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A bear, awakening from winter hibernation, staggers directly northeast for 15 m and then due east for 15 m. Show each displacement graphically and graphically determine the single displacement that
When 200g of aluminum at 100° c is dropped into aluminum calorimeter of mass 120 g and containing 150g kerosene at 15° C, the mixture reaches at temperature of 50° C. What is the specifi
A 6.0 kg block is placed near the top of a frictionless ramp, which makes an angle of 34° to the horizontal. A distance d = 1.3 m away from the block is an unstretched spring with k = 2800 N/m.
The first place is between the charges and is 4.4 cm to the left of the negative charge. The second place is 8.4 cm to the right of the negative charge. (a) What is the distance between the charges?
Suppose a spacecraft is sent to study an object somewhere in our Milky Way galaxy. This spacecraft finds out that the object has a radius of 25,559 km and a mass of 8.6810 x 1025 kg. Assuming the ob
A small sample of water from Sludgeport Harbor contains 0.8372 g/cm3 of a certain pollutant. How many kilograms of this pollutant are contained in each cubic meter of water from the harbor?
One end of a uniform 4.0 m long rod of weight is supported by a cable. The other end rests against a wall, where it is held by friction. The coefficient of static friction between the wall and the r
If the freezing compartment is at temperature TL and the outside air is at temperature TH (both temperatures measured in kelvin), and assuming the efficiency of a Carnot refrigerator, what is the ma
Location A is 2.50 m to the right of a point charge q. Location B lies on the same line and is 4.80 m to the right of the charge. The potential difference between the two locations is VB - VA = 45.0
Compute the order of magnitude of the mass of a bathtub half full of water. (bathtub. Assume the tub measures 1.3 m by 0.5 m by 0.3 m.)
Find the edge dimension of each cube, which represents an estimate for the spacing between atoms.
What is the horizontal distance traveled by the hammer between the instant it leaves the roof and the instant it hits the ground?
A swimmer heads directly across a river, swimming at 1.00 m/s relative to the water. She arrives at a point 47.0 m downstream from the point directly across the river, 79.0 m wide. What is the speed
The velocity of a diver just before hitting the water is -9.6 m/s, where the minus sign indicates that her motion is directly downward. What is her displacement during the last 0.82 s of the dive?
A cylindrical container with a cross-sectional area of 62.2 cm2 holds a fluid of density 786 Kg/m3. At the bottom of the container the pressure is 118 kPa.
A 18.0 -m length of wire consists of 9.0 m of copper followed by 9.0 m of aluminum, both of diameter 1.3 mm. A voltage difference of 95 mV is placed across the composite wire. A) What is the total r
A spherical conductor with a total charge of 12 micro-Coulombs has a radius of 6 cm. What is the magnitude of the electric field at a point 31 cm from the center of the conductor in 1 x 106 N/C?
Location A is 2.70m to the right of a point charge q. Location B lies on the same line and is 4.10m to the right of the charge. The potential difference between the two locations is Vb - Va = 45.0V
(a) the projected area over which the planet absorbs light from Gliese 581 and (b)the radiating area of the planet. (c) If an average temperature of 287K is necessary for life to exist on Gliese 581
A 76 cm diameter loop is rotated in a uniform electric field until the position of maximum electric flux is found. The flux in this position is measured to be 3.12 × 105 N · m2/C. What
What is the potential difference between the starting point and the top point of the trajectory?
A point charge of 7.0 x 10-9 C is located at the origin. How much work is required to bring a positive charge of 3.0 x 10-9 C from infinity to the location x = 30.0 cm
The helicopter and the sensor both move only in the horizontal direction and have a horizontal acceleration of magnitude 2.88 m/s2. Ignoring air resistance, find the tension in the cable towing the
What is the magnitude of the electric field between the plates and What is the magnitude of the force on an electron between the plates and also How much work must be done on the electron to move it