0
Kinematics
Kinematics is the study of how a body moves. This includes linear motion, angular motion, and rotational motion.
3,459 Questions
What is the maximum mph for a 1994 seadoo xp?
a seadoo can go 69 mph on flat water but with the water choopy it can go 65 mph
What provides the energy to break the connection between actin and myosin?
ATP, of course.
When the myosin head extends towards the actin thin filament it has in it's active site ADP and P +. So, when the stroke is over the ADP and P+ fall out and are replaced by ATP, which immediately metabolizes to ADP and P +.
Is the gravity value positive or negative when an object falls on the ground?
The force of gravity is positive; there is no negative gravity.
What happens when pontential energy ins't completely converted to kinetic energy?
If potential energy is not completely converted to kinetic energy, some of the potential energy may be transformed into other forms of energy such as heat, sound, or light. This can occur due to factors like friction or inefficiencies in the system. As a result, the total mechanical energy of the system may not remain constant, and some energy may be lost to other forms.
Would a radio controlled car produce an average velocity of zero?
For the purposes of this explanation, velocity will be given in m/s. If it's starting position is the same as its stopping position, the radio controlled car will have an average velocity of zero meters per second. This is because average velocity is displacement/time interval. Displacement is change in position and is a vector quantity, which has magnitude and direction. Average velocity is the displacement/time interval, and is also a vector quantity, including the magnitude of the speed and its direction. If you start and stop walking at the same position, your displacement is 0m, even if you walked a distance of 100 miles, and your average velocity would be 0m/s.
Refer to the related link below for an illustration.
How fast in mph is 22 feet per second?
There are 5280 feet in a mile, and 3600 seconds in an hour. Thus:
22 ft/s = (22/5280)(3600) = 15 mph.
What is the escape velocity of planet Jupiter in miles per hour?
The escape velocity of planet Jupiter is: ~133,097.71 miles per hour.
What happens to a crash test dummy in a 15 mph crash if the dummy is not wearing a seatbelt?
In a 15 mph crash without a seatbelt, the crash test dummy would experience the full force of the impact which could result in injuries such as head trauma, whiplash, or broken bones. Without the seatbelt to restrain the dummy's movement, it may also be thrown forward or out of the vehicle, increasing the risk of serious harm or death.
At 0 Kelvin, all molecular motion stops, so the kinetic energy of the vapor molecules would be zero. Therefore, the kinetic energy of the vapor would be reduced to zero.
How fast do you need go to walk a 5k in 40 minutes?
For a top athlete it should take about an hour. A beginner prob an hour and a half
How do you find distance with final velocity and minimum acceleration?
vf2 = vi2 +ad, where vf is the final velocity, vi is the initial velocity, a is acceleration, and d is displacement. In physics, velocity is the change in position of an object over a given time interval, and change in position is displacement, rather than distance.
To find displacement, manipulate the equation in the following manner. Assume vi is zero.
vf2 = 0 + 2ad
vf2 = 2ad
vf2/2a = 2ad/2a
vf2/2a = d
To convert miles per hour to kilometers per hour, you can multiply by 1.60934. Therefore, at 150,000 mph, you would be traveling at approximately 241,402 kilometers per hour.
Does kinetic energy of photo electron depend upon intensity of light?
No, the kinetic energy of a photoelectron is primarily determined by the frequency of the incident light (photon energy), not the intensity of the light. Increasing the intensity of light will increase the number of photoelectrons emitted but will not change their individual kinetic energies.
How fast is the fastest woman in mph or km and hour?
The fastest woman in recorded history is Florence Griffith-Joyner, who reached a top speed of 10.49 meters per second during her 100m world record run in 1988. This equates to approximately 37.6 km/h or 23.4 mph.
What is the effect of acceleration on an object which is not moving?
An object which is not moving is not experiencing any acceleration, other than the acceleration due to gravity, which, along with mass gives it its weight. The upward force (normal force) acting on the object is equal to but opposite to its weight, and all of the forces acting on the objects are in equilibrium so the net force is zero Newtons.
Will equation of motion be valid for non uniform motion?
Newton's first law of motion states that momentum is a property of a mass system
that is conserved as long as no net force is applied on it.
If the question refers to Newton's second law of motion, the answer is yes.
Is second equation of motion valid for non uniform acceleration?
Yes. It just has to be remembered that the equation is describing a balance between
a force and the increment of momentum of the system per time unit on which the force is being applied "at a given instant t".
For a given system with constant mass m, we can write Newton's 2nd law of motion
as:
F(t) = m∙a(t)
where force F(t) and acceleration a(t) are a function of time (notice that if the force
is constant during time applied, acceleration results constant or uniform).
If you know how the force is varying in time (function F(t)), then you know the
function of acceleration in time: a(t) = F(t)/m
Why achanging velocity cannot maintaining constant speed?
Velocity is a vector quantity that includes both speed and direction. If the velocity is changing, it means either the speed, direction, or both are changing. Therefore, if the velocity is changing, the object cannot maintain a constant speed.
Why not all potential energy is converted to kinetic energy in roller coaster?
Not all potential energy is converted to kinetic energy in a roller coaster because some of the potential energy is lost due to friction, air resistance, and other forms of energy dissipation. This loss of energy results in not all of the potential energy being transformed into kinetic energy.
If the speed of the car becomes NV, with N > 1, the minimum distance it can be stopped over remains the same at S. This is because the stopping distance is primarily determined by factors like initial speed, braking capacity, and road conditions, rather than the multiple of the speed.
