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Alexus [3.1K]
3 years ago
6

What does f=G(m1m2)/R2 help us find

Physics
1 answer:
amm18123 years ago
4 0

Answer: Gravitational force

Explanation:

The law of universal gravitation states that the force of attraction (F) between two bodies is directly proportional to their masses m1 and m2, and inversely proportional to the square of the distance (R) seperating them.

Thus, it is expressed mathematically as:

F = Gm1m2/R²

where,

- G is the gravitational constant with a value of 6.7 x 10^-11 Nm2/kg2

- F is the Gravitational force (unit is Newton)

- m1 and m2 are the masses of the two bodies (unit is kilograms)

- R is the distance seperating the two bodies. (unit is metres)

Thus, the formula f=G(m1m2)/R² help us find the gravitational force.

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A skateboarder has an acceleration of −1.9 m/s2. If her initial speed is 6 m/s, how long does it take her to stop?
SSSSS [86.1K]
You said that she's losing 1.9 m/s of her speed every second.

So it'll take

             (6 m/s) / (1.9 m/s²)  =  3.158 seconds  (rounded)

to lose all of her initial speed, and stop.
6 0
3 years ago
A chef places an open sack of flour on a kitchen scale. The scale reading of
Novay_Z [31]

Answer:

Explanation:

Given

Initial reading on scale =40 N

So, we can conclude that weight of the sack is 40 N

After this a 10 N force is applied upward on the sack such that the net force becomes (40-10) N downward (because downward force is more)

This net downward force is the resultant of earth graviational pull and the applied upward force.

So, this downward force acts on the machine which inturn applies an upaward force of same magnitude called Normal reaction.

This situation can be diagramatically represented by figure given below  

4 0
4 years ago
If a circuit has a power of 50 W with a current of 4.5 A, what is the resistance in the circuit?
lawyer [7]

Answer:

{ \rm{power, \: p = current \times p.d}} \\ { \rm{50 = 4.5 \times (current \times resistance)}} \\ { \rm{50 = 4.5 \times (4.5 \times r)}} \\ { \rm{resistance =  \frac{50}{ {4.5}^{2} } }} \\  \\ { \rm{resistance = 2.5 \:  ohms}}

8 0
2 years ago
When all group iia elements lose their valence electrons, the remaining electron configurations are the same as for what family
Orlov [11]
Noble Gases

I hope I helped

ΩΩΩΩΩΩΩΩΩΩ

8 0
3 years ago
Read 2 more answers
A jet plane is cruising at 310 m/s when suddenly the pilot turns the engines up to full throttle. after traveling 4.0 km , the j
Inessa [10]
For this problem, we would be using the formula: Vf^2 = Vi^2 + 2ad 
where:
Vf = 400m/s 
Vi = 300m/s 
a = ? 
d = 4.0km 
= 4000m 

400^2 = 300^2 + 2a4000 
a = [ 160000 - 90000 ] / 8000 
a = 8.75m/s^2 
rounding it off to 2 significant figures, will give us 8.8 m/s^2.
4 0
4 years ago
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