### What are the initial and final kinetic energies of system

Assignment Help Physics
##### Reference no: EM13515834

On a touchdown attempt, a 95.0 kg running back runs toward the end zone at 3.75 m/s. A 111. kg linebacker moving at 4.10 m/s meets the runner in a head on collision. If the two players stick together,

a) What is their velocity immediately after the collision?

b) What are the initial and final kinetic energies of the system?

c) What caused the difference?

#### Questions Cloud

 Evaluate the amout of coke needed to be burned : Calculate the amout of coke needed to be burned in order to heat 500kg of water from 20 celsise to 50 celsise/ The heat of combustion of cock is 36.15kj/g Describe the interest of conserving fuel and funds : In the interest of conserving fuel and funds, you keep the thermostat of your home/apartment at 15°C (59°F) throughout the winter months. You are able to tolerate this condition if the outside (ambient) air temperature exceeds -10°C (14°F) but fee.. H and o is analyzed to determine the molecular weight : A sample of unknown material containing C,H,& O is analyzed to determine the molecular weight. A 1.25g sample is burnt and produces 1.72g of CO2. How long does it take you to reach the bottom of the slide : You go to the playground and slide down the slide, a 3.0 meter long ramp at an angle of 36 degrees with respect to horizontal. How long does it take you to reach the bottom of the slide What are the initial and final kinetic energies of system : On a touchdown attempt, a 95.0 kg running back runs toward the end zone at 3.75 m/s. What are the initial and final kinetic energies of the system Explain an electron in the hydrogen atom makes a transition : An electron in the hydrogen atom makes a transition from an energy state of principle quantum number n to the n=1 state. If the photon emitted has a wavelength of 95nm, what is the value of n How to compute the ph in the solution formed by naoh : Calculate the pH in the solution formed by adding 10.0 mL of 0.050 M NaOH to 40.0 mL of 0.0250 M benzoic acid (HC7H5O2, Ka=6.3X10-5 A characteristic of stock index futures is : If a stock index is 400.00, how many associated futures contracts (multiplier of \$250) must be sold to hedge a \$10 million stock portfolio with a beta of 1.10? State the ph of the equivalence points : Find the pH of the equivalence points and the volume of 0.0372 M NaOH needed to reach it in titrations of 28.9 mL of 0.0850 M H2SO3

### Write a Review

#### Obtain the mass of the bar

multiple-Concept Example 11 deals with a situation that is similar, but not identical, to that here. When 4710 J of heat are added to a 0.261-m-long silver bar, What is the mass of the bar

#### What does an ideal voltmeter read

A complete series circuit consists of a 12.5V battery, a 3.70ohm resistor, and a switch. What does an ideal voltmeter read when placed across the terminals of the battery

#### Compute the speed of toy car after the collision

A child in a boat throws a 6.0 kg package out horizontally with a speed of 10m/s. Compute the velocity of the boat immediately after, assuming it was initially at rest. The mass of the child is 29kg and that of the boat is 55.0 kg. Overlook water ..

#### Find the speed of a satellite in a geosynchronous orbit

Communications satellites are placed in a circular orbit where they stay directly over a fixed point on the equator as the earth rotates. find the speed of a satellite in a geosynchronous orbit

#### Question1 two wires hold up a massive beam of length l16 m

question1 two wires hold up a massive beam of length l16 m and mass 330 kg. a box of mass 220 kg hangs from a wire that

#### What is the system''s rotation period

the two stars in a binary star system have masses 1.7 x 10 ^ 30 kg and 5.8 x 10 ^ 30kg. They are separated by 2.1 x 10 ^ 12m. What is the system's rotation period, in years

#### Find the magnetic field amplitude of an electromagnetic wave

What is the magnetic field amplitude of an electromagnetic wave whose electric field amplitude is 15V/m

#### Determine the value of the spring constant

A block of mass m = 600 g is released from rest and slides down a frictionless track of height h = 59.9 cm. What is the value of the spring constant k

#### Compute the magnitude of the gravitational force

A 5.9-kg rock and a 6.6 × 10-4-kg pebble are held near the surface of the earth. Determine the magnitude of the gravitational force exerted on each by the earth

#### Compare the forces from each ball on the other

Two billiard balls of equal mass and speed moving against each other collide and bounce backwards away from each other. compare the forces from each ball on the other

#### Find the period of the boys motion

A 49.5 kg boy jumps on a 4.95 kg pogo stick with spring constant 3650 N/m, Find the period of the boy's motion

#### Calculate the nonconservative work

Calculate the nonconservative work