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kari74 [83]
3 years ago
13

A 50 kg ice skater moving at 5 m/s collides with a second stationary skater with mass 70 kg. The skaters cling together after th

e collision and move without friction. Compute their speed after the collision.(3 sig figs)

Physics
1 answer:
Aleksandr [31]3 years ago
6 0

Answer: v=2.08m/s

Check the pic for explanation

Explanation:

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If one of two interacting charges is doubled, the force between the charges will _____________.
malfutka [58]

If one of two interacting charges is doubled, the force between the charges will double.

Explanation:

The force between two charges is given by Coulomb's law

F=\frac{k q1 q2}{r^{2}}

K=constant= 9 x 10⁹ N m²/C²

q1= charge on first particle

q2= charge on second particle

r= distance between the two charges

Now if the first charge is doubled,

we get F'=\frac{k (2q1) q2}{r^{2}}

F'= 2 F

Thus the force gets doubled.

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Answer:

The circuit contains a filament bulb, connected with terminal to a terminal.

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If If the mass of a material is 88 grams and the volume of the material is 24 cm3, what would the density of the material be?
Tanzania [10]

Answer:Mass is measured on a triple beam balance units = GRAMS.

Volume is measured in two ways.

Regular Object = Length X Width X Height units = cm3

Irregular Objects units = mL

 Pour about 50 mL of water into a graduated cylinder. Measure and record the exact amount.

 Add the object. Measure and record the new water level.

 SUBTRACT the original water amount from the new water level to find the volume of the object.

= MASS (g)

VOLUME (cm3

)

Example One:

A mineral has a mass of 100g and a volume of 10 mL. What is its density?

= mass = 100g = 10 g/mL

Volume 10 mL

Example Two:

A mineral has a mass of 25 g and a volume of 5 cm3

. What is its density?

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Volume 5 cm3

**Mass ÷ Volume to find the numerical answer. Bring over BOTH units**

Explanation:

5 0
4 years ago
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