Kinetic of automobile

Mass m = 1,250 Kg; V = 11 m/s

Formula: K.E = 1/2 mV²

K.E = 1/2(1,250 Kg)(11 m/s)²

K.E = 75,625 J

Speed required for insect to have the same kinetic energy as automobile

Mass of insect = 0.72 g convert to Kg m = 7.2 x 10⁻⁴ Kg

K.E = 1/2 mV² Derive V =?

V = 2 K.E/m

V = √2(75,625 J)/7.2 x 10⁻4 Kg

V = √2.1 x 10⁸ m²/s²

V = 14,491.34 m/s (velocity of insect)

5 0

3 years ago

Atmospheric pressure decreases as we go higher up the earth's surface. give reasons

julsineya [31]

Atmospheric pressure is molecular's heavy. So the total number of molecules decreases by going up the surface of the earth. Ok?

6 0

3 years ago

If a man shoots a spear at a place where he sees the fish inside water , is it possible that it will hit the fish ? Write with a

madam [21]

It is possible, but very slim. The fish will move before the spear goes through its body because the fish will sense danger and feel it hit the water and automatically move

6 0

3 years ago

A ball is thrown vertically upward, which is the positive direction. a little later it returns to its point of release. the ball

PilotLPTM [1.2K]

This motion of all can be divided in to two, first the upward motion and second downward motion.

In case of projectiles time taken for upward motion = time taken for downward motion.

So we have time taken for upward motion = 8.14/2 = 4.07 seconds

We have equation of motion, v = u+at, where v is the final velocity , u is the initial velocity, a is the acceleration and t is the time taken.

In case of upward motion

v = 0 m/s

t = 4.07 seconds

a = -9.8 $m/s^2$

Substituting

$0 = u - 9.8*4.07\\ \\ u = 39.886 m/s$

So initial velocity of ball = 39.886 m/s.

3 0

3 years ago

The Pasig Revolving Tower has an estimated height of 45.23 meters. How high is it in yard? ​

The Pasig Revolving Tower has an estimated height of 45.23 meters. How high is it in yard?