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Question1
A baseball is thrown at an angle of 20? relative to ground at a speed of 25.6 m/s. The ball is caught 42.9416 m from the thrower.
The acceleration due to gravity is 9.81 m/s2.
How long is it in the air?
Question2
A 80 kg airplane pilot pulls out of a dive by following, at a constant speed of 180 km/h, arc of a 300 m radius circle.
At the bottom of the circle, find the
a) acceleration's direction and magnitude,
b) net force and
c) force exerted by the plane on the pilot.
A 3.0 kg body oscillates in SHM on a spring that, when extended 3.6 mm from its equilibrium position, has an 8.9 N restoring force. What are the capacitance of an LC circuit with the same period if L is 7.6 H
After being accelerated to a speed of 1.62×105m/s , the particle enters a uniform magnetic field of strength 1.00T, Find the ratio m/q for this particle
A parachutist leaves a stationary plane and free falls for 50.0 meters (ignore air resistance for the free fall). At what height did she leave the plane
A sphere that is a perfect blackbody radiator has a radius of 0.140 m and is at 250°C in a room where the temperature is 27°C. find the net rate at which the sphere radiates energy.
A battery having an emf of 9.80 V delivers 109 mA when connected to a 60.0 load. Determine the internal resistance of the battery
How many kcal of heat must be withdrawn from 4.56 kg of steam at 125°C to change it to ice at -44.5°C.
The magnetic flux through a loop of wire is ?B = 5.7 T · m2. what is the smallest possible value for the area of the loop
A 2.40-g bullet embeds itself in a 1.30-kg block, which is attached to a spring of force constant 740N/m, Find the time for the bullet-block system to come to rest
Whats the coefficient of the kinetic friction of the tire. What is the acceleration of the car.
The box has a mass of 31.0 kg, and the coefficient of kinetic friction between the box and floor is 0.530. The acceleration of gravity is 9.81 m/s2. Illustrate what is the acceleration of the box?
A 125-kg (including all the contents) rocket has an engine that produces a constant vertical force (the thrust) of 1720 N. Inside this rocket, Find the acceleration of the rocket
A space vehicle is coasting at a constant velocity of 28.5 m/s in the +y direction relative to a space station. The pilot of the vehicle fires a RCS (reaction control system) thruster, which causes it to accelerate at 0.523 m/s2 in the +x direction.
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