All categories

3 years ago

Please helppppppppppppppppp

Physics

2 answers:

nirvana33 [79]3 years ago

5 0

Answer:

the given cube is SILVER

Explanation:

Density = Mass/ Volume

Volume of a cube = L*L*L= 1.5*1.5*1.5= 3.375 cm³

Mass=m = 34.45g

Density of the solid = 34.45/3.375= 10.503g/cm³

VladimirAG [237]3 years ago

5 0

Silver

35.45/1.5^3= 10.501

You might be interested in

The process called _____ destroys old oceanic crust at subduction zones.

ZanzabumX [31]

The process is called subduction

5 0

3 years ago

The tires of a car make 77 revolutions as the car reduces its speed uniformly from 95.0 km/h to 65.0 km/h. The tires have a diam

nika2105 [10]

Answer:

Explanation:

95.0 km/hr = 26.39 m/s

65 km/hr = 18.06 m/s

Circumference of a tire is 0.9π m

77 revolutions is a distance of

77(0.9π) = 69.3π m

v² = u² + 2as

a = (v² - u²) / 2s

a = (18.06² - 26.39²) / (2(69.3π))

a = -0.85 m/s²

s = (v² - u²) / 2a

s = (0² - 26.39²) / 2(-0.85)

s = 409 m

5 0

3 years ago

3.How can you find the velocity of the object just before impact without directly measuring it?

e-lub [12.9K]

Ugudbis sinwajdiekbdudjwndjid

7 0

4 years ago

5. How much power is dissipated when 0.2 ampere of current flows through a 100-ohm resistor ?

swat32

Answer:

P=I*I*R

Where P is power

I is current

R is Resistance

P=2*2*100

P=400W

Explanation:

Power is the rate of doing work.

From the Ohm’s law V=IR

Power=I*I*R

4 0

3 years ago

Aaron rode her bike to his house to play cards he Road for 1.6 hours at 6.5 KMH another 15 minutes at four KMH what was her aver

Kay [80]

Answer:

The average speed during the trip is 6.16 $\frac{km}{hour}$

Explanation:

Speed is a physical quantity that expresses the variation in position of an object and as a function of time. In other words, speed expresses the relationship between the space traveled by an object, the time used for it and its direction.

The speed can be calculated by the expression:

$Speed=\frac{distance}{time}$

Aaron rode his bike home for 1.6 hours at 6.5 km/h and another 15 minutes at 4 km/h. So, the distance in each of the stages can be calculated as, taking into account that 60 minutes= 1 hour:

distance1=speed*time= 6.5 $\frac{km}{h}$ *1.6 hours= 10.4 km

distance2= speed*time= 4 $\frac{km}{h}$ *15 minutes= 4 $\frac{km}{h}$ *0.25 hours= 1 km

So:

total distance= 10.4 km + 1 km= 11.4 km
total time= 1.6 hours + 0.25 hours= 1.85 hours

Then:

$Speed=\frac{11.4 km}{1.85 hours}$

$Speed=6.16\frac{km}{hour}$

The average speed during the trip is 6.16 $\frac{km}{hour}$

8 0

3 years ago