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The circuit in the figure is composed of two batteries (ε1 = 8 V and ε2 = 5 V) and four resistors (R1 = 110 Ω, R2 = 40 Ω,R3 = 40 Ω, and R4 = 50 Ω) as shown.
1) What is the current I1 which flows through R1?
2) What is the current I3 that flows through R3?
A satellite is in orbit about Earth. Its orbital radius is1.28×107 m. The mass of the satellite is 2849 kg and the mass of Earth is 5.979×1024 kg. Determine the orbital speed of the satellite in mi/s. 1 mi/s = 1609 m/s.
A widely used "short-wave" radio broadcast band is referred to as the 25-m band. What is the frequency of a 25-m radio signal
a thin oil film covers a puddle of water after a rain. The oil and water has an index No = 1.420 Nw = 1.333. What is the minimum thickness of the thin film
an emergency vehicle siren is designed to emit an 8000 hz sound. you hear a 9143 hz tone as it approaches you at 40.0ms
Styrofoam has a density of 300 kg/m^3. What is the maximum mass that can hang without sinking from a 40cm diameter Styrofoam sphere in water? Assume the volume of the mass is negligible compared to that of the sphere.
A 5g bullet leaves the muzzle of a rifle with a speed of 320 m/s. What force (assumed constant) is exerted on the bullet while it is traveling down the 0.81 m long barrel of rifle.
A 0.1A current is charging a capacitor that has square plates 5cm on each side. Find the time rate of change of electric flux between the plates
a basketball player makes a jump shot. the 0.600 kg ball is released at a height of 2.00 m above the floor with a speed
A park ranger wants to shoot a monkey hanging from a branch of a tree with a tranquilizing dart. The ranger aims directly at the monkey, not realizing that the dart will follow a parabolic path and thus will fall below the monkey.
If we want to have successive fringes on a screen 5.9 cm apart near the center of the pattern, where should we place the screen
A Hollywood daredevil plans to jump the canyon shown in the figure on a motorcycle, what is the correct angle for his launch ramp (deg) and What is his correct launch speed
A rock is thrown vertically upward with a speed of 18.0m/s from the roof of a building that is 40.0mabove the ground. Assume free fall. What is the speed of the rock just before it strikes the ground
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