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A projectile is fired straight up with a speed 64.4 m/s at a latitude 29o in the Northern hemisphere. Show it lands at a point to the west of the launch point, and find the magnitude of the deflection.
An electron experiences a magnetic force of magnitude 4.20 10-15 N when moving at an angle of 45.0° with respect to a magnetic field of magnitude 3.90 10-3 T. Find the speed of the electron
A human wearing cloths has about 1.0 m^2 of exposed skin. How much power does a typical human loose due to radiation
The thrust produced by a single jet engine creates a force of F = 63000 N. It takes the jet (with a mass of m = 9300 kg) a distance of d = 0.75 km to take off. What is the take-off speed of the jet vt in m/s
In this experiment, you bend your elbow and stack coins on top of your arm, Which coins are the easiest to catch
An 79 kg person is parachuting and experiencing a downward acceleration of 2.0 m/s2 shortly after opening the parachute. What upward force is exerted on the open parachute by the air
A 0.200-kg block along a horizontal track has a speed of 1.40 m/s, What is the spring's maximum compression if the track is frictionless
You look at yourself in a shiny 8.4-cm-diameterChristmas tree ball. If your face is 21.0cm away from the ball's front surface, where is your image? Follow the sign conventions. Is it real or virtual
Kieran takes off down a 50m high, 10° slope on his jet-powered skis. The skis have a thrust of 320 N. The combined mass of skis and Kieran is 50 kg (the fuel mass is negligible). Kieran's speed at the bottom is 40 m/s. What is the coefficient of k..
A box of books weighing 334 N is shoved across the floor by a force of 479 N exerted downward at an angle of 33° below the horizontal. What is the maximum coefficient of kinetic friction between the box and the floor that allows the box to move with ..
The tune-up specifications of a car call for the spark plugs to be tightened to a torque of 48Nm. With what force must you pull
The rotational inertia of a collapsing spinning star changes to 1/4 its initial value. What is the ratio of the new rotational kinetic energy to the initial rotational kinetic energy.
Harry Potter (55kg) is riding his broom north when a Slytherin casts a spell to knock him from the broom. what is Harry's velocity
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