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3 years ago

11

Identify two objects at your desk, and describe each using at least 5 physical properties of matter that were discussed in this

module.

2 answers:

velikii [3]3 years ago

8 0

Answer:

the pencil i have on my desk is hard

Explanation:

i dont have 5 but here is one

Firlakuza [10]3 years ago

7 0

Color, shape, size, texture, volume, and mass are a few of the physical properties. Whatever is on your desk that matches will be correct!

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Two blocks of masses M and 2M are initially traveling at the same speed v but in the opposite directions. They collide and stick

Hatshy [7]

Answer:

Explanation:

Given

Two masses M and 2 M with velocity v in opposite direction

After collision they stick together

Initial momentum

$P_i=Mv-2Mv$

final momentum

$P_f=3Mv'$

Conserving momentum

$P_i=P_f$

$-Mv=3Mv'$

$v'=\frac{v}{3}$

i.e. system moves towards the direction of 2M mass

Initial kinetic Energy $K_1=\frac{1}{2}Mv^2+\frac{1}{2}2Mv^2$

$K_1=\frac{3}{2}Mv^2$

Final Kinetic Energy $K_2=\frac{1}{2}\cdot (3M)\cdot (\frac{v}{3})^2=\frac{3}{18}Mv^2$

loss of Energy $=K_1-K_2$

$=\frac{3}{2}Mv^2-\frac{3}{18}Mv^2$

$=\frac{4}{3}Mv^2$

3 0

3 years ago

A through shaped tank is located 3 meters underground (The top of the tank is 3 meters away from ground level.) The dimensions o

vovangra [49]

Answer:

900kJ

Explanation:

Work done hereis lifting that water mass on to the surface level

v = volume of the tank

d= density of water (1000kg/m3)

g = gravotational acceleration

workdone=Weight * distance

= (v*d*g)*distance

= $=((\frac{8+4}{2} )*5*10)*1000*10*3\\=900000J\\=900kJ$

4 0

3 years ago

Suppose that an object undergoes simple harmonic motion, and its displacement has an amplitude A = 15.0 cm and a frequency f = 1

cestrela7 [59]

Answer:

Maximum speed ( v ) = 10.4 m/s (Approx)

Explanation:

Given:

Amplitude A = 15.0 cm = 0.15 m

Frequency f = 11.0 cycles/s (Hz)

Find:

Maximum speed ( v )

Computation:

Angular frequency = 2πf

Angular frequency = 2π(11)

Angular frequency = 69.14

Maximum speed ( v ) = WA

Maximum speed ( v ) = 69.14 x 0.15

Maximum speed ( v ) = 10.371

Maximum speed ( v ) = 10.4 m/s (Approx)

5 0

3 years ago

: In heavy rushIn heavy rush-hour traffic you drive in a straight line at 12 m/s for 1.5 minutes, then you have to stop for 3.5

zhuklara [117]

Guessing you want the average speed. We can multiple each speed by the time we spent going that speed, and them all together and then divide by the total time we spent in traffic to get the average speed. We spent a total of 7.5 minutes in traffic, so average speed = (12*1.5+0*3.5+15*2.5)/7.5 = 7.4 m/s

8 0

3 years ago

Other than the depth and the atmospheric pressure, state one quantity that affects the

Hunter-Best [27]

Answer:

density

Explanation:

pressure within a liquid a liquid only depends on the density of the liquid,the acceleration due to gravity, and the depth within the liquid

7 0

3 years ago