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3 years ago

The total amount of power that a star radiates is called its

Physics

1 answer:

Ede4ka [16]3 years ago

3 0

Luminosity is the total amount of power a star radiate I think :)

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How do you measure the volume of irregular object? explain with diagram

masya89 [10]

Answer:

by using graphical meythod

4 0

3 years ago

How much work is done if a 50N weight is lifted to a height of 10m?

borishaifa [10]

500J

Explanation:

Given parameters:

Weight of the body = 50N

Height = 10m

Unknown:

Work done = ?

Solution;

Work done is the force that moves a body through a particular distance in the direction of the force.

In this problem, we can solve the problem by relating work done to the potential energy used in lifting the mass.

The weight on a body, a force in the presence of gravity

weight(weight) = mg

where m = mass of body

g = acceleration due to gravity

Work done = Fxd

Where F = force on the body

d = distance moved

Potential energy = mgh

where h is the height

P.E = work done = Weight x height = 50 x 10 = 500J

Learn more:

Work done brainly.com/question/9100769

#learnwithBrainly

6 0

3 years ago

The only force acting on a 2.5 kg canister that is moving in an xy plane has a magnitude of 3.0 N. The canister initially has a

Effectus [21]

Answer:44.58 J

Explanation:

mass of block $\left ( m\right )=2.5 kg$

Force magnitude=3 N

Initial velocity = $2.3\hat{i} m/s$

Final velocity= $6.4\hat{j} m/s$

Initial Kinetic Energy= $\frac{1}{2}mv^2$

= $\frac{1}{2}\times 2.5\times 2.3^2=6.612 J$

Final Kinetic Energy= $\frac{1}{2}mv^2$

= $\frac{1}{2}\times 2.5\times 6.4^2=51.2 J$

Work Done =Final -Initial Kinetic energy=51.2-6.612=44.58 J

4 0

3 years ago

4800 g to kg? With the work pls

Zigmanuir [339]

Answer:

[See Below]

Explanation:

✦ Formula = $Mass / 1000$

✧ $4800 / 1000 = 4.8$

So $4800$ grams is equal to $4.8$ kilograms.

~<em>Hope this helps Mate. If you need anything feel free to message me. </em>

3 0

4 years ago

A parachutist's fall to Earth is determined by two opposing forces. A gravitational force of 605 N acts on the parachutist. Afte

Doss [256]

Answer:15.8 m/s

Explanation:

Given

Gravitational Force $F_g=605 N$

Air resistance $F_d=689 N$

mass of Parachutist $=\frac{605}{9.8}=61.73 kg$

Velocity after $3 s$

$v=u+at$

$v=0+9.8\times 3$

$v=29.4 m/s$

Now Parachutist opens the parachute

Net for on Parachutist

$605-689=-84$

$84 N$ drag force

therefore deceleration $\frac{84}{61.73}=1.36 m/s^2$

velocity after 10 s is

$v_1=v+at$

$v_1=29.4-1.36\times 10$

$v_1=15.8 m/s$

7 0

4 years ago