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The horn issounded while the car is moving down the street. A bicyclistmoving in the same direction with one-third the car's speed hears afrequency of 415 Hz. What is the speed of the car? Is the cy
Use the length of one stellar day to find tangential (linear) speed of someone standing on the Earth's equator.
A car can decelerate at -4.80 m/s2 without skidding when coming to rest on a level road. What would be the magnitude of its deceleration if the road were inclined at 15° uphill? Assume the same
A spherical air bubble originating from a scuba diver at a depth of 18.0 m has a diameter of 1.0 cm. What will the bubble's diameter be when it reaches the surface?
Use conservation of relativistic energy and momentum to determine (a) the kinetic energy of the electron, and (b) the wavelength of the recoiling photon. Use p = E/c
You are asked to prepare a 0.8500 M solution ofaluminum nitrate. You find that you have only 50.00 g of the solid.
Calculate the average decelerating impact force per unit area, if a person falling with a terminal velocity of 62,5 m/s is decelerated to zero velocity over a distance of 1m.
What is the maximum amount of ethanol (in grams) that can be produced when 0.036 kg of ethylene (C2H4) and0.062 kg of steam are placed into the reaction vessel?
Skater A has a mass of 33.5 kg and travels in the +x direction at 2.75 m/s. Skater B has a mass of 75.5 kg and is moving in the +y direction at 1.77 m/s. They collide and cling together. Find the fi
If 26.23 mL of a standard0.1650 M NaOH solution is required to neutralize 32.52 mL ofH2SO4, what is the molarity of the acidsolution? M
In this position the lunch box is a distance 50.0 m from the center of curvature of the curve. a) What is the speed of the bus.
A student tries to raise a chain consisting of three identical links. Each link has a mass of 210 g. The three-piece chain is connected to a string and then suspended vertically, with the student ho
Why is it necessary to weigh to constant mass? Nettie's answer: because each element has its own mass and weight so you need to make sure that the solid is completely dry?
If 12mL of a 0.100M calcium chloride solution is diluted to2.00L by the addition of water, and if 2 drops( 0.100mL) of the final solution is used , how many chloride ions are in the sample?
If the box is a distance 1.83 m from the rear of the truck when the truck starts, how much time elapses before the box falls off the truck?
Two 10.0 mL samples of a Patient's Urine were taken. After adding a few drops of HNO3 and adding 5.0 mL ofAgNO3(excess silver) and filtering out the precipitateof AgCl. They obtained weights of 0
A student determined that the urine sample they were analyzing hada chloride concentration of 0.083 g/L (in a 10mL solution ofAgCl). What is the concentration in parts per million(PPM)?
A charge of 3.45 µC is uniformly distributed on a ring of radius 9.0 cm. Find the electric field strength on the axis at the following locations.
How much force must be applied tangentially at the end of a crank handle 0.500 m long to bring the stone from rest to 120 rev/min in 7.00 s?
Cerebellum, explain in brief why is the cerebellum is more developed in mammals that jump or fly? what is cell?
Two equal masses are connected by a light cord passing over a pulley of negligible mass. at the moment the system is in motion, with the right hand block moving downward at 1.2 m/s. what is the corr
A particle of mass m is released from a point between the two masses 20.0 cm from the 9.00 kg mass along the line connecting the two fixed masses. a) Find the magnitude of the acceleration of the pa
The heat of combustion for the sample of coal is 23kj/g. What quantity of coal (in grams) must be burned to heat 500 grams of water from 20 degrees celsius to 95 degrees celsius to 95 degrees celsiu
The density is 11.3 X 10^3 kg/m^3, and the density of water is 1.00 x 10 ^3 kg/m^3. Find the buoyant force on the wood and lead, and the mass of the lead.
Six parallel-plate capacitors of identical plate separation have different plate areas A, different capacitances C, and different dielectrics filling the space between the plates. Below is a generic