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Question 1182161: Suppose an astronaut has landed on Mars. fully equipped the astronaut has a mass of 125 kg and when the astronaut gets on a scale the reading is 49 N what is the acceleration due to gravity of Mars
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Question 1182159: (a) What is the force of gravity between two 1000 kg cars separated by a distance of 25 m on an interstate highway (B) how does this force compare with the weight of a car
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Question 1182160: The separation distance between two 1.0 kg masses is a decrease by two-thirds and (b) increased by a factor of 3. how is the mutual gravitational force affected in each case
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Question 1182245: What is the momentum of a car (m=800kg) that is moving at 35 mph?
I did p=m*v p= ? m = 800kg v= 35 mph
800 kg * 35 mph = 2800kg*mph is this correct ?
Click here to see answer by mananth(16946)

Question 1182248: If two rail cars crash together and hook up with each other, what will be the final velocity of the two cars. Car 1 has a mass of 52000 kg And initial velocity of + 0.150 mph car 2 has a mass of 7200 kg and an initial speed of + 0.050 mph solve by conservation of momentum
I did p=m*v car 1 p = ? m= 5000kg v= +0.150 mph
Car 2 p= ? m = 72000kg m = 0.050 mph
Then I got confused
Click here to see answer by ikleyn(52754)

Question 1182359: If a car is driven 4 miles East and then 3 miles North what is the distance and displacement of the trip
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Question 1182366: A man runs 200 yards East and then turns around and runs 50 yards West in 35 seconds what is the man's average velocity for this trip ?
I added the yards 200 yard+50 yard = 250 yards then divided 250/35 . Is this correct
Click here to see answer by math_tutor2020(3816)

Question 1182381: A butterfly flies 1500 miles in 2 months (use 61 days) what is the average speed of the butterfly in mph ?
On this problem do I use v=d/t ?
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Question 1182412: A 1600 kg car accelerates to 60 mph (from rest) in 8.8 seconds what is the force in Newton's that the car is exerting to accelerate at that rate ?
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Question 1182424: A 20 kg Box slides across the floor with a friction force of 200 N slowing it down. What is the acceleration of the Box?
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Question 1182425: What is the friction force on a Box that has a mass of 15 kg as it slides across the floor. The coefficient of friction of the not so clean floor is 0.25
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Question 1182443: What is the momentum of a fuel tanker moving to the west that has a loaded tonnage of 800000 tons ( lets use metric tons .. 1 ton = 1000 kg ) and a speed of 36.0 mph in kg*m/s
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Question 1182444: the track is a 500m circuit. Ali practices running at a speed of 10kph. Ben practices cycling and travels at 25kph. How long does Ali take to run one lap?
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Question 1182446: Mom turns hard into Burger King parking lot. The car has a mass of 1850 kg, and is moving at a speed of 10 m/s . The radius of the turn is 4.5 m What is the centripetal force on the car ?
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Question 1182482: Please help me! I'm confused on this
Two bikers meet at a park. Biker A needs to stop at the store that is 12 miles east of the park. Biker B heads southeast at a 61° angle at the same time for 24 miles. Once biker A leaves the store he heads southwest at an angle of 89° for 21 miles. Do NOT use the law of cosines, use your knowledge from the content of this course.
a. Use your knowledge of triangles to figure out if the two bikers will be able to meet up if each biker travels the distance given.
b. If they do not meet up, how much farther would one of the bikers have to travel to meet the other?
c. What is the measure of the angle between the bikers?
d. What is the relationship between the measure of the angles and the paths the bikers took?
e. Classify the triangle the paths created.
f. How many miles did they travel together?
Click here to see answer by MathLover1(20849)

Question 1182529: An Arctic tractor drags a 45 ton (that's metric ton 1 ton equals 1000 kg) across the snow which has a friction coefficient of 0.075 a distance of 4500 kilometers how much work did the tractor do
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Question 1182575: What is the kinetic energy of a 20 kg dog that is running at a speed of 9.0 m/s (about 20 m/h)
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Question 1182591: A 0.5 kg block initially at rest on a frictionless horizontal surface is acted upon by a force of 8.0 N for a distance of 4.0 m how much kinetic energy does the block gain
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Question 1182592: What is the potential energy of 3.00 kg object at the bottom of a well 10.0 m deep as measured from ground level. Explain the sign of the answer
(b) How much work is required to lift a 3.00 kg object from the bottom of a well 10.00 m deep
Click here to see answer by mananth(16946)

Question 1182593: Madeline's car used 15 gallons to travel 390 miles. How many gallons of gas would she need to travel 156 miles?

