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A car with mass of 1000.0 kg accelerates from 0 m/s to 40.0 m/s in 11.0 s. Ignore air resistance. The engine has a 23% efficiency, which means that 23% of the thermal energy released by the burning gasoline is converted into mechanical energy.
(a) What is the average mechanical power output of the engine?
(b) What volume of gasoline is consumed? Assume that the burning of 1.0 L of gasoline releases 44 MJ of thermal energy.
Two coils of wire are placed close together. Initially, a current of 2.27 A exists in one of the coils, What is the mutual inductance of the two-coil system
Coherent light from a sodium-vapor lamp is passed through a filter that blocks everything except for light of a single wavelength. find the wavelength of the light that falls on the slits
Astrophysicists in the 1960s tried to explain the existence and the structure of pulsars - extremely regular astronomical sources of radio pulses whose periods ranged from seconds to milliseconds. Estimate the rotation rate of the Sun
q1. a rifle that shoots bullets at 420 ms is to be aimed at a target 49.0 m away. if the center of the target is level
You are designing a diving bell to withstand the pressure of seawater at a depth of 260m. What is the gauge pressure at this depth
As observed on earth, a certain type of bacteria is known to double in number every 22.9 hours. Two cultures of these bacteria are prepared, how many bacteria are in the culture on the rocket
The orbits of synchronous communications satellites have been chosen so that viewed from Earth they appear to be stationary. Find the radius of the orbits
A container of volume V is divided by partitions into three parts containing one kilomole of helium gas, Calculate the kilomole fraction and the partial pressure of each gas in the mixture
A hot air balloon is a bit like a bubble in water. It rises in air when the mass of relatively cool surrounding air displaced by the balloon is greater than the mass of the balloon, What is the buoyancy
a piano turner hears one beat every 1.1 second when trying to adjust two strings, How far off in frequency is the other string
Waves travel along a 100-m length of string with a mass of 55 g, which is held taut by a tension of 75 N. What is the speed of the waves
Given series of equipotentials Allow a charge to move through three displacements s ,s1,s2 . Calculate the electric field component along each displacement
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