  =  \\  = (x + 1) {}^{2}  - 2

6 0
3 years ago
What do earths system include
taurus [48]

<em>Answer:</em>

<em>The Atmosphere.</em>

<em>Explanation:</em>

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6 0
3 years ago
A marble, a bowling ball, a basketball, and a baseball are rolling across the floor at 1.0 m/s. Which one has the greatest kinet
sveticcg [70]

Answer: A Bowling Ball

Explanation:

A body possess kinetic energy due to virtue of its motion. It depends on the mass of the body and the speed with which it is travelling.

K.E = 0.5 mv²

K.E. ∝ m

It is given that the marble, bowling ball, basketball and baseball all are rolling with the same speed. This means that the greatest energy would be possessed by the body having greatest mass.

On an average the mass of a marble is about 50 g, mass of a bowling ball is 750 g, mass of baseball is 150 g and mass of basketball is 600 g. Since the mass of a Bowling ball is the greatest, it would possess the greatest kinetic energy.

3 0
3 years ago
Read 2 more answers
When one person shouts at a football game, the sound intensity level at the center of the field is 58.4 dB. When all the people
Tanzania [10]

Answer:

The number of people at game are approximately 22909

Explanation:

Given data

When one person shout \beta _{1}=58.4dB

When n number of person shout together \beta _{n}=102dB

The sound intensity level during one person shout is given by:

\beta _{1}=10log(\frac{I_{1}}{I_{o}} )\\58.4=10log(\frac{I_{1}}{I_{o}} )\\5.84=log(\frac{I_{1}}{I_{o}} )\\\frac{I_{1}}{I_{o}} =10^{5.84}\\I_{1}=10^{5.84}*I_{o}

The sound intensity level during n number of person shout is given by:

\beta _{n}=10log(\frac{I_{n}}{I_{o}} )\\102=10log(\frac{I_{n}}{I_{o}} )\\10.2=log(\frac{I_{n}}{I_{o}} )\\\frac{I_{n}}{I_{o}}=10^{10.2}\\I_{n}=10^{10.2}*I_{o}

Since each person generates same sound intensity and hence total number  of persons can be determined as

 =\frac{I_{n}}{I_{1}}\\ =\frac{10^{10.2}I_{o}}{10^{5.84}I_{o}} \\=22909

Hence

The number of people at game are approximately 22909

3 0
3 years ago
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While sitting in a swivel chair, you push against the floor with your heel to make the chair spin. The 6.7 N frictional force is
nexus9112 [7]

Answer:

I = 1.4kgm²

Explanation:

The rotational motion is caused by the frictional force, which generates a torque on the system. As there is no other force that creates a torque, this can be expressed in the equation of rotational motion below:

\tau_f =I\alpha\\\\

And \tau_f=rf, where r is the distance from the point of application and the rotation axis, and f is the magnitude of the frictional force. This is because the frictional force is applied in the direction that causes the greatest angular acceleration (this is, 90°) and rf\sin90\°=rf. Then, we have that:

rf=I\alpha\\\\\implies I=\frac{rf}{\alpha}\\\\

Plugging in the given values, we obtain:

I=\frac{(0.39m)(6.7N)}{1.8rad/s^{2} } =1.4kgm^{2}

In words, the total moment of inertia is equal to 1.4kgm².

6 0
3 years ago
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