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You throw a ball straight down from an apartment balcony to the ground below. The ball has an initial velocity of 4.90 m/s, directed downward, and it hits the ground 2.16 s after it is released. Find the height of the balcony.
a 15 g rubber bullet hits a wall with a speed of 150 m/s. What force did the wall apply to the bullet
Two trains on separate tracks move toward each other. Train 1 has a speed of 115 km/h; train 2 a speed of 62.0 km/h. What is the frequency heard by the engineer on train 1
Find the current in a 11.00 ? resistor connected to a battery that has an internal resistance of 0.25 ? if the voltage across the battery (the terminal voltage) is 24.00 V
A brick is thrown upward from the top of a building at an angle of 45° to the horizontal and with an initial speed of 10 m/s. If the brick is in flight for 2.8 s, how tall is the building.
A distance away from a uniformly charged spherical object, the magnitude of the electric field is 575V/m and the electric potential is 3.50kV. What is the distance to the center of the object
An 80.7-kg jogger is heading due east at a speed of 1.950 m/s. A 53.60 kg jogger is heading 33.1° north of east at a speed of 2.89m/s. compute the magnitude (enter first) and direction of the sum of momenta of the two joggers.
The aorta is a major artery, rising upward from the left ventricle of the heart and curving down to carry blood to the abdomen, what is the magnitude (in m/s2) of the blood's centripetal acceleration
A boat crosses the river from the south shore to the north shore by maintaining a constant velocity of 11.0 m/s due north relative to the water. If the river is 330 m wide, explain how far downstream has the boat moved by the time it reaches the ..
A rectangular loop of wire is placed next to a straight wire, as shown in the (Figure 1) . There is a current ofI = 4.5A in both wires
A spacecraft flies in the horizontal direction at a speed of v=0.980c, What is the slope angle to an astronaut on the spacecraft
Transverse waves travel at 23.3 m/s on a string that is under a tension of 7.00 N. What tension is required for a wave speed of 33.3 m/s in the string
In the last seconds of the championship basketball game, a 7 ft center's team is down by 2 points. He must make a 3 point shot to win the game. He is standing on the 3 point shot line.
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