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A fire extinguisher has a pressure of 10. atm. at 25degC. What is the pressure in atmospheres if the fire extinguisher is used ata temperature of 75degC?
A generator has a 170-turn square coil, 4 cm on a side. A) Find the peak emf in this coil when it's rotating at 105 Hz in Earth's field, B = 5 x 10^-5 T.
Compare (a) the distance traveled during the time of application of the forces,(b) velocities at the end of the time periods, and (c) accelerations at the end of the time periods in the two cases. F
A basketball is inflated to 9.0 psi (pounds per square inch) above atmospheric pressure of 14.7 psi ( a total pressure of 23.7 psi).The diameter of the basketball is 10 inches. So,
Suppose an ant walks counterclockwise on the unit circle from the point (-1,0), to the end point of the radius that forms an angle of 5.6 radians with the positive horizontal axis. How far has the
A 2800 kg space vehicle, initially at rest, falls vertically from a height of 3000 km above the Earth's surface. Determine how much work is done by the force of gravity in bringing the vehicle to the
Derive the equation for the hyperbola with center c(h,k), vertices v h+- a,k) and foci f(h+c,k) Equation in standard form.
If the neutralization a 0.4321 g sample of KHP required 33.mL of sodium hydroxide, what was the molarity of the sodium hydroxide solution?
A 40 N horizontal force pushes on a 4.0 kg mass resting on a horizontal surface. The surface exerts a friction force of 24 N against the motion. The acceleration of the 4.0 kg mass is ____ m/s^2.
Convey the following from general to standard form. y=x^2-7x+10, y=3x^2-13x-17 Give the transformational form of the equation , given the following mapping notation. (x,y)-->(x+5,y+9).
Neglecting gravity, estimate the average force of air resistance during a pitch, if the distance between the plate and the pitcher is about 15m .
How many moles of each reactant are nedded to produce 4.00moles of HF?How many grams of F2 are required to react with 1.50 moles of NH3?
What should be the spring constant k of a spring designed to bring a 1300kg car to rest from a speed of 95 km/h so that the occupants undergo a maximum acceleration of 5.0g?
How many moles of glucose are required to form 124 g of ethanol?How many grams of ethanol would be formed from the reaction of 0.240 kg of glucose?
What is the y-component of the magnetic force on the first particle due to the second?
Use the remainder theorem to find the remainder when f(x) is divoded by x-3. then use the factor theorem to determine whether x-3 is a factor of f(x).
The Paschen Series of lines arise from electronic transitions to energy level n=3. Calculate the frequency in Hz of the light emitted by an electron falling from n=4 to n=3.
A projectile spends a total of 20 seconds in the air. It reaches a peak height of 8 meters. How long does it take to reach its peak height? The projectile has a range of 80 meters. What is its horiz
A 2.0-kg object has a velocity of 4.0 i m/s at t = 0. A constant resultant force of (2.0 i+ 4.0 j) N then acts on the object for 3.0 s. What is the magnitude of the object's velocity at the end of t
For hydrogen, ionization energy would correspond to moving the electron from n=1 to infinity,Calculate the ionization energy of one atom of hydrogen in joules.
A 2.0-kg object moving 3.0 m/s strikes a 1.0-kg object initially at rest. Immediately after the collision, the 2.0-kg object has a velocity of 1.5 m/s directed 30? from its initial direction of moti
A plance c is flying directly from one island to another at an elevation of 3200 ft. What is the distance between the two islands? Estimate your answer to the nearest foot.
Calculate the wavelengths of the lines in the Balmer Series from the values of N(initial) and N(final) for hydrogen. Give the wavelength in nanometer.
Find the equation of a rational function f(x) that satisfies the given conditions: vertical asymptote : x= -1, horizontal asymptote: y= 2.
A truck moving at 80mi/hr passes a police car moving 100mi/hr headed in the opposite direction. If the frequency of the siren relative to the polive car is 500 Hz, what is the frequency heard by an