3 years ago

All of life's---------- happen here

Physics

1 answer:

zvonat [6]3 years ago

4 0

Life happens everywhere and any place

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A Submerged Ball Part A A ball of mass mb and volume V is lowered on a string into a fluid of density Pi (Figure 1) Assume that

frozen [14]

Answer:

T = mg - $\rho_f$ ×V×g

Explanation:

Here we have the mass of the ball is given as $m_b$

The density of the fluid = $\rho_f$

The volume of the ball = V

Acceleration due to gravity = g

According to Archimedes's principle, the upthrust = Weight of fluid displaced

Tension in string = T = weight of ball - upthrust

T = mg - $\rho_f$ ×V×g

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3 years ago

A convex lens with a focal length of 10 cm is located 30 cm away from a

zloy xaker [14]

Answer: 15 cm

Explanation:

According to the Lens Equation we have the following:

$\frac{1}{f}=\frac{1}{v}+\frac{1}{u}$ (1)

Where:

$f=10 cm$ is the focal length

$u=30 cm$ is the distance between the candle (the object) and the lens

$v$ is the distance between the image and the lens

Isolating $v$ :

$v=\frac{uf}{u-f}}$ (2)

Solving:

$v=\frac{(30 cm)(10 cm)}{30 cm-10 cm}}$ (3)

Finally:

$v=15 cm$ This is where the image is located

8 0

2 years ago

Draw a neat labelled diagram for a particle moving in a circular path with a constant speed. In your diagram show the direction

Naya [18.7K]

Explanation:

Particle moving in a circular path with a constant speed.

3 0

2 years ago

A car of mass 800kg travels a distance of 40m at constant speed in a duration of 2.0s. The car exerts a forward force of 15kN.

Alex17521 [72]

W = F × s

W = 15kN × 40 m

W = 15.000 N × 40 m

W = 600.000 J

P = W/t

P = 600.000 J/2 s

P = 300.000 Watt

P = 300kWatt

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2 years ago

Which objects are opaque? Check all that apply.

Vinvika [58]

<span>textbook
track shoes
</span><span>basketball</span>

7 0

3 years ago

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