Use the formula
Time = (distance) / (speed)
-- notice that the distance is given in km. Remember this when you write the speed. They should BOTH be in km it BOTH in meters.
-- for the speed, don't get distracted by the idea of 'music'. It's being sent to us by radio, so use the speed given for light/radio.
Because the speed is constant, then that means it's not accelerating. If it's not accelerating, the force is balanced, so the net force is always zero. The frictional force is the same as the force applied. Which is 85N.
Answer:
3.9 m
Explanation:
Assuming no energy losses then all kinetic energy is converted to potential energy
and making h the subject of the formula
where m is the mass of bike rider and bike, v is the velocity, and g is acceleration due to gravity. Taking g as 9.81 m/s2, v as 8.5 m/s then
Answer:
Whale is the largest mammal in the world
Explanation:
you you know that the DNA of parent depend upon her babies.
so due to the DNA characteristics will get big one to another