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A 0.600 g sample of a nonvolatile yellow crystalline solid is dissolved in 24.6 g of benzene, producing a solution that freezes at 4.81oC. Find the molar mass of the yellow solid in g/mol.
A car is driven east for a distance of 49 km, then north for 21 km, and then in a direction 27° east of north for 26 km. Determine (a) the magnitude (in km) of the car's total displacement from
Only two forces act on an object (mass = 3.00 kg), as in the drawing. (F = 64.0 N.) Find the magnitude and direction (relative to the x axis) of the acceleration of the object.
Find the magnetic flux through the loop when L = 2.10 {rm cm}. Find the magnetic flux through the loop when L = 6.20×10-2 {rm cm}.
A small ball of mass 77 g is suspended from a string of length 41 cm and whirled in a circle lying in the horizontal plane. If the string makes an angle of 29? with the vertical, find the centripeta
If the magnetic field decreases to zero in a time of 0.52 s, what is the magnitude of the average emf induced in the loop?
Estimate the number of electrons present in a (neutral) 1.8 kg block of carbon.
A scaffold of mass 35 kg and length 5.8 m is supported in a horizontal position by one vertical cable at each end. A window washer of mass 86 kg stands at a distance d from the midpoint of the scaf
A purse at radius 2.00m and a wallet at radius 3.00m travel in uniform circular motion on the floor of a merry go round as the ride turns. They are on the same radial line. at one instant the accele
Four identical masses of mass 500 {rm kg} each are placed at the corners of a square whose side lengths are 10.0 {rm cm}. What is the magnitude of the net gravitational force on one of the masses,
A 1.00-g sample of a metal M (that is known to form M2+ ions) was added to 0.100 L of 0.500 M H2SO4. After all the metal reacted with some of the acid, the remaining acid required 0.0334 L of 0.500
What is the wavelength of an electromagnetic wave (in vacuum) of frequency 5.6 GHz?
A child goes down a playground slide with an acceleration of 1.10 m/s^2. Find the coefficient of kinetic friction between the child and the slide if the slide is inclined at an angle of 29.0 degree
Find the tension in the cable, the horizontal force exerted on the beam by the pole and the vertical force exerted on the beam by the pole.
A 50-Omega resistor, a 0.1-H inductor, and a 10-mu F capacitor are connected in series to a 60-Hz source. The rms current in the circuit is 3 A. Find the rms voltage across the resistor, the induct
Which of the following statements about pure water is true?
A laser beam is incident on a 34°-56°-90° prism perpendicular to one of its faces, as shown in the figure below. The transmitted beam that exits the hypotenuse of the prism makes an ang
The International Space Station makes 15.65 revolutions per day in its orbit around the earth. Assuming a circular orbit, how high is this satellite above the surface of the earth?
A small steel ball bearing with a mass of 22.0 g is on a short compressed spring. When aimed vertically and suddenly released, the spring sends the bearing to a height of 1.39 m. Calculate the hori
A car moving at 10 m/s crashes into a barrier and stops in 0.50 s. There is a 20 kg child in the car. Assume that the child's velocity is changed by the same amount as the car's in the same time pe
A m2 = 4.72 kg mass is connected by a light cord to a m1 = 2.71 kg mass on a smooth surface. Assuming that the cord does not slip on the pulley, find the acceleration of m1.
A child goes down a playground slide with an acceleration of 1.40 . Find the coefficient of kinetic friction between the child and the slide if the slide is inclined at an angle of 31.0 below the h
A 7.50-L container holds a mixture of two gases at 33 °C. The partial pressures of gas A and gas B, respectively, are 0.227 atm and 0.852 atm. If 0.220 mol of a third gas is added with no change
What is the momentum of a photon of lowest energy in the Balmer series of hydrogen?
A rocket of total mass M and with burnout mass 0.20 M attains a speed of 3 200 m/s after starting from rest in deep space. What is the exhaust velocity of the rocket?