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Q. A 61.0 kg skier encounters a dip in the snow's surface that has a circular cross section with a radius of curvature of 12 m. If the skier's speed at point A is 7.5 m/s (before entering dip), what is the normal force exerted by the snow on skier at point B (at bottom of the dip)? Ignore frictional forces.
Q. Answers for an elevator are moving down with an acceleration of 3.360 m/s. what would be the apparent weight of a 64.20 kg man in the elevator?
Assume that the sun runs out of nuclear fuel & suddently collapses to form a white dwarf star, with a diameter equal to that of the Earth. Estimate the new rotation period of the Sun.
What effect will increase in temperature from 25 degree Celsius to 32 degree Celsius of the metal metre stick have on the measurement of the dimension of rectangular block? Why are corrections not generally essential for this effect.
A proton collides elastically with a stationary deuteron. If the proton is deflected by 37 degrees, what fraction of its kineti energy does it transfer to the deuteron.
An asteroid is discovered heading straight toward Earth at 13km/s. An international team manages to attach a giant rocket engine to the asteroid. The rocket fires for 10 mins, after which the asteroid is moving at 28 degrees to its original path at a..
What is the magnitude of the external force essential to hold a 2 kg cart motionless at the top of a 2m high incline which is 30 degrees.
What is Fx of the magnitude of the skiers velocity.
An archer puts a 0.54 kg arrow to the bowstring. An average force of 202 N is exerted to draw the string back 1.3 m. suppose that air resistance is negligible.
A 5.00 x 10^4 kg space probe is travelling at a speed of 14000 m/s through deep space. Retrorockets are fired along the line of motion to decrease the probe's speed. The retrorockets generate a force of 4.00 x 10^5 N over a distance of 2600 km. What ..
Needing help, secretary of the United States Department of Agriculture asked your teacher, "If a chicken and a half can lay an egg and a half in a day and a half, how many days will it takes three chickens to lay twenty eggs".
Vector A has a magnitude of 9.10 units and makes an angle of 54.0° with the positive x-axis. Vector B also has a magnitude of 8.00 units and is directed along the negative x-axis. Using graphical methods find the following.
A 128 carton is pulled up a frictionless baggage ramp inclined at 30.0 above the horizontal by a rope exerting a 72.60 pull parallel to the ramp's surface. If the carton travels 5.20 along the surface of the ramp, compute the work done on it by the r..
What is an acceleration of two falling sky divers (mass 100.0 kg including parachute) when the upward force of air resistance is equivalent to one-fourth of their weight. How fast would the father be moving.
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