if the radius of the earth were on mm, then on that scale the moon would be ____ from earth.(radius of earth - 4000 miles;distance from earth to moon 240,000 miles)
a.6 mm
b.8 cm
c.60 mm
d.80 cm
e.60cm
an object moves in uniform circular motion at 15m/sec and takes 1 sec to go two revolutions. the radius of this circle is
a.1m
b.1.2
c.2.4
d.16
e.20
a rock tied to a string is swung in a circle at a constant speed of 25ft/sec. calculate the magnitude of acceleration if the rock takes 5 sec to make 10 swings.
a.212 ft/sec
b.300 ft
c.312
d.350 ft/sec^2
e.more than 400 ft/sec^2
a 0.5 kg object is swung in circular motion(radius of circle being 2 meters). a 4 n force is applied to the object. the magnitude of the4 objects velocity would be.
a.1 m/s
b.2 m/s
c.4 m/s
d.8 m/s
e.10 m/s
an object on earth has a mass of 4kg. if the object were located on another planet with a gravitational acceleration of one half that of the earth, then the mass and weight would be (kg,n)
a.2 kg, 4.9 n
b.2,9kg.8 n
c.4kg 4.9
d.4kg,9.8
e.4kg,19.6 n
jupiter is 5 times as far from the sun as the earth. find the speed.
a.2800 m/sec
b.13000 m/sec
c.33000
d.44000
e. more than 10^6
a boy with a mass of 50kg jumps off a 30kg boat causin g the boat to move to the right at 2m/sec. the boy jumped with a velocity of
a.-1.2m/sec
b.3.3 ,/sec
c.1.1
d.0.2
e.-3.3
a 2kg cart moving in a straight line hits a piece of mnodeling clay that has a mass of 1 kg and is at rest. after the collision the cart and clay stick together an d move at 1m/sec to the left. the initial velocity of the car ___ m/sec to the left
a.1
b.1.5
c.2
d.2.5
e.-0.33
the distance from the earth to the sun is one astronomical unti. the 1 a.u = 93,000,000 miles. jupiter is 5.2 a.u. how many miles is jupiter from the sun.
a.less than mars
b.18,000,000
c.93,000,000
d.480,000,000
e. more than saturn
it takes the earth one year to revolve around the sun at a distance of one a.u. if a planet were four a.u. from the sun how many years would it take to make one orbit?
a.1
b.2
c.4
d.8
e.none
a.6 mm
b.8 cm
c.60 mm
d.80 cm
e.60cm
an object moves in uniform circular motion at 15m/sec and takes 1 sec to go two revolutions. the radius of this circle is
a.1m
b.1.2
c.2.4
d.16
e.20
a rock tied to a string is swung in a circle at a constant speed of 25ft/sec. calculate the magnitude of acceleration if the rock takes 5 sec to make 10 swings.
a.212 ft/sec
b.300 ft
c.312
d.350 ft/sec^2
e.more than 400 ft/sec^2
a 0.5 kg object is swung in circular motion(radius of circle being 2 meters). a 4 n force is applied to the object. the magnitude of the4 objects velocity would be.
a.1 m/s
b.2 m/s
c.4 m/s
d.8 m/s
e.10 m/s
an object on earth has a mass of 4kg. if the object were located on another planet with a gravitational acceleration of one half that of the earth, then the mass and weight would be (kg,n)
a.2 kg, 4.9 n
b.2,9kg.8 n
c.4kg 4.9
d.4kg,9.8
e.4kg,19.6 n
jupiter is 5 times as far from the sun as the earth. find the speed.
a.2800 m/sec
b.13000 m/sec
c.33000
d.44000
e. more than 10^6
a boy with a mass of 50kg jumps off a 30kg boat causin g the boat to move to the right at 2m/sec. the boy jumped with a velocity of
a.-1.2m/sec
b.3.3 ,/sec
c.1.1
d.0.2
e.-3.3
a 2kg cart moving in a straight line hits a piece of mnodeling clay that has a mass of 1 kg and is at rest. after the collision the cart and clay stick together an d move at 1m/sec to the left. the initial velocity of the car ___ m/sec to the left
a.1
b.1.5
c.2
d.2.5
e.-0.33
the distance from the earth to the sun is one astronomical unti. the 1 a.u = 93,000,000 miles. jupiter is 5.2 a.u. how many miles is jupiter from the sun.
a.less than mars
b.18,000,000
c.93,000,000
d.480,000,000
e. more than saturn
it takes the earth one year to revolve around the sun at a distance of one a.u. if a planet were four a.u. from the sun how many years would it take to make one orbit?
a.1
b.2
c.4
d.8
e.none