An arrow is shot straight up at an initial velocity of 200 meters per seconds. How long will it be before beginning to fall
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Definition1/18
20.40
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Term1/18
A rock is dropped from a cliff and hits the ground 6.0 seconds later How high is the cliff
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176.4 meters
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Term1/18
A rock falls off a bridge and hits the water 8 seconds later How high is the bridge
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Definition1/18
A+ the answer is 313.6
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Term1/18
A hammer is dropped off a roof of an apartment building that is 80 meters high How long will it take to hit the ground
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The hammer will take square-root(2x80/9.8)= 4.04 seconds to hit
the ground.
The distance is related to the time by s=v0t + 1/2 gt^2 where
vo, the initial velocity is=0.
The answer is 4.04 or rounded is 4 seconds.
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Term1/18
A jogger runs at an average speed of 5 ms for 3 minutes then finishes with an average speed of 4 ms for 2 minutes What is his average speed in ms for the run
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4.6ms
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Term1/18
A baseball is hit straight up at an initial velocity of 150MS. what will be the baseballs speed when it hits the ground
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20.40
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Term1/18
A man and a woman exert a total of 900 N by pushing a car 20 meters across the street The man exerts twice as much force as the woman How much work does the man do
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The man exerts a force of 600 N and the woman exerts a force of 300 N. Work done by the man = Force x displacement = 600 x 20 = 12,000 J Hence, the man performs 12,000 joules of work.
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Term1/18
Which term is synonymous with organic shapes
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Free-form shapes
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The tangent of an angle equals the ratio of the
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Sine of the angle to its cosine.
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Term1/18
How much work is done when a 6.0 n weight is raised 2.0 meters off the ground
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12j
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Term1/18
If I have a right triangle The side opposite angle A is 6 meters and the side adjacent angle A is 8 meters How long is the hypotenuse
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The hypotenuse is: 10
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Term1/18
When a golf club strikes a golf ball the force exerted by the ball on the club depends on
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Definition1/18
the mass of the ball and club and the velocity of the club
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Term1/18
Isaac Newton can be credited with all of these except
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Definition1/18
developed the theory of relativity
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Term1/18
Which of these descriptions applies to matte surfaces
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reflect a soft, dull light
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Term1/18
A pulley system is used to lift a 2000 newton engine up a distance of 3 meters The operator must apply a force of 250 newtons to the chain of the pulley system to lift the motor To lift the engine fi
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250 newtons
A+ Answers
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Term1/18
A rifle is shot straight up and the bullet leaves the barrel at a speed of 245 m s How long will it take the bullet to hit the ground
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50 sec.
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You drive a car 2 hours at 40 miles per hour 2 hours at 60 miles per hour how many miles will you travel
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If you drive a car at 40 miles per hour for two hours,then the
distance covered will be 80 miles.If you drive the car for another
2 hours at 60 miles per hour ,then you will cover another 120
miles.The total distance you will cover is thus 80 miles + 120
miles = 200 miles.
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Which of these statements is true about the middle coloines
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They had a large variety of farm products
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Cards in this guide (18)
An arrow is shot straight up at an initial velocity of 200 meters per seconds. How long will it be before beginning to fall
20.40
A rock is dropped from a cliff and hits the ground 6.0 seconds later How high is the cliff
176.4 meters
A rock falls off a bridge and hits the water 8 seconds later How high is the bridge
A+ the answer is 313.6
A hammer is dropped off a roof of an apartment building that is 80 meters high How long will it take to hit the ground
The hammer will take square-root(2x80/9.8)= 4.04 seconds to hit
the ground.
The distance is related to the time by s=v0t + 1/2 gt^2 where
vo, the initial velocity is=0.
The answer is 4.04 or rounded is 4 seconds.
A jogger runs at an average speed of 5 ms for 3 minutes then finishes with an average speed of 4 ms for 2 minutes What is his average speed in ms for the run
4.6ms
A baseball is hit straight up at an initial velocity of 150MS. what will be the baseballs speed when it hits the ground
20.40
A man and a woman exert a total of 900 N by pushing a car 20 meters across the street The man exerts twice as much force as the woman How much work does the man do
The man exerts a force of 600 N and the woman exerts a force of 300 N. Work done by the man = Force x displacement = 600 x 20 = 12,000 J Hence, the man performs 12,000 joules of work.
Which term is synonymous with organic shapes
Free-form shapes
The tangent of an angle equals the ratio of the
Sine of the angle to its cosine.
How much work is done when a 6.0 n weight is raised 2.0 meters off the ground
12j
If I have a right triangle The side opposite angle A is 6 meters and the side adjacent angle A is 8 meters How long is the hypotenuse
The hypotenuse is: 10
When a golf club strikes a golf ball the force exerted by the ball on the club depends on
the mass of the ball and club and the velocity of the club
Isaac Newton can be credited with all of these except
developed the theory of relativity
Which of these descriptions applies to matte surfaces
reflect a soft, dull light
A pulley system is used to lift a 2000 newton engine up a distance of 3 meters The operator must apply a force of 250 newtons to the chain of the pulley system to lift the motor To lift the engine fi
250 newtons
A+ Answers
A rifle is shot straight up and the bullet leaves the barrel at a speed of 245 m s How long will it take the bullet to hit the ground
50 sec.
You drive a car 2 hours at 40 miles per hour 2 hours at 60 miles per hour how many miles will you travel
If you drive a car at 40 miles per hour for two hours,then the
distance covered will be 80 miles.If you drive the car for another
2 hours at 60 miles per hour ,then you will cover another 120
miles.The total distance you will cover is thus 80 miles + 120
miles = 200 miles.
Which of these statements is true about the middle coloines
A jogger runs at an average speed of 5 ms for 3 minutes then finishes with an average speed of 4 ms for 2 minutes What is his average speed in ms for the run
All objects change velocity as they move toward earth at a rate of 9.8 ms2 due to which factor of gravity
Force can be calculated as pressure x area Which of the following will produce the most force
What does the law of conservation of energy explain
What if your body applies force to the ground as weight If you weigh 450 newtons and carry a backpack that weighs 45 newtons what is the net force applied downward to the ground
What term describes the transfer of energy between objects that have different average kinetic energies
What instrument can be used to calculate specific heat capacity
What does the law of conservation of energy explain
What term describes an educated guess about what the answer to a question might be
How do scientists analyze the data they collect
The custom of watching fireworks on the Fourth of July would be studied by this social science
A jogger runs at an average speed of 5 ms for 3 minutes then finishes with an average speed of 4 ms for 2 minutes What is his average speed in ms for the run