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enyata [817]
3 years ago
15

A 2.0kg cart moving right at 5.0 m/s on a frictionless track collided and sticks to a 3.0 kg cart moving left at 3.0 m/s. What i

s the final speed of the carts?
Physics
1 answer:
Mrac [35]3 years ago
8 0

Answer:

the final speed is 0.20

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The effect of gravity is more in liquid than in solid. why?​
ycow [4]

This is not that exact but I hope that this will help you.

The effect of gravity is more in liquid than in solid because as we know that liquid pressure increase in the increase in depth but solid dont

5 0
4 years ago
Read 2 more answers
Oxygen is a reactant in a combination reaction, which always produces energy in the form of heat and light. A. True B. False
harkovskaia [24]
The answer is B.False
8 0
3 years ago
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A 20 kg crate of books is at rest on a table. what is the normal force on the books?
Umnica [9.8K]

The weight of 20 kg is

                             (mass) x (gravity) =

                                   (20 x 9.8) = 196 newtons, downward.

There must be a force of 196 newtons upward on the mass. 
Otherwise the mass is accelerating either up or down.
 
4 0
3 years ago
Challenge: Determine the speed of the waves at each tension setting (high, medium and low). Explain what measurements you made t
Svetradugi [14.3K]

Answer:

high tension: 4.2 × 1.5 = 6.3 cm/s

medium tension: 2.8 ×1.5 = 4.2 cm/s

low tension: 0.8 × 1.5 = 1.2 cm/s

Explanation: Given Settings:

amplitude: 0.75 cm

damping: zero

Using

Speed = frequency ×wavelength

Where

Wavelength = 0.75 × 2 = 1.5 cm

Therefore:

high tension: 4.2 × 1.5 = 6.3 cm/s

medium tension: 2.8 ×1.5 = 4.2 cm/s

low tension: 0.8 × 1.5 = 1.2 cm/s

4 0
3 years ago
A trash can slides on a level floor after being pushed by an unhappy student. It slows and comes to a stop with a constant accel
castortr0y [4]

Answer:

Explanation:

Given:

Acceleration, a = -2.4 m/s^2

Acceleration due to gravity, g = 9.8 m/s^2

Sum of forces = 0

Fr + F = 0

Fr = µsl × m × g

Since, Fn = m × g

m × a = (- µsl × mg)

µsl = -a/g

= 2.4/9.8

= 0.245

5 0
3 years ago
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