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3 years ago

What are the cons of using a cup made of ceramic

2 answers:

6 0

The cons of using a cup made of ceramic are that it can crack when a heavy item hits it, is weak, size inaccuracy can be difficult to control when processing and drinks can taste slightly odd in particular.

Olenka [21]3 years ago

6 0

disadvantages using a cup made of ceramic: Poor shock resistance, it can crack when knocked with heavy items, and it's weak in tension, cannot be recycled, and has an odd taste.

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I need this type out answer question.

AveGali [126]

Answer:

The ball has 7.35 joules of energy at position B.

The velocity of the ball at position A is 3.13 meter/second

Explanation:

Kinetic and Gravitational Potential Energy

Kinetic energy is the form of energy that an object or a particle has by reason of its motion. An object of mass m and speed v has kinetic energy calculated by:

$\displaystyle K=\frac{1}{2}m.v^2$

Gravitational Potential Energy is the form of energy that an object has by reason of its height h relative to a certain reference. It can be calculated as follows:

$U=m.g.h$

Where g is the acceleration of gravity.

The figure shows a pendulum with a bob (ball) of mass m=1.5 Kg. When it's pulled to point B, it has a height of h= 0.5 m and set to rest.

The potential energy at that point is:

$U=1.5\ Kg\cdot 9.8 \ m/s^2\cdot 0.5\ m$

$U=7.35\ J$

The ball has 7.35 joules of energy at position B.

When the ball is released, all of the potential energy is transformed into kinetic energy when reaches point A. Thus:

K=7.35 J

From the equation of kinetic energy, we solve for v:

$\displaystyle v=\sqrt{\frac{2K}{m}}$

$\displaystyle v=\sqrt{\frac{2\cdot 7.35}{1.5}}$

$\displaystyle v=\sqrt{\frac{14.7}{1.5}}$

$\displaystyle v=\sqrt{9.8}$

v = 3.13 m/s

The velocity of the ball at position A is 3.13 meter/second

8 0

3 years ago

Use Kepler’s laws and the period of the Moon (27.4 d) to determine the period of an artificial satellite orbiting very near the

miv72 [106K]

As according to Kepler 's law

T =(4π²r³/ Gm)^1/2

here r= distance from earth center to satellite = 6400km = 6400000m

G = earth's gravitational constant= 6.67×10^-11

m = mass of earth= 5.98 ×10^24

so T =[ { 4× (3.1416)²×(6400000)³}/ {(6.67×10^-11)×( 5.98 ×10^24)} ]^1/2

T= 5133 sec

7 0

3 years ago

Read 2 more answers

The triceps muscle in the back of the upper arm extends the forearm. This muscle in a professional boxer exerts a force of 2615

mart [117]

Answer:

0.68 kg-m²

Explanation:

F = Force applied by the muscle = 2615 N

r = effective perpendicular lever arm = 2.85 cm = 0.0285 m

α = Angular acceleration of the forearm = 110.0 rad/s²

I = moment of inertia of the boxer's forearm = ?

Torque is given as

τ = I α eq-1

Torque is also given as

τ = r F eq-2

using eq-1 and eq-2

r F = I α

(0.0285)(2615) = (110.0) I

I = 0.68 kg-m²

7 0

2 years ago

When reading a seismograph, _____ waves come first, then _____ waves, and, finally, _____ waves. S, P, L L, P, S P, S, L L, S, P

Naddik [55]

When reading a seismograph, P waves (Fastest) come first, then S waves (Second fastest), and, finally, L (Love) R (Rayleigh) waves.

Considering answer options: P, S, L waves. Answer

6 0

3 years ago

Read 2 more answers

An airplane flies at airspeed (relative to the air) of 280 km/h . The pilot wishes to fly due North (relative to the ground) but

MrRa [10]

Answer:

the pilot should head the plane $7.547^{\circ}$ towarrds south- west