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An object is placed 45 cm from a concave mirror of radius 92 cm.
(a) Find the location of the image. (Enter in cm. Use a negative number if the image is behind the mirror) cm
(b) What is the magnification of the mirror? Is the image real or virtual? Is the image upright or inverted?
A 120-V motor has mechanical power output of 3.60 hp. It is 87.0% efficient in converting power that it takes in by electrical transmission into mechanical power. Find the current in the motor
Two tugboats pull a disabled supertanker. Each tug exerts a constant force of 1.50×106\rm N , one at an angle 10.0 degrees west of north, What is the total work done by the two tugboats on the supertanker
a pure sample of atomic gas has atoms with six principal quantum numbers that can yield several emission lines. what is
calculate the fraction of which is submerged when the cylinder floats in alcohol. Fraction of Vwood submerged.
A 37-kg block of ice at 0° C is sliding on a horizontal surface. The initial speed of the ice is 6.2 m/s, Determine the mass of ice that melts into wate
A 840-kg car starts from rest on a horizontal roadway and accelerates eastward for 5.00 s, What is the average force exerted on the car
Hydrogen under p = 5 atmospheres and T = 20 C is warmed isobarically until its volume increases from 1 to 2 liters. Calculate the absorbed heat.
A skier starts from rest at the top of a hill that is inclined at 12.0° with the horizontal. The hillside is 180.0 m long, and the coefficient of friction between the snow and the skis is 0.0750. At the bottom of the hill, the snow is level and the c..
An object at rest in a coordinate frame suddenly explodes into three parts of equal mass m. Two parts move away at right angles to each other and with equal speeds |v|.
At t1 = 5.00 s, the acceleration of a particle moving at constant speed in counterclockwise circular motion is a1=(2m/s^2)i + (9m/s^2)j At t2 = 6.00 s (less than one period later), the acceleration is a2= (9m/s^2)i - (2m/s^2)j The period is more t..
A sledge loaded with bricks has a total mass of 17.4 kg and is pulled at constant speed by a rope inclined at 21.0° above the horizontal. What is the tension in the rope
An electric eel develops a potential difference of 490V , driving a current of 0.85A for a 1.0 ms pulse. Find the total energy of this pulse
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