Explanation:
Remember Newton's Second Law.
If the force acting on both bikers is the same, we can look at the relationship between acceleration and mass.
If Biker 1 has a mass of 10kg and Biker 2 has a mass of 20kg, and both are being acted upon by a force of 100 N, let's see what that looks like.
So, given the same force, an object with GREATER mass will have less acceleration.
Answer:
Explanation:
The intensity of an electromagnetic wave can be expressed in terms of the magnetic field using the next relationship:
(1)
Now, let's define the relationship between power (P) and average intensity (I).
So we can calculate the power.
Finally, energy is the product of P times time, so:
I hope it helps you!
Answer:
0.784 m
Explanation:
The motion of the ball is a projectile motion, which consists of two independent motions:
- a horizontal uniform motion, with constant speed of
- a vertical accelerated motion, with constant acceleration towards the ground and initial position
By looking at the vertical motion, we can find the time t at which the ball hits the ground, which is the time t at which the vertical position y becomes zero:
And now we can use the horizontal motion to find the total horizontal distance traveled during this time interval:
The appropriate expression for the calculation of power by relating the angular energy in a given time.
In other words the instantaneous power of an angular accelerating body is the torque times the angular velocity
Where
Torque
Angular speed
Our values are given by
The angular velocity must be transformed into radians per second then
Replacing,
The average power delivered by the engine at this rotation rate is 211.1kW