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a net force of 70 n acting on a wooden block produces an acceleration of 35 ms2for the block what is the mass of the
a 3-kg block being pushed across a table by a forcephas an acceleration of 2 ms2 what is the net force acting on the
a 2-kg sled sliding freely in the positive direction on an icy surface experiences a 4-n frictional force exerted by
a rear-wheel-drive car supports48of its weight on its two drive wheels and has a coefficient of static friction
1 a 576 kg block located on a horizontal frictionless floor is pulled by a cord that exerts a force f 1010 n at an
two packages are connected by a very light string that goes over an ideal pulley as shown in the figure package a has a
a teacher sends her students on a treasure hunt she gives the following instructions1 walk 300 m north2 walk 400 m
a toy rocket is launched vertically from ground level y 000 m at time t 000 s the rocket engine provides constant
at a given instant in time a 10-kg rock is observed to be falling with an acceleration of 55nbspms2 what is the
what is the weight of a 30-kg mass use g 98 ms2 round the final answer to the nearest whole
the body of a car is suspended on four identical springs consider a car with a mass of 1410 kg this mass is evenly
cave swiftlets are a type of small cave dwelling birds like bats cave swiftlets use echo location to find their way in
a block is released from rest at the top of an incline which makes a 30deg angle with the horizontal the incline is 12m
two atoms collide while moving in a dilute gas the larger atom has a mass m1 6 daltons and a speed v1 200 ms while
a 150-n crate is being pulled up a perfectly smooth ramp that slopes upward at 15deg by a pull that is directed at
a 80 g disk sits on a horizontally rotating turntable the turntable makes exactly3revolutions each second the disk is
the high-speed winds around a tornado can drive projectiles into trees building walls and even metal traffic signs in a
a large solar panel on a spacecraft in earth orbit produces 25 kw of power when the panel is turned toward the sunwhat
a block of mass m160kg is at rest on a plane that makes an angletheta 300degabove the horizontal the coefficient of
a submarine dives to a depth of 986 metersnbspin the oceanwhat is the force in newtons acting on a hatch that has an
a bungee cord is stretched between two poles 498 meters apart and it has a mass of 3702 grams if the force needed to
a parallel-plate capacitor with plates of areanbsp420nbspcm2nbspis charged to a potential differencenbspvnbspand is