Physics, 14.09.2019 03:10 sanfordl

Suppose that you are on an unknown planet in a distant galaxy, and you are trying to determine the acceleration of gravity of this planet. the length of a physical pendulum be 0.81 m and the measured period was 1.138 s. determine the gravitational acceleration of this planet?

Answers: 2

Show answers

Answers

Answer from: teresaparraz34

gravitational acceleration is 24.69 m/s²

Explanation:

given data

length = 0.81

time = 1.138 s

to find out

gravitational acceleration

solution

we will apply here time formula that is express as

T = 2π × $\sqrt{\frac{l}{g} }$ ................1

here t is time , l is length and g is gravitational acceleration

so put here all value and find g

g = $\sqrt{\frac{l}{\frac{T^2}{4 \pi ^2} } }$

g = $\sqrt{\frac{0.81}{\frac{1.138^2}{4 \pi ^2} } }$

g = 24.69

so gravitational acceleration is 24.69 m/s²

Answer from: Quest

force is based upon mass and acceleration.the statement is not always true.

it can be explained from newton's second law of motion.

as per newton's second law of motion the rate of change of momentum is directly proportional to the applied force and takes place along the direction of force.

mathematically it can be written as -

$f\alpha \frac{dp}{dt}$

⇒ $f= k \frac{dp}{dt}$

here k is the proportionality constant whose value is 1.

$f=\frac{dp}{dt}$

$f= \frac{d[mv]}{dt}$

$f= m\frac{dv}{dt} +v\frac{dm}{dt}$

$f=ma+v\frac{dm}{dt}$ [a is the acceleration=dv/dt]

hence we see that force not only depends on mass and acceleration but also on velocity and rate of change of mass. force f will depend on mass and acceleration only when mass is constant.

hence the statement that force is based upon mass and acceleration is false.

Answer from: Quest

Sorry i don’t know what to do

Another question on Physics

Physics, 22.06.2019 02:30

Which type of bond is found between the atoms of a molecule? a. metallic b. delocalized electron c. covalent d. ionic

Answers: 1

Answer

Physics, 22.06.2019 06:40

How does the kinetic energy of a charge change as the charge moves under the effect of an electric field from higher potential to lower potential? a.the kinetic energy increases.b.the kinetic energy decreases.c.the kinetic energy remains the same.d.the kinetic energy is always zero.

Answers: 1

Answer

Physics, 22.06.2019 08:30

Pl asaaap ! match the term to the correct description. a type of wave that transfers energy where the particles in the medium move perpendicular to the direction in which the energy is traveling. a type of wave that transfers energy where the particles in the medium move parallel to the direction in which the energy is traveling. movement that is back and forth, like an equal sign = a type of wave that transfers energy where the particles in the medium move in a circle motion while the energy travels left or right. movement that is like a t transfers energy from one location to another 1. wave 2. parallel movement 3. perpendicular movement 4. transverse wave 5. longitudinal wave 6. surface wave

Answers: 1

Answer

Physics, 22.06.2019 17:50

Convection occurs when thermal energy is transferred by the movement of

Answers: 1

Answer

You know the right answer?

Suppose that you are on an unknown planet in a distant galaxy, and you are trying to determine the a...

Questions