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Question 1182593: Madeline's car used 15 gallons to travel 390 miles. How many gallons of gas would she need to travel 156 miles?

Click here to see answer by josgarithmetic(39613)

Question 1182603: A commuter plane flew to a small town from a major airport. The plane's average speed flying to the small town was 250 mph, and its average speed returning to the major airport was 150 mph. The total flying time was 4 hours. Find the distance between the two airports.
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Question 1182636: If a winch pulls a broken down truck against a friction force of 500N, and does 3000J of work, how far did the winch move the truck?
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Question 1182655: If your car now gets 5 km/L of gas and you can go 412 km on a tank of gasoline, how far could you drive with the same amount of gasoline with a car that gets 19 km/L.
Click here to see answer by greenestamps(13195)

Question 1182633: A 1.0 kg rocket dropped from a height of 6.0 m at what height is the rock's genetic energy twice is potential energy
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Question 1182720: A quantity of steam (300g) at 110°C is condensed, and the resulting water is frozen into ice at 0°C. How much heat removed?
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Question 1182725: Equal amounts of heat are added to equal masses of aluminum and iron at the same Initial temperature. Which metal will have the higher final temperature and how much greater will that temperature change be than the temperature change of the other metal
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Question 1182752: A small boat sends a distress signal giving its location as 10 miles from shore in choppy seas and says it is making only 5 knots. A Coast Guard boat is dispatched from shore to give aid: it averages 20 knots. How long before it meets the disabled boat if they are traveling toward each other? How far did each travel?

Click here to see answer by greenestamps(13195)

Question 1182775: A quantity of gas in a piston cylinder has a volume of 0.500 m^3 and a pressure of 200 Pa. The piston compresses the gas to 0.150m^3 in an isothermal (constant temperature) process. What is the final pressure of the gas
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Question 1182802: On a map of Nature's Wonder Hiking Trails, 1 centimeter corresponds to 5 miles. Find the length of a trail represented by a line that is 6 centimeters long on the map.
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Question 1182805: If a hammer (mass=0.45kg) is 1.7 m high on a shelf,how much potential energy does it have
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Question 1182818: A robin flies 200 m [E] in 29 s, lands on a tree branch and rests there for 35 s. Then the robin turns and flies 500 m [W] in 65 s. Which of the following is the robin's average velocity?
a. 0.43 m/s [E]
b. 0.43 m/s [W]
c. 2.33 m/s [E]
d. 2.33 m/s [W]
Click here to see answer by ikleyn(52754)

Question 1182819: A car accelerates uniformly at +2 m/s² for 3 s, If the car's initial velocity was 12 m/s, how far did the car travel in 3 s?
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Question 1182860: If a baseball (mass = .450 kg) is 45 feet up in the air how many Joules of potential energy does it have relative to the ground?
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Question 1182858: How much heat energy is required to heat up 2.35 kg of water, from 20oC to 83oC ?
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Question 1182870: How much energy heat is required to warm up 2.35 kg of water from 20oC to 83oC
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Question 1182893: A piston-cylinder of gas with a pressure of 45 psi is compressed from 25 gal to 20 gal at the same time it is heated from a temperature of 300 K to 360 K. What is the new pressure inside the cylinder
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Question 1182900: A conveyor belt can lift 40 cans per second 3.40 meters up onto a casing floor. If each can has a weight of 5.50 N, what is the power being put out by the electric motor that drives the conveyor
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Question 1182901: If a baseball (m=.450 kg) is thrown up with a velocity of 8 m/s, how many meters high will it reach?
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Question 1182761: Ali is hiking on the hill,
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Question 1182762: Ali is hiking on the hill,
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