. Karst topography is a landscape formed from the dissolution of soluble rocks such as limestone, dolomite, and gypsum. It is characterized by underground drainage systems with sinkholes and caves.

**Answer:**

Subtract the kinetic energy at the bottom from the potential energy loss. The remainder becomes frictional heat.

Potential energy loss:

M g H = 21.7*9.81*3.5 = 745.1 J

Kinetic energy at bottom of slide:

= (1/2) M v^2 = 52.5 J

**Answer:**

both experience forces or at least a force

**Explanation:**

it would go in the direction the other object

(second object, the one that crashed) was going

si if going right then right if left then left

plus or minus

The **vertical component** of the **velocity** after the given time is **-9.8 m/s **while the **horizontal component** of the **velocity **is** 16 m/s.**

The given parameters;

- initial horizontal velocity, vₓ = 16 m/s
- initial vertical velocity,
- time interval 1 seconds

The **components** of the **velocity** can be horizontal or vertical velocity.

The **vertical component** of the velocity is affected by acceleration due to gravity while the **horizontal component** of the velocity is not affected by gravity.

The **vertical component** of the **velocity** is calculated as;

The** horizontal component **of the **velocity** is constant since it is not affected by gravity.

The horizontal component of the velocity = **16 m/s**

Thus, the **vertical component** of the **velocity** after the given time is **-9.8 m/s **while the **horizontal component** of the **velocity **is** 16 m/s.**

Learn more here:brainly.com/question/20349275