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Three charges are located along the x-axis. Charge A (+5.00x10-6 C) is located at the origin. Find the total force (and direction) on charge B
Two boxes of masses m and 2m are in contact with eachother on a frictionless surface and are pushed by a force F from the left
Sue and Sean are pushing on opposite sides of a 5.0kg box which is on a frictionless surface. What is Sean's force if the box accelerates away from Sue at 2.0m/s^2
Assume that the speed of light in a vacuum has the hypothetical value of 7.88m/s. What is the distance covered, according to the catcher who is standing at home plate
500 mL of a liquid with a coefficient of volume expansion of 205x10-6/oC fills to the brim a container that has a coefficient of volume expansion of 105x10-6/oC. how much of the liquid will overflow
A 972 kg car is going 20 m/s and the driver has to slam on his brakes to prevent an accident. what is the change in temperature of the brake pads and rotors
One cubic meter of water flowing over Niagara Falls in New York drops 92.8 meters. how much heat energy would the water have
A collimated beam of light whose wavelength is 495 nm falls on a screen containing a pair of long, Determine the spacing between the two third-order bright fringes
White light shines on a 118nm thick sliver of fluorite (n=1.43). What wavelength is most strongly reflected
The energy of the first excited state of a hydrogen atom is -0.34eV +/- 0.0004eV. What is the minimum average lifetime for this state
A 20,000 ohm resistor and a capacitor are connected in series and then a 15v potential differnce is suddenly applied across them. what is the capacitive value of the capacitor
An electron is in the ground state of an infinite square well. The energy of the ground state is E1 = 1.11 eV. What is the width of the square well
A light ray enters a rectangular glass slab (n = 1.5) at point A at an incident angle theta, what is the index of refraction of the unknown liquid
A refracting telescope has an objective lens of focal length 16.0in and eyepieces of focal lengths 12.0mm, What are the largest and smallest angular magnifications
A person can focus clearly only on objects between 37.5cmand 51.0cm from his eyes. Find the powers of the correcting contact lenses needed to correct his closeup vision and distant vision
A person can see clearly up close, but cannot focus on objects beyond 82.0cm . She opts for contact lenses to correct her vision. Is she nearsighted or farsighted
The technique known as potassium-argon dating is used to date old lava flows and thus any fossilized skeletons found in them, What is the age of a piece of solidified lava
A 115 mCi radioactive tracer is made in a reactor. When delivered to a hospital 16 hours later its activity is 95 mCi. What is the tracer's half-life
An LRC series circuit with R= 150 ohms, L= 25 mH and C= 2 mF is powered by an AC voltage source of peak voltage Vo= 340 V, Determine the peak current that flows in this circuit
A 5.0-m-wide swimming pool is filled to the top. The bottom of the pool becomes completely shaded in the afternoon, How deep is the pool
A certain ideal gas is kept at 350K in a container with a volume of 3 cubic meters. what is the average kinetic energy of the gas molecules
A Beryllium nucleus consists of 4 protons and 5 neutrons. What is the potential energy of the nucleus due to electrical forces
While snorkeling you hear a dolphin's sound as it approaches at 5.00 m/s. what is the actual frequency being emitted
a 0.50 uF capacitor is charged to a 12V battery. How much electrical potential energy is stored in the capacitor
A charge of 1 uC accelerates through a potential difference of 200V. What is the change in the electric potential of the charge