iheartfood
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Questions Asked

iheartfood:
Group Title
A 2.50 kg ball moving at 7.50 m/s is caught by a 70.0 kg man while the man is standing on ice. How fast will the man / ball combination be m…
 updated 16 hours ago
 5 replies
 1 Medal
Mathematics

iheartfood:
Group Title
The government uses the following methods to regulate pollution. Which of these results in the most pollution reduction by the firms with th…
 updated 14 days ago
 6 replies
 1 Medal
Mathematics

iheartfood:
Group Title
A pendulum clock is brought to Mars. How much does the bob move on Mars as compared to the Earth?
A. It keeps time just as on Earth
B. The…
 updated one month ago
 19 replies
 No Medals Yet
Mathematics

iheartfood:
Group Title
Question inside! :)
**thank you! :D
 updated one month ago
 22 replies
 2 Medals
Mathematics

iheartfood:
Group Title
What is the net acceleration of a skier (75kg) skiing down a 20 degree slope with a coeffient of friction of 0.200? (Show the work, includin…
 updated one month ago
 57 replies
 3 Medals
Mathematics

iheartfood:
Group Title
What is the applied force needed to move a 50.0kg suitcase at a constant velocity horizontally across the floor if the coefficient of kineti…
 updated one month ago
 23 replies
 1 Medal
Mathematics

iheartfood:
Group Title
An arrow is shot by an archer at a 50.0 degree angle at a velocity of 10.0 m/s. What is the maximum height and range of the arrow?
**how …
 updated one month ago
 59 replies
 1 Medal
Mathematics

iheartfood:
Group Title
What is the final velocity of a rocket propelled into space with a net acceleration of 200m/s^2 as it reaches an altitude of 10.0km? (Assumi…
 updated one month ago
 32 replies
 3 Medals
Mathematics

iheartfood:
Group Title
A person walks the following route: North 2 meters in 1 second, then turns directly East for 10 meters in 2 seconds, then South for 10 meter…
 updated one month ago
 21 replies
 3 Medals
Mathematics

iheartfood:
Group Title
A child drops his toy car from a 2nd floor window that is 7.3 meters high. Find the velocity of the toy car just before it hits the ground …
 updated one month ago
 26 replies
 2 Medals
Mathematics

iheartfood:
Group Title
A plane starting at rest at the south end of a runway undergoes a constant acceleration of 1.6 m/s/s for a distance of 1600m before takeoff.…
 updated one month ago
 9 replies
 1 Medal
Mathematics

iheartfood:
Group Title
A snowmobile has an initial velocity of 3.0 m/s
Part 1: If it accelerates at the rate of 0.5 m/s/s for 7.0 sec, what is the final vel.?
…
 updated one month ago
 13 replies
 1 Medal
Mathematics

iheartfood:
Group Title
A skater traveling at 7 m/s accelerates at the rate of .80m/s/s for an interval of 2.0sec. What is the final velocity?
***thank you!! :)
 updated one month ago
 32 replies
 2 Medals
Mathematics

iheartfood:
Group Title
2 Fermi Problems?
1) How many gallons of gasoline are used by cars each year in the country you live in?
…
 updated one month ago
 19 replies
 1 Medal
Mathematics

iheartfood:
Group Title
How many golf balls will fit in a suitcase? Any size is okay!
Fermi problem!
 updated one month ago
 48 replies
 3 Medals
Mathematics

iheartfood:
Group Title
Fermi problem?
Estimate the distance (in kilometers) that you walk and run during a typical week while going about your normal activities…
 updated one month ago
 18 replies
 2 Medals
Mathematics

iheartfood:
Group Title
Why would an observer out in space see the moon orbiting the earth rather than the earth orbiting the moon?
A. The earth's gravity pulls…
 updated 2 months ago
 6 replies
 1 Medal
Mathematics

iheartfood:
Group Title
What does it mean for a force to act in accordance with an inverse square law?
A. The force is directly proportional to the distance squa…
 updated 2 months ago
 9 replies
 1 Medal
Mathematics

iheartfood:
Group Title
Satellite A orbits the earth at a height of 2.00 times the earth's radius. Satellite B orbits the earth at a height 3.00 times the earth's r…
 updated 2 months ago
 9 replies
 1 Medal
Mathematics

iheartfood:
Group Title
Which is correct about the moon's motion around the earth?
A. The moon is in free fall.
…
 updated 2 months ago
 9 replies
 1 Medal
Mathematics

iheartfood:
Group Title
If you plotted vector arrows around a mass to represent gravitational field vectors, describe how the length of the arrows would change as t…
 updated 2 months ago
 4 replies
 1 Medal
Mathematics

iheartfood:
Group Title
A placekicker kicks a football upward at an angle of 20 degrees and a speed of 5.0 m/s. At what other angle will he have to kick a second ba…
 updated 2 months ago
 24 replies
 No Medals Yet
Mathematics

iheartfood:
Group Title
A spring has a spring constant of 100 N/m, and the mass hanging on it is 0.71 kg. What is the period of the spring's motion?
0.031 s, 0.4…
 updated 2 months ago
 7 replies
 1 Medal
Mathematics

iheartfood:
Group Title
The moon's gravity is onesixth that of the earth. What is the period of a 0.25 m long pendulum on the moon?
0.32 s, 1.0 s, 2.5 s, or 3.5…
 updated 2 months ago
 34 replies
 2 Medals
Mathematics

iheartfood:
Group Title
A CD spins at a constant angular velocity of 4.0 revolutions per second clockwise. Which of the statements about the CD is true?
A. No net …
 updated 2 months ago
 33 replies
 5 Medals
Mathematics

iheartfood:
Group Title
An astronaut lands on an alien planet. He places a pendulum (L = 0.200 m) on the surface and sets it in simple harmonic motion, as shown on …
 updated 2 months ago
 18 replies
 2 Medals
Mathematics

iheartfood:
Group Title
Which of the following is not true of the Speaker of the House?
A. The Speaker delegates legislation to subcommittees.
…
 updated 2 months ago
 7 replies
 1 Medal
Mathematics

iheartfood:
Group Title
A 10 kg barrel is lifted by pulling on a rope. The barrel accelerates at 1.50 m/s^2. Find the force of tension on the rope.
15 N, 98 N, 8…
 updated 2 months ago
 35 replies
 4 Medals
Mathematics

iheartfood:
Group Title
Which of these should a free body diagram of a car being driven along a highway include?
A. the force of the engine in turning the drives…
 updated 2 months ago
 10 replies
 2 Medals
Mathematics

iheartfood:
Group Title
A strong weightless rope has a mass m hanging from the middle of it (will draw inside!). The tension force on each rope is 25 N, and the rop…
 updated 2 months ago
 27 replies
 2 Medals
Mathematics
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