Kinematics

Yes. The angle is the direction of the vector, so if the angle changes, the direction changes.

The acceleration of a car moving with uniform acceleration will remain constant. This means that the rate of change of its velocity will be consistent over time, resulting in a steady increase or decrease in speed.

You can travel 325 miles in five hours driving at a speed of 65 miles per hour (65 mph x 5 hr = 325 miles).

It really depends on the draw weight and weight/type of arrows used, but a speed of about 150-190 feet/sec can be expected from most longbows.

The formula for calculate the energy with in a moving object is :1/2mv.v solution:m=2000 kg v=70 m/h = 70 x 1609.3 m/hr = 112649 m/hr = 112649 / 3600 m/s = 31.3 ms-1 energy=1/2 x 2000 x 31.32 Js-1 = 979690 J = 979.69 kJ

Mach is the speed of sound in that medium, and is known as Mach 1. It will vary according to pressure and temperature. [More correctly, it is the dimensionless number relating the speed of an object to that of sound in that medium.] Mach does not have units associated with it, such as mph or kmph.

112 kph are equal to 69.6 mph

60 kilometers (km) per hour is equal to about 54.7 feet per second.

To find the speed, first convert 7 minutes and 35 seconds to seconds only (455 seconds total). Then, divide the distance (2000 meters) by the time (455 seconds) to get the speed: 2000 meters / 455 seconds = 4.40 meters per second.

At the top of the track, the roller coaster has mostly potential energy due to its height above the ground. As it starts back down, this potential energy gets converted into kinetic energy as the coaster picks up speed.

Conversions first.

124 grains (1 gram/15.43 grains)(1 kilogram/1000 grams)

= 0.008036 kg

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A projectile is considered to be in free fall when the only force acting on it is gravity. This means that the object is not being propelled or pushed by any external forces, and it is only subject to the force of gravity causing it to accelerate downward.

1mi = 1.6km

35km/h x 1mi/1.6km = 22mi/h (rounded)

301 kilometers per hour is 187.03 miles per hour.

To convert 750 feet per second to miles per minute, first convert feet to miles by dividing by 5,280 (since 1 mile = 5,280 feet). Then convert seconds to minutes by dividing by 60 (since 1 minute = 60 seconds). So, 750 feet per second is equal to 0.142 miles per minute.

The friction of running car tires on a road primarily causes kinetic energy to be converted into heat energy. This heat energy is a result of the resistance that occurs between the tires and the road surface, ultimately leading to a loss of energy in the form of heat.

8 miles per hour is approximately equal to 12.87 kilometers per hour.

Sound is the movement of a medium at frequencies we can hear. As it always involves movement of a medium, either a solid, liquid or gas to be transmitted it will involve kinetic energy at times.

Note that kinetic energy is the energy stored in a moving mass. Sound waves carry energy with a combination of both kinetic and potential energy. There are two moments in every cycle where there is no movement and therefore no kinetic energy. These two points are at the upper and lower peaks of the wave.

a seadoo can go 69 mph on flat water but with the water choopy it can go 65 mph

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 +.

The force of gravity is positive; there is no negative gravity.

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.

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.

There are 5280 feet in a mile, and 3600 seconds in an hour. Thus:

22 ft/s = (22/5280)(3600) = 15 mph.