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A proton is shot at 4 × 107 m/s toward a gold atom, with a mass 197 times that of the proton and deflects it straight back with 90% of its initial speed. What is the recoil speed of the gold nucleus?
What happens to the average kinetic energy of the particles in a sample of matter as the the temperature of the sample is increased
Which one of the following compounds is the most acidic. Please explain. a.) 1-Phenylethanol b.) 2-Phenylethanol c.)o-Ethylphenol d.) Ethyl phenyl ether e.) Nitrobenzene
The greatest discovery of my generation is that a human being can alter his life by altering his attitudes." Explain why you agree or disagree and give an example from your own experience.
Which product costs are reported in the external financial statements? Which costs are used for management decision making? Explain the difference.
Calculate the concentrations of all species in a 0.100 M H3PO4 solution given the following Ka: 7.5 X 10^-3 for H3PO4^- 6.2 X 10^-8 for H2PO4^- and 4.8 X 10^-13 HPO4^2
Dan is gliding on his skateboard at 3.0 m/s. He suddenly jumps backward off the skateboard, kicking the skateboard forward at 8.0 m/s. How fast is Dan going as his feet hit the ground
A car is moving on a flat horizontal circular track of radius 120 m. The speed of the car is constant, 15m/s. The mass of the car is 1200 kg. What force is keeping the car in the circle
Preparation of chromium complexes such as [Cr(en)3](ClO4)3, the typical starting material is CrCl3 6H2O. When combined with excess ethylenediamine in an appropriate solvent
Three identical train cars, coupled together, are rolling east at 1.6 m/s . A fourth car traveling east at 4.4 m/s catches up with the three and couples to make a four-car train. What is the speed of the five-car train
Critically analyse and evaluate the arguments for, and against, for each of the case studies. Which arguments do you consider to be more compelling
Two radio antennas operating at 6.00 Mhz are separated by 120.0m along a North-South line. Find the directions on the compass in which no radiation is sent out
A block of mass 2.1 kg, which has an initial velocity of 5.3m/s at time t = 0, slides on a horizontal surface. Determine the distance that the block slides as it comes to rest
a 72 kg block is hanging in the air suspended by a rope, tied up and over a frictionless pully, to a second block of unkown mass. calculate the mass of the block on top of the cliff
q1. a ranger in a national park is driving at 52 kmh when a deer jumps onto the road 86 m ahead of the vehicle. after a
A 1500 kg vehicle is making a circular turn on a flat roadway. What is the max speed the vehicle can travel before it starts to slide
The shaft shown below has a solid round cross-section & is supported by bearing at A & B. Find the location of maximum bending stress in the shaft.
In a car lift, the output plunger has a radius of 9cm. the weight of the plunger and the car is 21600N. What is the gauge pressure of the hydraulic oil used in the operating lift.
A ball rolls horizontally off a 45-m high cliff with vo=10 m/s. How far from the base of the cliff will it hit the ground, What is the angular acceleration of the tires
The conversion of an incident pressure wave to an electrical signal is called?
A 25 kg block slides down an inclined ramp. The ramp makes an angle of 165 degrees clockwise from the horizontal. What is the magnitude of the gravitational force on the block
When a certain spring is stretched by an amount x, it produces a restoring force of F(x) = ax=bx^2, where a and b are constants. How much work is done through an external force in stretching the spring by an amount D from its equilibrium length.
The dielectric to be used in a parallel-plate capacitor has a dielectric constant of 2.40 and a dielectric strength of 1.60 107 V/m. What is the minimum area the plates of the capacitor may have
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