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A tennis ball is shot vertically upward in an evacuated chamber with an initial speed of 20.0 m/s at time t=0.
How high does the ball rise?
Approximately how long does it take the tennis ball to reach its maximum height?
Determine the velocity of the ball at t=3.00 seconds
What is the magnitude of the acceleration of the ball when it is at its highest point?
A violin string of length 35 cm and mass 1.1 g has a frequency of 478 Hz when it is vibrating in its fundamental mode. What is the wavelength of the standing wave on the string
How much energy would be required to break a helium nucleus into its constituents, two protons and two neutrons? The rest masses of a proton
The resonant frequency of a series RCL circuit is 13.8 kHz. The inductance and capacitance of the circuit are each quadrupled. What is the new resonant frequency
A 61 V. battery is connected across a 62600 ohm and a 31700 ohm resistor connected in series. What is the per cent error in the voltmeter reading
A pulley system lifts 400N to height of 15 meters in 6 seconds. How much work is done on the object. What power was generated
When a car's starter is in use, it draws a large current. The car's lights draw much less current. As a certain car is starting, What is its internal resistance
The power required by an ice maker is 225 W and is the rate at which it does work. The ice maker operates like a refrigerator or an air conditioner and has a coefficient of performance of 3.60.
A block of mass 4 kg is compressing a spring with K=2500 N/m a distance of 0.3 m. How much work does the spring do on the block
A motorist drives south at 30.0 m/s for 3.00 min, then turns west and travels at 25.0 m/s for 2.80 min, and finally travels northwest at 30.0 m/s for 1.00 min. For this 6.8 min trip, how do you find the total vector, average speed and average velo..
A 9.8-kg object oscillates at the end of a vertical spring that has the spring constant of 1.75 104 N/m. The effect of air resistance is represented by the damping coefficient b = 3.00 N•s/m.
Suppose a muon produced as a result of cosmic ray colliding with a nucleus in the upper atmosphere has a velocity v = 0.9500c. How far would it have traveled as observed on earth
In a head-on collision, the car stops in 0.23 {rm s} from a speed of 17 {rm m}/{rm s}. The driver has a mass of 77 {rm kg}, and is, fortunately, tightly strapped into his seat. What force is applied to the driver by his seat belt during that fract..
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