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HACTEHA [7]
2 years ago
14

You are asked to calculate how long a new battery will last on a flashlight when the flashlight is turned on. how long should yo

u expect the answer to be?
Physics
1 answer:
valina [46]2 years ago
5 0

Answer:

           Depends on the capacity of battery. Mostly our phones flashlight can be used up to 8 to 10hrs continuosly

Explanation:

Capacity of the battery is level to which battery is charged, &  amount of current drawn by the flashlight, you can calculate the answer yourself if u know the capacity of that light.

Moreover you can calculate this by using equation,

         E =Pt

So, for time

      t=E/P

Batteries are rated in Amp hours, like 10 amp hours will supply us 1 amp for 10 hours

2 amps will give us 5 hours

to learn more about lasting of flashlight,

brainly.com/question/13869629?referrer=searchResults

#SPJ4

You might be interested in
How are electrical charges similar to magnets?
earnstyle [38]

Answer:

The two types of forces are related; a moving magnet can make electrical charges move, cause an electric current, and in turn cause magnetism. ... Objects that have the same charge, both positive or both negative, repel each other, and those with opposite charges attract each other.

Explanation:

5 0
3 years ago
dos contenedores de objetos tienen 30 y 40 kg de masa respectivamente y están sobre una superficie horizontal sin rozamiento una
Dmitry_Shevchenko [17]

Answer:

The acceleration of each mass is the same, and approximately equal to 1.43\,\,\frac{m}{s^2}

Explanation:

Notice that the mass of the whole system is: 30 kg + 40 kg = 70 kg

If we use a net force of 100 N on the combined system, we can find the acceleration imparted to the masses via Newton's second law:

F_{net}= M\,*\,a\\100\,\,N = 70\,\,kg * a\\a = \frac{100}{70} \,\frac{m}{s^2} \\a\approx 1.43\,\frac{m}{s^2}

4 0
3 years ago
13. Convert 30° C to Fahrenheit<br> doo<br> a. 30 F<br> b. 86 F<br> 34 F<br> d. 100 F
GREYUIT [131]

Answer:86F

Explanation:

Using the formula

F=(°Cx9/5)+32

F=(30x9/5)+32

F=(270/5)+32

F=54+32

F=86F

6 0
3 years ago
A firecracker in a coconut blows the coconut into three pieces. Two pieces of equal mass fly off south and west, perpendicular t
Lisa [10]

Explanation:

Let us assume that piece 1 is m_{1} is facing west side. And, piece 2 is m_{2} facing south side.

Let m_{1} \text{and} m_{2} = m and m_{3} = 2m. Hence,

        2mv_{3y} = m(21)

          v_{3y} = \frac{21}{2}

                     = 10.5 m/s

2mv_{3x} = m(21)

          v_{3x} = \frac{21}{2}

                     = 10.5 m/s

  v_{3} = \sqrt{v^{2}_{3x} + v^{2}_{3y}}

              = \sqrt{(10.5)^{2} + (10.5)^{2}}

              = 14.84 m/s

or,          = 15 m/s

Hence, the speed of the third piece is 15 m/s.

Now, we will find the angle as follows.

          \theta = tan^{-1} (\frac{v_{3y}}{v_{3x}})

                      = tan^{-1}(\frac{10.5}{10.5})

                      = tan^{-1} (45^{o})

                      = 45^{o}

Therefore, the direction of the third piece (degrees north of east) is north of east.

5 0
4 years ago
A Force Of 15 N Is Applied To A Spring, Causing It To Stretch 0.3 M. What Is The Spring Constant For The Particular Spring
Hitman42 [59]
The spring constant is the number of Newtons needed to cause an extension of 1metre. So in this case it is 15/0.3 = 50 N/m
3 0
3 years ago
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