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A horse canters away from its trainer in a straight line, moving135 m away in 15.6 s. It then turns abruptly and gallops halfwayback in 6.20 s.
Calculate its average speed for the entire trip, using "away fromthe trainer" as the positive direction.
Calculate its average velocity for the entiretrip, using "away from the trainer" as the positive direction.
An RLC circuit has a resistor of 300 W, a 1.0 µF capacitor, and an inductor of 450 mH connected to an alternate power source with a voltage, calculate the rms current flowing through the circuit
An electric vehicle starts from rest and accelerates at a rate of 2.4 m/s2 in a straight line until it reaches a speed of 14 m/s. How much time elapses from start to stop
Cube of ice is taken from the freezer at -8.5°C and placed in a 75-gram aluminum calorimeter filled with 300.0 grams of water at room temperature of 20.0°C. The final situation is observed to be all water at 17°C. What was the mass of the ice cub..
Find the acceleration of a forklift of mass 1400 kg pushed by a force of 2100 N that is opposed by a frictional force of 425 N.
In a Carnot cycle the area for each transformation corresponds to the following work: (a) isothermal expansion: 31,165 J, (b) adiabatic expansion: 21,517 J, (c) isothermal compression: 24,282 J, (d) adiabatic compression: 21,517 J. Calculate (1) the ..
An ac generator has a frequency of 6.5 kHz and a voltage of 40 V. When an inductor is connected between the terminals of this generator, What is the inductance of the inductor
The temperature of a black body can be estimated based on the wavelength of light that it is emitting, Find the surface temperature of a star
A 25000 kg rocket ship accelerates upwards by reason of constant 1.25MH of thrust from its engine. A simple pendulum on the ship is observed to complete 100 full swings in 75 seconds. What is the length of string.
On a very muddy football field, a 100kg linebacker tackles an 85kg halfback. What is the direction of this velocity
Suppose a ski-jumper lands at a point 63 m down an incline of 35 degrees, What was her speed at take-off
A 42 kg child is riding on a carousel (merry-go-round) at a constant speed of 6 m/s. What is the magnitude of the change in the child's momentum |Δp with arrow| in going all the way around (360°)?
Water flows straight down from an open faucet. The cross-sectional area of the faucet is 2.3 × 10-4m2, find the cross-sectional area of the water stream at a point 0.11 m below the faucet
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