1,308 Answered Questions for the topic physical science
Physical Science
02/12/15
How long will it take the ball to hit the ground?
If you drop an object from a height of 1.3 m, it will hit the ground in 0.52 s. If you throw a baseball horizontally with an initial speed of 38 m/s from the same height, how long will it take the...
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Physical Science
02/12/15
What angle was the second ball hit?
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...
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Physical Science
02/12/15
A car travels on a straight, level road......
A.) Starting from rest, the car is going 46 ft/s (31 mi/h) at the end of 4.5 s. What is the car's average acceleration in ft/s2 ?
magnitude ___ ft
B.) In 3.5 more seconds, the car is going 92...
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Physical Science
02/05/15
How many hours did the trip take?
A group of college students eager to get to Florida on a spring break drove the 795-mi trip with only minimum stops. They computed their average speed for the trip to be 55.1 mi/h.How many hours...
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Physical Science
02/05/15
What is the speed of the all falling?
A ball is dropped from the top of a 81-m-high building. What speed does the ball have in falling 3.8 s?= ? m/s
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Physical Science
02/05/15
Find the different velocitys of the plane..
An airplane flying directly eastward at a constant speed travels 311 km in 2.0 h.
(a) What is the average velocity of the plane?
= ? km/h(b) What is its instantaneous velocity?
= ? km/h
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Physical Science
02/05/15
Joe Cool drives to see his girlfriend who attends another college....... Find the km/h.
Joe Cool drives to see his girlfriend who attends another college.
(a) The 140. km trip takes 2.0 h. What was the average speed for the trip?
= ? km/h(b) The return trip over the same route takes...
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Physical Science
02/05/15
What is the sprinter's average acceleration??
A sprinter starting from rest on a straight and level track is able to achieve a speed of 13 m/s in a time of 6.1 s. What is the sprinter's average acceleration?
= ? m/s2
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Physical Science
01/26/15
what element has the strongest metallic character
what element exhibits the strongest metallic character
Physical Science
01/23/15
'what is the average acceleration of a car that starts from rest and moves straight ahead at 18m/s in 12s
please help.
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Physical Science
01/14/15
The speed of light is 3 hundred million meters per second how many meters does light travel in a minute
find meters per minute
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Physical Science
01/12/15
What are some common signs of a chemical change?
like some examples would really help????
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Physical Science
01/07/15
the cat traveled 10m in 5 seconds. what is his rate of acceleration?
motion speed acceleration average speed
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Physical Science
12/15/14
A box is 4.0 cm long, 2.00cm wide, and 10cm high. ( vol= l x w x h) wat is the volume?.
Is it 4.0 x 2.00= 8.00 x 10=80cm
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Physical Science
12/10/14
physical science
a rope is used to pull up a 10kg bucket a total of 40m in 2 minutes. what work was done to the bucket w=? what is the pe placed on the bucket? and what power was used to move the bucket in the...
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Physical Science Physics
12/09/14
The jet airplane takes off with the acceleration 15m/s2. In 3 minutes it travels the distance
A) 54 km
b) 108 km
c) 464 km
d) 62 km
e) 243 km
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11/10/14
Calculate the pumped storage capacity
Two of the largest dams in Australia’s Snowy Hydro scheme are Lake Eucumbene (4500 GL storage capacity) and Blowering Dam (1628 GL storage capacity), which is situated 803m below Lake...
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Physical Science
11/03/14
A car accelerates from 0 mph to 40 mph in 5 seconds as it merges into a northbound lane of traffic. What is the acceleration of the car?
Need help with this!
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Physical Science
10/28/14
boyle's law states that the volume of a gas is inversely proportional to its pressure if the?
A)temperature and number of particles are consistent
B)temperature reaches absolute zero
C)number of particles are doubled
D)temperature and number of particles are doubled
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Physical Science
10/28/14
what is the result of a force distributed over and area
A)temperature
B)volume
C)pressure
D)mass
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Physical Science
10/28/14
flammability is a material's ability to burn in the presence of
A) hydrogen
B)nitrogen
C)oxygen
D)carbon dioxide
Physical Science
10/28/14
a material that is malleable and conducts electricity is most likely
A)wood
B)ice
C) a metal
D) carbon dioxide
Physical Science
10/28/14
a mixture can be classified as a solution suspension or colloid based on the?
A) number of particles it contains
B) size of its largest particles
C)color of its particale
D) size of its smallest particales
Are they any calculation/formula of Ocean Thermal Energy Conversion that uses the unit of power or energy?
example: kWh/d/y, w/m2 etc..
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Physical Science
10/04/14
car goes from 22.0 miles hour to 74.0 miles hour in 8.56 seconds
car goes from 22.0 miles hour to 74.0 miles hour in 8.56 seconds
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