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What is the gravitational potential energy of the basketball, relative to the ground when it is released?
A batted baseball leaves the bat at an angle of 37 degrees above the horizontal and is caught by an outfielder 120m from the plate. The x-axis is horizontal, and they y-axis is vertical. What is th
A yo-yo has a rotational inertia of 790 g·cm2 and a mass of 95 g. Its axle radius is 2.2 mm and its string is 100 cm long. The yo-yo is thrown so that its its initial speed down the string is
A block is pulled up a frictionless 30 degrees incline by an applied force of 25 N parallel to the surface of the incline. If the mass of the object is 3.0 kg what is the magnitude of the accelerat
A thin-walled sphere rolls along the floor. What is the ratio of its translational kinetic energy to its rotational kinetic energy through its center of mass?
A 9.4-cm-diameter, 402 g sphere is released from rest at the top of a 0.7-m-long, 25° incline. It rolls, without slipping, to the bottom. What fraction of its kinetic energy is translational?
A long horizontal wire carries 16.0 A of current due north. A. What is the absolute value of the net magnetic field 21.0 cm due west of the wire if the Earth's field there points north but downward,
An object that is 31 cm in front of a convex mirror has an image located 19 cm behind the mirror. How far behind the mirror is the image located when the object is 19 cm in front of the mirror?
A 47 resistor can dissipate up to 0.27 W of power without burning up. What is the smallest number of such resistors that can be connected in series across a 9.0 V battery without any one of them bur
Two converging lensees, the first with focal length 25 cm and second with the focal length 20 cm, are separated by 30 cm. A 4 cm tall object is placed 50 cm infront of the first lens. What is the he
A 20.0 kg package slides down a 36.0 degree incline and accelerates at 0.273 m/s^2. Find the friction force impending its motion. Also, How large is the coefficient of friction?
Determine the delay time between the application of the electric pulse and the onset of activation potential.
What is the scale's measurement of her weight before the elevator starts descending. While it is still at rest on then top floor? Round your answer to 2 significant figures
A baseball is thrown from the roof of a 22 m tall building with an initial velocity of 12 m/s. a. Determine the maximum height above the ground reached by the baseball if it is thrown at an angle of
A 15-kg block is suspended by a pair of cables that are each exactly 35.0 degrees from the vertical. Calculate the tension in each cable, rounding your answer to 2 significant figures.
On a force table, three threads pull on a central ring. Thread 1 pulls at 180 degrees, thread 2 pulls at 90 degrees, and thread 3 pulls at 300 degrees. Thread 3 pulls with a tension of exactly 0.500
A 590 cm3 block of aluminum (D = 2.7 g/cm3) is lowered carefully into a completely full beaker of water. What is the weight of the water, in newtons, that spills out of the beaker?
A tortoise can run with a speed of 0.14 m/s, and a hare can run 20 times as fast. In a race, they both start at the same time, but the hare stops to rest for 5.0 minutes. The tortoise wins by a shel
The magnitude of the charge on each plate of a parallel plate capacitor is 80nC. The capacitor plates are square, 15 cm on a side and separated by 1.0cm. What is the magnitude of the electric field
For a speed of 45 m/s, at what value of the distance d should a driver locate his car if he wishes to stay on a circular path without depending on friction?
A satellite has a mass of 5650 kg and is in a circular orbit 3.10 x 105 m above the surface of a planet. The period of the orbit is two hours. The radius of the planet is 4.10 x 106 m. What is the tru
An electron starts from rest 76.5 cm from a fixed point charge with Q = -0.125 µC. How fast will the electron be moving when it is very far away?
An electron moving to the right at 9.0*10^5 m/s enters a uniform electric field also directed to the right. If the electron is to be brought to rest in the space of 6.5 cm, what is the strength of t
A 1480 kg car is traveling with a speed of 15.0 m/s what is the magnitude of the horizontal net force that is required to bring the car to a halt in a distance of 43.5 m.
A roller coaster,traveling with an initial speed of 15 meters per second decelerates uniformly at -7.0 meters per second^2 to a full stop. Approximately how far does the roller coaster travel during