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# What is the energy of a 15 pounds 2x4 traveling at 100 mph and how does it compare to a high power rifle bullet with an energy of 2339 ft-lbf?

# How fast does a 8MM rifle bullet travel?

@ 2000 FPS

# What type of energy a car is traveling 45 mph have?

Kinetic Energy

# What is the kinetic energy of a baseball traveling 90 mph?

A baseball weighs 145 grams 90 mph = 40.23 meters/sec KE = 1/2 mass x v2 = .5 x 145g x (40.23m/s)2 = 72.5g x 1618.45 m2/s2 = 117337.84 g m2/s2 = 117.34 kg m2/s2 = 117.34 J…oules

# How many mph does a 303 rifle bullet go?

I'm assuming you're talking about the .303 Savage (there's also a .303 British). It varies by a number of factors, with one of the foremost being barrel length. Generally spea…king, you can expect a velocity of around 2,090 ft/s (bullet velocities are usually expressed in ft/s rather than mph), but the actual results could vary greatly, again dependent on a number of factors.

# How fast does a bullet travel in mph?

761 mph (miles per hour) (The muzzle velocity of a bullet varies widely depending on the caliber, type of bullet, type of cartridge, the powder charge, and the gun barrel. Muz…zle velocities range from large caliber pistols as slow as 245 m/s, to high-powered rifles as fast as 1200 m/s, to tank rounds as fast as 1800 m/s. More .22 Long Rifle rounds have been produced than any other round.) Small short barreled pistols have low velocities around 340 mph. Long barreled rifles have velocities of 3,400 MPH Experimental rail guns have shot bullets at 7,602 MPH

# Compare and contrast electric energy and electric power?

Power is energy per unit time, or the rate at which electric energy is transformed. The amount of energy transformed is therefore power multiplied by time. (The above assumes …that power remains constant over the time considered. If not, advanced math - derivatives and integrals - must be used instead.)

# How does kinetic energy affect the stopping distance of a vehicle travelling at 30 mph compare to the same vehicle travelling at 60 mph?

Kinetic energy equals one half times mass times velocity squared. If the velocity is doubled, from 30MPH to 60 MPH, the kinetic energy for the same mass would be four times gr…eater.

# What is The kinetic energy of a 25-gram bullet traveling at 500 ms?

Dear Wiki Questioner, To calculate the kinetic energy of an object, we use the following equation: KE=(1/2) m v^2 Where KE is the object's kinetic energy in Joules m i…s the object's mass in kilograms and v is the object's velocity in meters per second So for your question, we first convert the mass of the bullet into kilograms so we can use it in our equation: 25g (1 kg/ 1000 g) = .025 kg The mass of the bullet is .025 kilograms! Now we plug the numbers into the equation and solve: KE = (1/2) .025 kg (500 m/s)^2 = 3125 kg m^2/s^2 = 3125 J So the kinetic energy of your bullet is 3125 Joules

# How does the acceleration of the bullet compare with the acceleration of the rifle?

Both objects accelerate, however due to Newton's 2nd law the acceleration of the rifle is less due to it's higher mass. Newton's second law F = ma In your question the force …(F) would be the same on both objects, but the mass (m) would be different and give a different answer for acceleration (a). This difference can be seen by looking at the effect of being on opposite sides of the rifle (ie kickback vs bullet hole)

# How far will a bullet form a high powered rifle travel under water?

Can't be answered without knowing the caliber, bullet weight and if it is fresh or salt water.

# Heat energy travels from an object with a high?

Temperature to an object with a lower temperature

Answered

# Does a car traveling at 60 mph carries four times the energy as the same car traveling at 30 mph?

NO

Answered

In Kinematics

# How many mph does a bullet travel?

It depends on several factors. Bullet can travel as slow as a few hundred feet per second up to several thousand feet per second. 1000 feet per second is about 682 MPH.

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In Geometry

# What is the kinetic energy of one cubic foot of water traveling at 5 mph?

Kinetic energy of moving water You must first determine the mass of the water, and you must also do some unit conversion. Since you know the volume of water, you m…ust first determine its mass. One cubic foot of water weighs about 62.4 pounds (pound-force, lbf). But that's weight, not mass. What is the mass of 62.4 lbf of water? Since m = W/g, we get 62.3/32.2 = 1.93 slugs. (Note that the density of water varies with temperature, so the weight of a cubic foot of water will vary somewhat with temperature. It is densest at four degrees Celsius, but I chose to use the density of water at room temperature -- about 20 degrees C.) Miles per hour (mi/hr) is not a convenient unit, so convert to feet per second. One mi/hr = 1.47 ft/s, so 5 mi/hr = 7.33 ft/s. Kinetic Energy, Ek, is proportional to mass and the square of the velocity. It is given by the formula Ek = (1/2)mv2. Ek = (1/2)(1.93)(7.33)2 = 51.85 ft-lb (foot-pounds) = 70.3 joules.

Answered

In Firearms

# How fast does a bullet from a rifle travel?

An AR -15 will push a 5.56 2800 feet per second!

Answered

In Science

# What is the kinetic energy of a 22500 lb truck traveling 55 mph?

The kinetic energy of a 22500 lb truck traveling 55 mph is 1/2mv2 is 3084.808kJ.