What the white 50 mph trimmed in black road sign mean?
It means that the speed limit is 50 miles per hour.
What is 68.75 feet per second in mph?
= 46.875 mph
or 46.88 if you want to retain the 4 digits of resolution (significant figures)
(I just copied "68.75 feet per second in mph", pasted it into my browser and it shows up directly!)
(Well done! But where would you be without your browser ? Does anyone know
how to calculate this anymore ?)
How does kinetic energy and potential energy switch?
work=change in kinetic energy, doing work on an object by moving it up increases that object's potential energy because it has the POTENTIAL to fall due to gravity. kinetic energy is lost in the movement of the object. However, throughout an entire closed system, the total energy in joules (or kinetic enery plus potential energy) does remain constant. this is useful because the initial energy and the final energy most be equal, and if thats true, then initial kinetic energy plus initial potential energy must equal final kinetic energy plus final potential energy. does that help?
What factors effect potential and kinetic energy?
Use the formula for kinetic energy: KE = (1/2) mv2 (one-half times the mass times speed squared). Clearly, the amount of kinetic energy depends both on the mass and on the speed of the object.
What is the Kinetic Energy of the trolley at the top of the ramp if a trolley of mass is 25Kg and is released from the top of a ramp which stands at a height of 3m?
Mass = 25 Kg
Height = 3 m
This is an energy problem. At the top of the ramp, the trolley is at rest and 3m above the base line.
Potential Energy = Weight * height
Weight = mass * acceleration due to gravity
Acceleration due to gravity = 9.8m/s^2
Potential Energy = 25 kg * 9.8m/s^2 * 3 m
Potential Energy = 735 Joules
When the trolley reaches the bottom of the ramp, all the potential energy has been converted to Kinetic energy.
Potential Energy = 735 Joules = Kinetic energy
Kinetic energy = ½ * mass * velocity^2
Kinetic energy = ½ * 25 * V^2 = 735 multiply 735 by 2 and divide by 25
V^2 = 58.8
V = 7.67 m/s
How long would in take to boat from Miami fl to st thomas usvi at 20 mph?
The distance from Miami, FL, to St. Thomas, USVI, is approximately 1,100 nautical miles. At a speed of 20 mph, which is about 17.4 knots, it would take roughly 63 hours of continuous travel. However, considering factors such as weather, navigation, and potential stops, the actual time could be longer.
How fast is desean Jackson in mph?
DeSean Jackson is known for his exceptional speed on the football field, reportedly reaching speeds of around 20.5 miles per hour during games. This speed makes him one of the fastest players in the NFL, particularly during his prime. His quick acceleration and ability to evade defenders have contributed significantly to his success as a wide receiver.
Kinetic is not static or at rest; it specifically refers to motion and the energy associated with moving objects. In contrast, potential energy, for example, is related to an object's position or state rather than its motion. Therefore, anything that lacks movement or is in a state of equilibrium does not fall under the definition of kinetic.
Does mass or speed effect more on kinetic energy?
Kinetic energy = 0.5 x mass x velocity^2. Your answer should be velocity.
What is the speed of a plane that travels at a rate of 450mph with a wind of r mph?
The speed of a plane traveling at a rate of 450 mph with a wind speed of r mph depends on the direction of the wind. If the wind is in the same direction as the plane, the effective speed would be 450 mph + r mph. Conversely, if the wind is against the plane, the effective speed would be 450 mph - r mph. If the wind is perpendicular, the speeds would need to be calculated using vector addition.
Yes, people have kinetic energy. Kinetic energy is the energy of motion, and our bodies are constantly in motion as we move and perform daily activities. This energy is generated from the movement of our muscles and body.
kinematics can be useful to work out realistic values for products going through design stages, although the product may not be produced yet we can gain a fairly accurate idea as what to expect from it. For example, you can apply kinematics to work out how a robotic arm will move.
How do you change the speedo from MPH to KPH on a Renault laguna privilege?
To change the speedometer from MPH to KPH on a Renault Laguna Privilege, turn on the ignition without starting the engine. Locate the button on the dashboard or the control stalk, often labeled with a speedometer icon. Press and hold the button for a few seconds until the display changes from MPH to KPH. Release the button, and the speedometer should now show speeds in kilometers per hour.
How do you make dinosaurs sick scribble knots?
In Scribblenauts, to make dinosaurs sick, you can create items or conditions that would typically induce illness. For example, you can summon a "virus," "poison," or "toxic waste" and place it near the dinosaur. Additionally, you might create something like "bad food" or "spoiled meat" for the dinosaurs to eat. Experimenting with various negative items can lead to different effects on the dinosaurs in the game.
Kinetic energy is the energy an object possesses due to its motion. It is calculated using the formula ( KE = \frac{1}{2}mv^2 ), where ( m ) is the mass of the object and ( v ) is its velocity. The faster an object moves or the more massive it is, the greater its kinetic energy. This form of energy plays a crucial role in various physical processes, from everyday activities to complex systems in physics and engineering.
In an exothermic reaction is potential energy converted to kinetic energy?
In an exothermic reaction, potential energy in the chemical bonds of reactants is converted into kinetic energy in the form of heat. The excess energy released during the reaction results in an increase in the kinetic energy of the surroundings, leading to a rise in temperature.
Stopping a vehicle with good brakes from 20 miles per hour under good conditions required about?
Stopping a vehicle with good brakes from 20 miles per hour under good conditions typically requires a distance of about 20 to 30 feet. This distance can vary based on factors such as the type of brakes, tire condition, and road surface. Generally, the stopping distance includes the reaction time of the driver and the braking distance itself.
Many people in many types of jobs not just physicists use kinematics ideas?
The correct answer is: True. Kinematics ideas are used in a number of different fields, including bio-mechanics (studying how artificial joints work), forensics ( studying how car crashes occurred), and even car racing (determining ideal engine settings, acceleration and braking rates, etc.).
An increase in temperature causes an increase in the kinetic energy of atoms in an element. For compounds, an increase in temperature also results in higher kinetic energy of the molecules or ions due to increased movement and collisions among the particles.
What quality of a bowling ball enables it to plow through a set of pins without slowing down?
The bowling ball does slow down. Momentum is conserved. It's just that it's a heavy ball so it has a lot of momentum, and the pins are light so overall the ball doesn't slow down enough for us to notice.
The kinetic energy of the vehicle when it is travelling faster is four times as great. It the brakes apply the same retardation and the friction from the tires on the road surface is unchanged then the stopping time will be four times as long.