1,308 Answered Questions for the topic physical science
Physical Science
03/18/15
Choose the correct answer....
If an object of mass 9 kg has a velocity of 7 m/s what is its linear momentum?
A.) 63 kg-m/s
B.) 1.3 kg-m/s
C.) 0.78 kg-m/s
D.) 16 kg-m/s
E.) cannot be determined
Physical Science
03/18/15
Choose the correct answer....
If the lever arm of a 5-n force is 7 m, what is the torque acting on the object due to this force?
A.) 35 Nm
B.) 0.71 Nm
C.) 1.4 Nm
D.) 12 Nm
E.) cannot be determined
Physical Science
03/18/15
Calculate the centripetal force...
Calculate the centripetal force on a 3.0-kg object moving in a horizontal circular path of 20-m radius with a speed of 8.0 m/s.
Physical Science
03/18/15
What is the unbalanced force acting on the automobile?
An automobile with a mass of 2000 kg is moving north on a level, straight highway with a constant velocity of 80 km/h. What is the unbalanced force acting on the automobile?
Physical Science
03/18/15
Calculate the force.....
Calculate the force on a string tied to a ceiling with a 9.0-kg mass attached.
Physical Science
03/17/15
How much more or less
A small car with a mass of 850 kg travels northward at 29 m/s.
How much less momentum does the car have than the truck when the truck has a mass of 10500 kg and traveling eastward at 19...
more
Follows
•
2
Expert Answers
•1
![]()
Physical Science
03/17/15
Force of gravity of two masses....
How would the force of gravity between two masses be affected if the separation distance between them were the following? (Assume F2 represents the new force and F1 represents the original...
more
Follows
•
2
Expert Answers
•1
![]()
Physical Science
03/17/15
What is the force of gravity?
What is the force of gravity between two 1170 kg cars separated by a distance of 23 m on an interstate highway?____ N
Follows
•
2
Expert Answers
•1
![]()
Physical Science
03/17/15
Find the magnitude of the attraction between the books..
Two 2.3 kg physical science textbooks on a bookshelf are 0.22 m apart. What is the magnitude of the gravitational attraction between the books?____ N
Follows
•
1
Expert Answers
•1
![]()
Physical Science
03/12/15
what is the net force on an object
Suppose two 4 newton forces act on an object in the same directions
Follows
•
3
Expert Answers
•2
![]()
![]()
Physical Science
03/09/15
a 1200 kg car goes from 0 m/s to 26.8 in 4s. what is the average force acting upon it?
a 1200kg car goes from 0m/s to 26.8 m/s in 4s. what is the average force acting upon it?
Follows
•
3
Expert Answers
•1
![]()
Physical Science
03/02/15
a bus was going 30km/hr. six seconds later, it was going 24 km/hr. What was its acceleration?
Ddsgshrwgejhsgjfjgsnecdkd
Physical Science
02/25/15
What is the force???
What is the unbalanced force acting on a moving car with a constant velocity of 21 m/s (47 mi/h)? ___ N
Follows
•
3
Expert Answers
•2
![]()
![]()
Physical Science
02/25/15
What is the force???
What is the force in newtons acting on a 3.6 kg package of nails that falls off a roof and is on its way to the ground?___ N
Follows
•
2
Expert Answers
•1
![]()
Physical Science
02/25/15
What is the weight??
What is the weight in newtons of a 7.6 kg package of nails?___ N
Follows
•
3
Expert Answers
•2
![]()
![]()
Physical Science
02/25/15
What is the bullet's acceleration?
A force of 1.9 N is exerted on a 5.7 g rifle bullet. What is the bullet's acceleration?___ m/s2
Follows
•
2
Expert Answers
•1
![]()
Physical Science
02/25/15
Determine the net force necessary....
Determine the net force necessary to give an object with a mass of 1.8 kg an acceleration of 5.3 m/s2.
___ N
Follows
•
2
Expert Answers
•1
![]()
Physical Science
02/20/15
What is the average speed in km/h of a car that travels 46 km in 21 min.
this is the only question im having trouble with please help!
Follows
•
2
Expert Answers
•1
![]()
Physical Science
02/19/15
What is the mass of the rocket?
A constant net force of 1360 N gives a toy rocket an acceleration of 2.4 m/s2. What is the mass of the rocket? ____ kg
Physical Science
02/19/15
What is the bullet's acceleration?
A force of 1.9 N is exerted on a 5.7 g rifle bullet. What is the bullet's acceleration?
___ m/s2
Follows
•
1
Expert Answers
•1
![]()
Physical Science
02/19/15
Determine the net force necessary ...
Determine the net force necessary to give an object with a mass of 1.8 kg an acceleration of 5.3 m/s2.
___ N
Follows
•
1
Expert Answers
•1
![]()
Physical Science
02/19/15
What additional force is needed?
A horizontal force of 350 N is applied to a stationary wooden box in one direction, and a 700 N horizontal force is applied in the opposite direction. What additional force is needed for the box to...
more
Physical Science
02/19/15
Determine the net force...
What is the net force of a 4.0 N force and an 6.0 N force acting on an object for each of the following conditions?
(a) The forces act in opposite directions.___ N(b) The forces act in the same...
more
Physical Science
02/12/15
What speed is it falling?
A ball is dropped from the top of a 94-m-high building. What speed does the ball have in falling 2.8 s?
Follows
•
2
Expert Answers
•1
![]()
Physical Science
02/12/15
At what angle will .........
A golfer on a level fairway hits a ball at an angle of 23° to the horizontal that travels 105 yd before striking the ground. He then hits another ball from the same spot with the same speed, but at...
more
Follows
•
1
Expert Answers
•1
![]()
Still looking for help? Get the right answer, fast.
Ask a question for free
Get a free answer to a quick problem.
Most questions answered within 4 hours.
OR
Find an Online Tutor Now
Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.
