4,347 Answered Questions for the topic Science
What is the gauge pressure at this depth?
The depth of the Pacific Ocean in the Mariana Trench is 36,198 ft. What is the gauge pressure at this depth?
11/15/20
Find the gauge pressure (in psi) at the bottom of a freshwater swimming pool that is 17.4 ft deep.
Find the gauge pressure (in psi) at the bottom of a freshwater swimming pool that is 17.4 ft deep.
11/15/20
What is the mass of the helium (in kg)?
A large balloon used to sample the upper atmosphere is filled with 335 m3 of helium. What is the mass of the helium (in kg)?
11/15/20
What volume did the hydrogen occupy?
The total mass of the hydrogen gas in the Hindenburg zeppelin was 18,000 kg. What volume did the hydrogen occupy? (Assume that the temperature of the hydrogen was 0°C and that it was at a pressure...
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11/15/20
What is the total outward force on the window?
A viewing window on the side of a large tank at a public aquarium measures 54 in. by 59 in. The average gauge pressure from the water is 4 psi. What is the total outward force on the window?
11/15/20
What is the net outward force (in lb) on the sidewall because of the air pressure? (Enter the magnitude.)
A large truck tire is inflated to a gauge pressure of 72 psi. The total area of one sidewall of the tire is 1,170 in2. What is the net outward force (in lb) on the sidewall because of the air...
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11/15/20
what pressure does this produce on the air in the pump?
A bicycle tire pump has a piston with area 0.45 in2. If a person exerts a force of 16 lb on the piston while inflating a tire, what pressure does this produce on the air in the pump?
11/14/20
What force had to act on that end?
In the figure, the rock weighs 225 lb and is lifted 1 ft by the lever.(a) How much work is done?(b) The other end of the lever is pushed down 3 ft while lifting the rock. What force had to act on...
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how fast (in m/s) is the tool going just before it hits the ground?
A worker at the top of a 551-m-tall television transmitting tower accidentally drops a heavy tool. If air resistance is negligible, how fast (in m/s) is the tool going just before it hits the ground?
11/14/20
How high (in m) will the swing be at the high point?
A child on a swing has a speed of 3.7 m/s at the low point of the arc.How high (in m) will the swing be at the high point?
11/14/20
What is its speed when it hits the ground?
A student drops a water balloon out of a dorm window 11 m above the ground. What is its speed when it hits the ground?
11/14/20
how fast are the divers going when they hit the water?
The cliff divers at Acapulco, Mexico, jump off a cliff 25.2 m above the ocean. Ignoring air resistance, how fast are the divers going when they hit the water?
Science Physics
11/14/20
finding speed of bullet using work energy theorem
A bullet of mass 0.0385 kg is fired toward board with a thickness of 0.0225 m. Its speed is 375 m/s before making contact with the board and it passes through the board. The average force exerted...
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Science Physics
11/14/20
still not getting answer. finding height using work-energy theorem
A block is released from rest at point A and slides down a curved slope to point B, then continues until it comes to rest at point C. There is no friction from point A to point B, but there is...
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11/14/20
What is Newton's 3 laws of motion?
What is Newton's 3 laws of motion?Month 11, Day 14For a mass having the weight equal to the Day recorded in 2 (For the example given, 15kg) find the weight of the mass by using the formula F=W=mg...
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finding how much power at final
A car engine produces a constant power of P = 350 hp. The car and motor have a combined mass of m = 2200 kg.A top fuel dragster of mass m = 1000.0 kg can accelerate and cover 305 m in 4.15 secs...
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11/13/20
What is Newton's 3 laws of motion?
What is Newton's 3 laws of motion?Month 11, Day 14For a mass having the weight equal to the Day recorded in 2 (For the example given, 15kg) find the weight of the mass by using the formula F=W=mg...
more
11/13/20
How much work is done?
In the figure, the rock weighs 225 lb and is lifted 1 ft by the lever.How much work is done?The other end of the lever is pushed down 3 ft while lifting the rock. What force had to act on that end?
11/13/20
how much work (in J) does the driver do?
A motorist runs out of gas on a level road 220 m from a gas station. The driver pushes the 1,220 kg car to the gas station. If a 160 N force is required to keep the car moving, how much work (in J)...
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11/13/20
Find the ratio of their speeds immediately afterward.
Two persons on ice skates stand face to face and then push each other away (see figure below). Their masses are 70 and 90 kg.Find the ratio of their speeds immediately afterward.
11/13/20
How much energy (in J) is stored in the spring under this circumstance?
A 38 kg child uses a pogo stick to bounce up and down. The spring constant, k, of the toy equals 9,300 N/m.How much energy (in J) is stored in the spring under this circumstance?
Science Physics
11/13/20
~ physics question ~
Anna Litical makes the following claim:"The vertical velocity (vy) 1.0 second before reaching the peak is the same size as the vertical velocity (vy) 1.0 second after reaching the peak. The same...
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11/12/20
How high (in m) will the swing be at the high point?
A child on a swing has a speed of 3.7 m/s at the low point of the arc.
how fast are the divers going when they hit the water?
The cliff divers at Acapulco, Mexico, jump off a cliff 25.2 m above the ocean. Ignoring air resistance, how fast are the divers going when they hit the water?
11/12/20
What is their kinetic energy?
A bicycle and rider going 14 m/s approach a hill. Their total mass is 57 kg.(a) What is their kinetic energy?(b) If the rider coasts up the hill without pedaling, how high above its starting level...
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