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A car driving at 20 m/s is approaching a stoplight. As the stoplight turns red, the driver decides that the car is going too fast to stop at the white line and hits the brakes hard. The tires screech as the car decelerates at a constant rate. When the car reaches 3/6 of the distance to the white line, the driver is confident that the speed of the car is under control and eases off the brake pedal. The car decelerates at 1/5 the rate for the remaining 3/6 of the distance and stops on the white line.
How fast was the car going when the driver changed the rate of deceleration?
Assume the distance between the protons in the H2 molecule is 7.50 multiply.gif 10-11 m. Find the energy of the second rotational state, with J = 2
A can of soup has a mass 420 g, height 13 cm, and diameter 5.6 cm. Calculate the moment of inertia of the can if it takes 1.5 s to reach the bottom of the incline
The drawing shows a rectangular block of glass (n = 1.52) surrounded by a liquid with n = 1.58. At what angle does the ray leave the glass at point B
Suppose you have an electric hot water heater for your house which is an aluminum cylinder which has a 0.44 m radius and is 1.8 m high. The walls are 1.0 cm thick.
A 32.0 µF capacitor is connected to a 45.0 omegacap.gif resistor and a generator whose rms output is 30.0 V at 60.0 Hz. compute The phase angle for the circuit
A very distant galaxy has an apparent bolometric magnitude of +23.5. Determine the measured flux of photons
An AC series circuit has 12.0 ? resistance, 15.00 ? inductive reactance and 10.00 ? capacitive reactance. obtain the power output
A 5 kg mass is attached to a 1-m long string. If the speed of the mass at the bottom of the swing is 3 m/s, what it the force in the string at this point
An RLC series circuit has a 2.50 ? resistor, a 100 µH inductor, and an 80.0 µF capacitor. Find the average power at the circuits resonant frequency
In a dentist's office an X-ray of a tooth is taken using X-rays that have a frequency of 6.08 × 1018 Hz. What is the wavelength in vacuum of these X-rays
Find the capacitance of a parallel plate capacitor that has two square plates both having a side length of 6 cm, where these plates are seperated by 15 mm
A uranium-fuelled research reactor has a cubic shape with sides of length 1.0 m. estimate the power out of the reactor in units of watts
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