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nika2105 [10]
3 years ago
8

The blades of your skates slide more easily over ice than do

Physics
2 answers:
Inga [223]3 years ago
5 0

Answer:

A

Explanation:

They Are Smoother and the other guy makes no sense.

lina2011 [118]3 years ago
4 0
The best answer would be C
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What is a charge? how objects can be charged? short answer pls​
nevsk [136]

Answer:

An electrical charge is created when electrons are transferred to or removed from an object. Because electrons have a negative charge, when they are added to an object, it becomes negatively charged. When electrons are removed from an object, it becomes positively charged.

Explanation:

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8 0
2 years ago
Help Please
hichkok12 [17]
Gravitational potential energy i think
8 0
3 years ago
The 1350-kg car has a velocity of 24 km/h up the 8-percent grade when the driver applies more power for 18 s to bring the car up
Brrunno [24]

Answer:

Explanation:

We shall apply concept of impulse to solve the problem  .

Impulse = force x time

impulse = change in momentum

force x time = change in momentum

initial speed u = 24 km/h = 6.67 m /s

final speed v = 65 km/h = 18.05 m /s

change in momentum = m v - mu

= m ( v-u )

= 1350 ( 18.05 - 6.67 )

= 15363 kg m/s

F x 18 = 15363

F = 853.5 N .

4 0
3 years ago
Zach, whose mass is 90 kg , is in an elevator descending at 12 m/s . the elevator takes 3.0 s to brake to a stop at the first fl
sweet-ann [11.9K]
Finding out the acceleration 12/3 = 4m/s^2
thus it is descending so the actual acceleration would be 9.8-4 = 5.8 m/s^2
the weight will be 90*5.8 = 522 N
522/9.8 = 53.2 kg
7 0
3 years ago
Read 2 more answers
What is the definition of physical change
jeka94
They are used to separate mixtures into their component compounds but can no usually be used to deprecate compounds into chemical elements or simpler compounds
7 0
3 years ago
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