A 195 g oscillator has a speed of 125.0 cm/s when its displacement is 2.30 cm and 71.0 cm/s when its displacement is 5.30 cm .

What is the oscillator's maximum speed?

Show work please.

In the absence of air resistance, a projectile that lands at the elevation from which it was launched achieves maximum range when launched at a 45?angle. Suppose a projectile of mass m is launched with speed v0 into a headwind that exerts a constant, horizontal retarding force F? wind=?Fwindi^.

By what percentage is the maximum range of a 0.900 kg ball reduced if Fwind =0.600 N ?

Express your answer with the appropriate units.

*Answer cannot be 7.25 %, 6.8%, or 9% nor 6.3%

A) Ball made of wood and ball made of aluminum, of the same radius are placed into reservoir with water. Aluminum ball after sinking rests at the bottom, wooden ball floats. Which ball experiences greater buoyancy force?

B) Water flows through a pipe with speed of 18 m/s. Pipe suddenly widens to 3 times of its initial diameter. The speed of water in broader part of a pipe is:

1)What is The charge on 6 alpha particles?

2) Suppose the charge q₂ in the figure can be moved left or right along the line connecting the charges q₁ and q₃. Given that q = +21

A 60.0 kgkg skier on level snow coasts 183 mm to a stop from a speed of 1.70 m/sm/s .

a)Use the work-energy principle to find the coefficient of kinetic friction between the skis and the snow.

b)Suppose a 72.0 kgkg skier with twice the starting speed coasted the same distance before stopping. Find the coefficient of kinetic friction between that skier's skis and the snow.

A linear quadrupole consists of charges q at z = a , z=-a and 2q at z = 0.

a) Show that the system is equivalent to two dipoles with dipole moment qa and -qa in the positions a/2 and -a/2.

b) Find the potential V(r, θ)

c) Draw the equipotential surfaces.

A point charge of -1.0

A magnetic field of 0.080 TT is in the y-direction. The velocity of wire segment SS has a magnitude of 78 m/sm/s and components of 18 m/sm/s in the x-direction, 24 m/sm/s in the y-direction, and 72 m/sm/s in the z-direction. The segment has length 0.50 mm and is parallel to the z-axis as it moves.

Part A

Find the motional emf induced between the ends of the segment.

Express your answer with the appropriate units.

Part B

What would the motional emf be if the wire segment was parallel to the y-axis?

Express your answer with the appropriate units.

Please answer the following two questions:

3) Two cylindrical copper wires with a radius of 39 cm are connected to a battery and then they are connected across an incandescent light bulb and the light bulb turns on and is some brightness. If you took the same battery and connected coppers two wires which were a factor of 6 times longer than the first two wires to the same lightbulb so that the lightbulb was the exact same brightness as the first wires (it's not dimmer or brighter), what must be the radius of the second wires in cm?

4) Electricity is actually a very cheap form of energy. Suppose the cost of energy is 17.5 cents/kwh. If all the electrical energy used in purchasing $1 of electricity were converted to potential energy of raising 30,000 kg truck, how high above the ground would the truck be raised in m?

1.The space shuttle is in a 300km -high circular orbit. It needs to reach a 640km -high circular orbit to catch the Hubble Space Telescope for repairs. The shuttle's mass is 8.00

There are two point charges. One has a charge q1 = 1nC and is located at the point (1;2). The other has a charge q2 = 10 nC and is located at the point (7;-6).

A) What is the magnitude and the direction of the Coulomb force acting on the charge q1?

B) Where should the third charge be located in order to have zero net force acting on each charge? What is its magnitude?

Two charges are set on the x-axis 15.5 cm away from each other. The charges are -7.70 nC and 20.4 nC. Calculate the electric potential at the point on the x-axis where the electric field due to these two charges is zero.