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1. A pitcher claims he can throw a 0.168 kg baseball with as much momentum as a 3.32 g bullet moving with a speed of 1.21584x10^5 m/s. What must be its speed if the pitcher's claim is valid? Answer in units of m/s.
2. This is an "explosion" question. A 30-06 caliber hunting rifle fires a bullet of mass 0.0115 kg with a velocity of 361 m/s to the right. The ri?e has a mass of 2.87 kg. What is the recoil speed of the rifle as the bullet leaves the rifle?Answer in units of m/s.
3. A revolutionary war cannon, with a mass of 1920 kg, fires a 17.2 kg ball horizontally. The cannonball has a speed of 133 m/s after it has left the barrel. The cannon carriage is on a flat platform and is free to roll horizontally. What is the speed of the cannon immediately after it was fired? Answer in units of m/s.
You are a manager of a venture capital fund and an inventor has pitched the following invention for your consideration...In order to improve the profitability of an optical product, he claims that he can develop an optical system which would focus..
A woman walks for 4 minute directly north with an average velocity of 6km/h; then she walks eastward at 4 km/h for 10 minute. Find her average speed for the trip
A circuit consists of a 215-Ω resistor and a 0.200-Hinductor. These two elements are connected in series across generator that has a frequency of 130 Hz and a voltage of 245 V.
A uniform solid disk of mass 3.05 kilogram and radius 0.200 meter rotates about a fixed axis perpendicular to its face. If the angular frequency of rotation is 5.92 rad/s, find the angular momentum of the disk when the axis of rotation passes throug..
an advertisement claims that a particular automobile can stop on a dime. what net force would actually be necessary to
A light ray strikes glass of an aquarium at an angle of 45 degree and emerges in water at an angle 31.7 degree. Evaluate the coefficient of refraction of water
A 3m platform of mass of 10kg is supported by a wire attached to its center with an angle of 40 degrees. A 22kg load sits on the platform with it's center 0.50 m from the outer end. Find the tension force in the wire
You want to nail a 1.3-kg board onto the wall of a barn. What happens to the force of static friction if you push against the wall with a force greater than that found in part A
A typical wall outlet voltage is 120 volts in the United States. calculate the number of turns on the secondary coil of the adapter transformer
a carnot engine whose low-temperature reservoir is at 19.7degc has an efficiency of 26.8. by how much should the
what happens to light of a particular frequency when it is incident upon the material that natural frequency is the same as the frequency of the light.
You have just landed on a planet. You take out a block of mass 245g , release it from rest from a height of 14.01m, What is the acceleration of gravity on this planet
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