<span>covex object and concave eyepiece.</span>
Answer:
The force is 
Explanation:
From the question we are told that
The volume of blood ejected is 
The velocity of the ejected blood is 
The mass density of blood is 
The heart rate is 
Generally the average force exerted is mathematically represented as
=> 
=>
Answer:
A rise in temperature increases the kinetic energy and speed of particles; it does not weaken the forces between them. The particles in solids vibrate about fixed positions; even at very low temperatures. Individual particles in liquids and gases have no fixed positions and move chaotically.
Explanation:
The acceleration of gravity on Earth is 9.8 meters per second every second. So
in 1.1 second of falling, an object gains (9.8 x 1.1) = 10.78 meters per second of
downward speed.
The balloon was already falling at 5 m/sec when the time began, and it gained
another 10.78 m/sec on the way. So at the end of 1.1 second, its downward
speed was (5.0 + 10.78) = 15.78 m/sec.
Its velocity was 15.78 m/sec downward.
