**Answer:8730.63 m**

**Explanation:**

Given

Bomber velocity relative to ground

Altitude of the bomber

Range of bomb when bomb when it is released is given by

where

Horizontal velocity of bomber is equal to bomb horizontal velocity

time taken by to cover 3580 m

Therefore range of bomb is

Therefore bomber must release the bomb at a horizontal distance of 8730.63 m before the hit point

**Answer:**

Both the cases deal with the principle of pressure due to force acting on an area.

**Explanation:**

When a stone is place between a pile of book and our head when we carry it then the area subjected to the force decreases while the magnitude of the force remains same and therefore the pressure on our head increases.

As we know that pressure is force per unit area is called pressure.

Mathematically:

It is easy to cut our skin with an edge of a paper because our skin is relatively softer than the edge of a paper and the edge of a paper is thin which applies more pressure due to less area of contact with our skin.

You would want to push both containers, first one and then the other,

with exactly the same strength of push.

The one that takes off slower (with less acceleration from the same

net force) is the one with more mass.

**Answer:**

|v|=2.98m/s

**Explanation:**

In order to solve this problem we must first draw a diagram that will represent the situation. (See picture attached)

In this case the boat is being dragged by the river while it has a given velocity relative to the water and perpendicular to the flow of the river. We can take these velocities as vectors so we can add them up:

which yields:

|v|=2.98m/s

so an observer that is stationary on the shore will se the boat having a speed of 2.98m/s.

**Answer:**

The **<em><u>amplitude</u></em>** of a wave is its maximum disturbance from its undisturbed position