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An unknown tuning fork produces a beat frequency of 3Hz when played with a 440Hz fork and 8Hz when played with a 445Hz fork.
What is the frequency of the unknown fork?
How much force, in Newtons, is needed to accelerate a truck with a mass of 1500 kilograms from a full stop to 40 m/s in 10 seconds if the rate of acceleration is constant.
Estimate the ball's rise in temperature.
Water is in the big beaker. Scale 1 reads 87 newtons, scale 2 reads 948 newtons, and scale 3 reads 0 newtons. The hanging block has a density of 10 × 10^3 kg/m3. To the nearest tenth of newton what does scale 1 read after the block is fully lowere..
compute the coefficient of kinetic friction between block A and the tabletop.
An engine has an efficiency e1. The engine takes input heat QH from a hot reservoir and delivers work W1. The heat rejected by this engine is used as input heat for a second engine.
The electric field within the membrane separating the inside and outside of a biological cell is approximately 7.7MV/m, what is the potential difference across the membrane
An asteroid, who's mass is 7.8 × 10-4 times the mass of Earth, revolves in the circular orbit around the Sun at a distance that is 2.5 times the Earth's distance from the Sun.
An emf is induced in a conducting loop of wire 1.14m long as its shape is changed from square to circular, Find the average magnitude of the induced emf if the change in shape occurs in 4.23s
A 60 kg crate is lowered using arope over a fixed support. The rope exerts a constant upward forceof 500 N.? How fast is the crate traveling when it hits the floor
A microwave oven is powered by an electron tube called a magnetron that generates electromagnetic waves of frequency 2.25 GHz, Calculate the speed of the microwaves from these data.
A spring oscillator is designed with a mass of 0.258 kg. It operates while immersed in a damping fluid, selected so that the oscillation amplitude will decrease to 1.00% of its initial value in 8.34 s
When the capacitor is charged to 135V , what is the charge per unit length lambda on the capacitor
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