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Q. The mass of the Moon is 7.35 x 10^22 kg. At some point between Earth and the Moon, the force of Earth's gravitational attraction on an object is cancelled by Moon's force of gravitational attraction. If the distance between Earth and the Moon (centre to centre) is 3.84 x 10^5 km, compute where this will occur, relative to Earth.
Q. A uniform plank of length 4.9m and weight 228N rests horizontally on two supports, with 1.10m of the plank hanging over the right support. To what distance x can a person who weighs 449N walk on overhanging part of the plank before it just begins to tip?
Assume a car's brakes can produce an acceleration of -7 m/s2. If the car is travelling at an initial speed of 28.0m/s, what is the minimum distance necessary to stop car.
A large wooden turntable in the shape of the flat disk has a radius of 2.00 {rm m} and a total mass of 120 {rm kg}. The turntable is initially rotating at 3 {rm rad}/{rm s} about a vertical axis through its center.
how fast is the bag moving when the bults exits. If you wish to find the distance traveled using the equation d = 1/2 at2, what value should you use for a.
What is the normal force that the incline exerts on the block. find the acceleration of the block.
What is an average speed
The human body can survive a negative acceleration trauma incident (sudden stop) if the magnitude of acceleration is less than 250 m/s^2.
How much work done against force of gravity
The wheel of the car has a radius of 0.340 m. The engine of the car applies a torque of 282 N•m to this wheel, that does not slip against the road surface. Since the wheel does not slip, the road must be applying the force of static friction to the w..
Use approximate relationships to find the electric field at a point 4 cm from the axis, measured radially outward from the midpoint of shell.
An insulated Thermos contains 123 cm3 of hot coffee at 73 °C. You put a 12.0 g ice cube at its melting point to cool coffee. By how various degrees has your coffee cooled one time the ice has melted and equilibrium is reached? Treat the coffee as tho..
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.
Illustrates a FBD of the person
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