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chubhunter [2.5K]
4 years ago
6

Which factor affects the force of gravity between objects? Check all that apply. A.direction

Physics
2 answers:
eduard4 years ago
5 0

Answer:b c

Explanation:

Leviafan [203]4 years ago
3 0

The gravitational force between two masses is given by the formula

F=G\dfrac{Mm}{r^2}

where G is the <em>gravitational constant, </em>M is the larger mass, m is the smaller mass, and r is the distance between the centers of the objects. The values we can change here to affect that gravitational force are the <em>mass </em>and the <em>distance</em>. Time and shape have no impact on this force.

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What is the frequency of a clock waveform whose period is 750 microseconds?
stich3 [128]
The frequency f of a wave is defined as the inverse of the period T:
f= \frac{1}{T}
The clock in the problem has a waveform with period T=750 ms=0.750 s. Therefore, its frequency is
f= \frac{1}{0.750 s}=1.33 Hz
6 0
4 years ago
una fila di ballerini lunga complessivamente 2,3 m sta avvicinandosi perpendicolarmente a uno specchio. Se il primo ballerino, e
antoniya [11.8K]

Answer:

A Benjamin Franklin

B George Washington

C Abraham Lincoln

D John Adams

7 0
3 years ago
A block of mass m=9.0 kg and speed V and is behind a block of mass M= 27 kg and speed of .50 m/s. The surface is frictionless, a
sammy [17]

Answer:

2.06 m/s

Explanation:

From the law of conservation of linear momentum, the sum of momentum before and after collision are equal. Considering this case where we have frictionless surface, no momentum is lost in the process.

Momentum before collision

Momentum is given by p=mv where m and v represent mass. The initial sum of momentum will be 9v+(27*0.5)=9v+13.5

Momentum after collision

The momentum after collision will be given by (9+27)*0.9=32.4

Relating the two then 9v+13.5=32.4

9v=18.5

V=2.055555555555555555555555555555555555555 m/s

Rounded off, v is approximately 2.06 m/s

5 0
3 years ago
What is the terminal velocity of blood? A. 8.9 feet/seconds B. 9.8 feet/seconds C. 25.1 feet/second D. 52.1 feet/seconds
goblinko [34]

Answer:

the answer is c) 25.1 feet/second

Explanation:

because the blood droplets can not increase speed past terminal velocity 100.

3 0
3 years ago
A man walks 30 m to the west, then 5 to the east in 45 seconds
exis [7]
His average speed is  (35m/45s) = 7/9 meters per second.

His average velocity is  (30m W + 5m E) / (45s) = 25 m/s West .
8 0
3 years ago
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