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valentinak56 [21]
2 years ago
14

3. a) If the distance between two objects increases by a factor of 5 (5),

Physics
1 answer:
irina [24]2 years ago
3 0

Answer:

Answer for A

Explanation:

F1=GmM/r1^2

If r2 becomes r2=5r

F2=GmM/(25r^2)

Multiply with 25 gives to maintain the same force

I.e.,25F2=F1

F2=G(25m)M/25r^2=F1

By the factor 25 would change to increase to same.

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An object becomes charged when the atoms in the object gain or lose. True or False
sp2606 [1]

Answer:

True.

Explanation:

When an object's atoms gain or lose electrons, it becomes an ion, becoming charged.

3 0
4 years ago
Мне нужна помощь пожалуйста
MrRissso [65]
Type it in English please
7 0
3 years ago
Read 2 more answers
A parachute on a racing dragster opens and changes the speed of the car from 85 m/s to 45 m/s in a period of 4.5 seconds. What i
Alex Ar [27]

The acceleration of the dragster is 8.89 m/s².

To find the acceleration, the given values are,

V₀ = 85 m/s

V = 45 m/s

<h3>What is acceleration?</h3>
  • Acceleration is a rate of change of velocity with respect to time with respect to direction and speed.
  • Acceleration formula can be written as,

         \overline{a} = \frac{v - v_0}{t} = \frac{\Delta v}{\Delta t}`

a = acceleration

v = final velocity

v₀= starting velocity

t  =  time

  • Acceleration is a vector quantity.
  • The unit of acceleration is m/s².

Substituting the given values in the formula,

    a = (V-Vo)/time

       = (45-85m/s)/4.5 s.

    a = 8.89m/s².

Thus, the acceleration a of the dragster is 8.89 m/s².

Learn more about acceleration,

brainly.com/question/8231525

#SPJ1

6 0
2 years ago
Temperature of the resistor in an RC circuit. In this problem we will look at the temperature response of the resist
fomenos

RC circuit determines the capacitor's charging rate.

  • In RC (resistive and capacitive) circuits, a capacitor's time constant is the number of seconds required to charge it to 63.2% of the input voltage.
  • This duration is described by a single time constant. After two time constants, the capacitor will be charged to 86.5% of the input voltage.
  • The RC time constant, also referred to as tau, is the time constant (in seconds) of an RC circuit and is obtained by multiplying the circuit resistance (in ohms) by the circuit capacitance (in farads), This transient reaction time T is stated in terms of = R x C, where R is the resistor value in ohms and C is the capacitor value in farads.

Learn more about  RC circuits here brainly.com/question/13450553

#SPJ4.

4 0
2 years ago
find the area of a right triangle with sides 15.0 cm, 20.0 cm, and 25.0 cm. express your answer with the correct number of signi
pickupchik [31]
The area of this triangle can be calculated using herons formula since th three sides are given. It is expressed as:

A=sqrt( s(s-a)(s-b)(s-c))

where s is equal to a+b+c / 2

s=15 +20 +25 /2=30
A=sqrt( 30(30-15)(30-20)(30-25))
A= 150 cm^3
4 0
3 years ago
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