Measurement/ Units
/ Motion
/ Motion
Convert 85670.809 mm to km
0.085670809 km
An 12 N force is applied to 4 kg object causing it to accelerate. what is the acceleration of the object?
3 m/s
Which two quantities can be expressed using the same units?
Impulse and momentum
A 80-kg skydiver has a speed of 65 m/s at an altitude of 850 m above the ground.
2.6 x 103 J
Two resistors of 20 Ω and 40 Ω are connected in a series circuit with a difference of 80 V. What is the total resistance of the circuit?
60 Ω
Convert 1.6 hr to seconds
5760 s
An 16 N force is applied to a 2 kg object causing it to accelerate. determine the acceleration of the object
8 m/s
what is a scalar quantity?
speed
A new conveyor system at the local packaging plan will utilize a motor-powered mechanical arm to exert an average force of 890 N to push large crates a distance of 12 meters in 22 seconds. Determine the power output required of such a motor.
490 W (rounded from 485 W)
What is the charge of a proton?
1.60 x 10-19
Convert 865654 nm to cm
0.0865654 cm
A dancer is 40 kg and is pull forward the surface of earth with a distance of 6.38 x 106 m. What is the force of gravity?
392 N
A 1,200-kilogram car traveling at 10 meters per second hits a tree and is brought to rest in 0.10 second. What is the magnitude of the average force acting on the car to bring it to rest?
1.2 x 105 N
While training for breeding season, a 380 gram male squirrel does 32 push ups in a minute, displacing its center of mass by a distance of 8.5 cm for each push up. Determine the total work done on the squirrel while moving upward (32 times).
10 J
A charge of 100 elementary charges is equivalent to
1.60 x 10-17 C
A 64 kg runner is moving at a speed of 6.2 m/s rounds a bend with a radius of 30 m. what is the centripetal force of the runner?
82.00 N
Find the gravitational attraction between earth and 2 kg mass on the earth's surface.
m = 2 kg
m = mass of earth 5.98 x 104 kg
r = radius of earth 6.37 x 106 m
G = 6.67 x 10-11 N x m2/ kg2
20.09 N
A 3.1-kilogram gun initially at rest is free to move. When a 0.015-kilogram bullet leaves the gun with a speed of 500 meters per second, what is the speed of the gun?
2.4 m/s
A force of 20 newtons (N) pushing an object 4 meters in the same direction of the force. How much work is done.
80 J
Two identical resistors connected in series have an equivalent resistance of 4 ohms. The same two resistors, when connected in parallel, have an equivalent resistance of
2 ohms
A 1200 kg car travels around a circular track at a constant speed of 25 m/s. if the radius of the track is 35 m. Determinate the ac of the car.
17.85 m/s2
If a football player is 70 kg and is attracted to the surface of earth with a distance of 6.38 x 106 m. What is the force of gravity?
980 N
what is the speed of a 1.0 x 10^3 kilogram car that has a momentum of 2.0 x 10^4 kilogram x meters per second east?
2.0 x 101 m/s
Kris is out in a road tripe with her friends, when a problem occurs with the car. So now they have use a force of 1200 N combined to push the car to the nearest fuel station in 250 m. Determine the work done.
3.0 x 105 J
Three resistors, 6 ohms, 12 ohms, and 16 ohms, are connected in parallel in an electric circuit. The equivalent resistance of the circuit is
less than 6 ohms