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3 years ago

15

Luis wants to compare the density of three solid objects that are different shapes and sizes. What information does he need to m

ake the comparison?

1 answer:

tatyana61 [14]3 years ago

7 0

Answer:

u need to make sure that comparison is = to shapes and then find the shapes sizes and add them

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In an "atom smasher," two particles collide head on at relativistic speeds. If the velocity of the first particle is 0.741c to t

galina1969 [7]

Answer:

$W_x = 0.9156\ c$

Explanation:

given,

velocity of particle 1 = 0.741 c to left

velocity of second particle = 0.543 c to right

relative velocity between the particle = ?

for the relative velocity calculation we have formula

$W_x = \dfrac{|u_x - v_x|}{1-\dfrac{u_xv_x}{c^2}}$

u_x = 0.543 c

v_x = - 0.741 c

$W_x = \dfrac{0.543 c - (-0.741 c)}{1-\dfrac{(0.543 c)(-0.741 c)}{c^2}}$

$W_x = \dfrac{0.543 c +0.741 c)}{1+\dfrac{(0.543)(0.741)c^2}{c^2}}$

$W_x = \dfrac{1.284c}{1+0.402363}$

$W_x = 0.9156\ c$

Relative velocity of the particle is $W_x = 0.9156\ c$

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3 years ago

A 46.5-kg ball has a momentum of 57.2 kg m/s. What is the ball's speed?

Serhud [2]

Answer:

1.23 m/s

Explanation:

p=mv

57.2 = 46.5v

v= 57.2/46.5

v= 1.23

If you want to verify your answer, just insert the value of v in the equation.

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3 years ago

Water is called the “universal solvent.” Which statement best explains this description with respect to ionic compounds?

Semmy [17]

I think it is c for the answer

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The amount of surface area on an uncored block that has holes extending through it is equal to less than

Mkey [24]

The answer is (Less that 10%).

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If a car travels 30 miles in 5 hours, how many miles per hour is the car traveling?

Ivenika [448]

Answer:

6 mph

Explanation:

30 miles/5 hours = 6 mph

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3 years ago