What is the average acceleration of bullet through board

Assignment Help Physics
Reference no: EM1367161

Q. An indestructible bullet 2 cm long is fired straight through a board that is 10 cm thick. The bullet strikes the board with a speed of 480 m/s and emerges with the speed of 265 m/s. (To simplify, assume that bullet accelerates only while the front tip is in contact with the wood.)

What is the average acceleration of bullet through board?

Q. A 64 Ω resistor is connected in parallel with a 115 Ω resistor. This parallel group is connected in series with a 20 Ω resistor. The total combination is connected across a 15V battery.(a) Find the current in the 115 Ω resistor.(b) Find the power dissipated in the 115 Ω resistor.

Reference no: EM1367161

Questions Cloud

Calculate the euro price of the dollar : When the Euro was 1st issued it hit the market at $1.17/€ on 1 Jan 2001. Calculate the Euro price of the dollar when the Euro debuted?
In which section of the pipe is pressure higher : Water flows at a speed of 1.7 m/s throughout a horizontal pipe having a circular cross section 5 cm in diameter. The pipe widens to a diameter of 14 cm. Treat the water as an idea fluid.
Attributes of dysfunctional family communication patterns : Explain some attributes of dysfunctional family communication patterns and recognize some specific strategies you can use for positively influencing or changing family communication patterns.
Statements to find array elements are null or not : Write down statements needed to find whether any of the array elements are null or refer to the empty String. Set the variable hasEmpty to true.
What is the average acceleration of bullet through board : A 64 Ω resistor is connected in parallel with a 115 Ω resistor. This parallel group is connected in series with a 20 Ω resistor. The total combination is connected across a 15V battery.(a) Find the current in the 115 Ω resistor.(b) Find the power ..
Limit exports to the united state : In 1981, the United State negotiated a contract with the Japanese. The contract called for Japanese auto firms to limit exports to the United State.
Determining maximum amount of profit : What is the profit-maximizing price of carpets? What is the maximum amount of profit that the firm can earn selling carpets?
Find out the radius r of the tire : A stone has a mass of 4.00 x10-3 kg and is wedged into the tread of an automobile tire, as the drawing shows. The coefficient of static friction between the stone and each side of the tread channel is 0.76.
Positive or negative impact on health care delivery : There is considerable discussion of whether or not legal and legislative processes have had a positive or negative impact on health care delivery at local, state, and national levels. What do you think?

Reviews

Write a Review

Physics Questions & Answers

  How much work is completed against the body

If a system in equilibrium with two masses m1 and m2 are placed at distances d1 and d2 from the fulcrum, then f1 d1= f2 d2. Is this the same as saying that m1 d1= m2 d2? Give details.

  What is the electric flux through the top face of the box

In soccer, a speed record was set for kicking a soccer ball at 43m/s. If the soccer player kicked the ball from ground level at an angle of 30° from the horizontal, what would be the flight time of the soccer ball? Assume that air resistance is ne..

  With what speed does it head toward the goal

The suspended 2.82 kg mass on the right is moving up, the 2.2 kg mass slides down the ramp, and the suspended 8.1 kg mass on the left is moving down. There is friction between block and ramp. What is the acceleration of a three block system.

  Compute centripetal acceleration of the car

A 53 kg woman and a 80 kg man stand 13 m apart on frictionless ice. If they hold on to two ends of a rope, and the man pulls on the rope so that he moves 3m, how far from the woman will he be now.

  What will be the induced emf magnitude in the short coil

A 79 kg person sits on a 3.7 kg chair. Each leg of the chair makes contact with the floor in a circle that is 1.3 cm in diameter. Find out the pressure exerted on the floor by each leg of the chair, suppose the weight is evenly distributed.

  What is distance of a sample of blood from the rotation axis

What is distance of a sample of blood from the rotation axis

  Calculate the dc voltage

Calculate the dc voltage applied to the circuit.

  State the answer to two important figures

While remodelling your garage, you need to temporarily splice, end to end, an 80 m long copper wire that is 1.130 mm in diameter with a 49.0 m long aluminium wire that has the same diameter. The maximum current in the wires is 2.00 A.

  What is the final temperature

A test rocket is fired vertically upward from a well. A catapult gives it an initial speed of 80.6m/s at ground level. Its engines then fire and it accelerates upward at 3.80 m/s2 until it reaches an altitude of 930m. At that point its engines fai..

  What is speed of the car just before it lands safely

What is speed of the car just before it lands safely

  What are the ramifications of failing to meet the challenge

Utilizing an information provided in your course text, complete the "Motivation Concepts Table." This table will serve as a convenient quick reference for the remainder of the course.

  If the time for an electron to stop is on the order

A stockroom worker pushes a box with a mass 11.2kg on a horizontal surface with a constant speed of 3.50m/s. coefficient of kinetic friction between the box and the surface is 0.20.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd