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Physics Math

04/21/23

Soccer Ball Velocity Question

A soccer ball is kicked straight up from the ground with an initial velocity of 32 feet per second, then its height above the earth in feet is given by h(t) = —16t2 + 32t, where t is time in... more

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Physics

04/21/23

A Carnot engine s operating between temperature T1 and T2 and has the efficiency of 1/6 .When thetemperature T2 is lowered by 53Kit efficiency becomes 1/4. Find temperatures T1 and T2.

A Carnot engine is operating between temperature T1 and T2 and has the efficiency of 1/6 .When the temperature T2 is lowered by 53K it efficiency becomes 1/4. Find temperatures T1 and T2.

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Physics

04/21/23

An object is placed in front of a diverging lens with a focal length of 16.4 cm. For each object distance, find the image distance and the magnification.

(a) 32.8 cmlocation:magnification:(b) 16.4 cmlocation:magnification:(c) 8.2 cmlocation:magnification:

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Physics Math

04/20/23

Determine how much time it takes a rocket to reach its full height.

The path of a small rocket is given by the equation h(t)=-16^2+128t where h is height in feet and t is time in seconds. Determine how much time it takes a rocket to reach its full height.

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Physics

04/19/23

An object is placed in front of a diverging lens with a focal length of 16.4 cm. For each object distance, find the image distance and the magnification.

(a) 32.8 cmlocation:magnification:(b) 16.4 cmlocation:magnification:(c) 8.2 cmlocation:magnification:

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Physics Math Calculus

04/19/23

A rectangular swimming pool 50 ft long, 20 ft wide, and 16 ft deep is filled with water to a depth of 15 ft. Use an integral to find the work required to pump all the water out over the top. (Take... more

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Physics

04/19/23

ABCDEF is a regular hexagon . The centre of hexagon is a point O. Then the value of (vectors) AB + AC + AD + AE + AF in terms of AO is?

also, how is the direction given to the vectors?

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Physics

04/19/23

Can you help me please?

A freezer maintains an interior temperature inside of −18.0°C and has a coefficient of performance of 3.00. The freezer sits in a room with a temperature of 24.0°C. The freezer is able to... more

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Physics

04/18/23

A cylindrical blood vessel is partially blocked by the buildup of plaque. At one point, the plaque decreases the diameter of the vessel by 74.0%. The blood approaching the blocked portion

A cylindrical blood vessel is partially blocked by the buildup of plaque. At one point, the plaque decreases the diameter of the vessel by 74.0%. The blood approaching the blocked portion has... more

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Physics

04/17/23

In 1923, the United States Army set a record for in-flight refueling of airplanes. Using two refueling planes, an Airco DH-4B biplane was able to remain in flight for 37 h. During the flight, the re

In 1923, the United States Army set a record for in-flight refueling of airplanes. Using two refueling planes, an Airco DH-4B biplane was able to remain in flight for 37 h. During the flight, the... more

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Physics

04/17/23

An object is placed in front of a converging lens with a focal length of 20.2 cm. For the object distance, find the image distance and the magnification.

(a) 10.1 cmlocation:magnification:

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Physics

04/17/23

An object is placed in front of a converging lens with a focal length of 20.2 cm. For the object distance, find the image distance and the magnification.

(a) 40.4 cmlocation:magnification:

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Physics

04/17/23

A magnifying glass has a converging lens of focal length of 18.6 cm. At what distance from a nickel should you hold this lens to get an image with a magnification of +1.67?

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Physics

04/17/23

The image of the United States postage stamps in the figure below is 1.55 times the size of the actual stamps in front of the lens.

Determine the focal length of the lens if the distance from the lens to the stamps is 2.66 cm.

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Physics

04/16/23

angular displacement

An athlete is performing a vertical jump. The first jump indicates max knee flexion prior to the jump. The knee flexion angle is 86 degrees and the time is 2.25 seconds. At peak height, the knee... more

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Physics

04/16/23

angular velocity

A femur which is 0.5 m long (meaning the end of the femur is 0.5 m from the axis of rotation) moves through an angle of 0.52 rad in 0.5s.a) what is the average angular velocity of the end of the... more

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Physics

04/16/23

angular velocity

The hammer throwers arm is 0.8m long and the hammer extends an additional 1.2m. It takes 0.75 seconds to complete 1 revolution (angular displacement of 6.28 rad) before the thrower releases the... more

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Physics

04/16/23

For an object having a mass of 10 times the day given in the previous section, calculate the weight of the object on the moon assuming acceleration due to gravity on the moon is 1.6 m/s2 Show all work

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Physics

04/16/23

A 7.50 cm pencil is placed upright at a distance 53.0 cm away from the center of a convex mirror. The mirror's radius of curvature is 45.0 cm.

a) Calculate the image distanceb) What is the magnification?

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Physics

04/14/23

The side-view mirror of an automobile has a radius of curvature of 13.0 cm. The mirror produces a virtual image one-third the size of the object. How far is the object from the mirror?

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Physics

04/14/23

A glowing electric light bulb placed 15 cm from a concave spherical mirror produces a real image 8.5 cm from the mirror.

a.) If the light bulb is moved to a position 25 cm from the mirror, what is the position of the image?b.) What are the magnifications of the first and final images?

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Physics

04/14/23

A 7.00 cm pencil is placed upright at a distance 57.0 cm away from the center of a convex mirror. The mirror's radius of curvature is 45.0 cm.

a.) Calculate the image distance.b.) What is the magnification?

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Physics

04/14/23

Speed and Velocity

Assume the Earth moves in a perfectly circular orbit around the sun, The earth's orbital speed around the sun is known to be 30 km/s. Light travels at the speed of 3 x 108 m/s in free space.... more

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Physics Electrical Engineering

04/14/23

How do I solve this?

A V-6 internal combustion engine burns fuel at the rate of 4.3 gallons per hour. The fuel has a heating value of 54.6 kJ/mL. Calculate the useful output power (in kilowatts) to the power train... more

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Physics Math

04/14/23

How do I solve this?

The Red Bull Cliff Diving World Series this year will take place at Boston Harbor starting June 3rd. Ellie Smart, from Missouri, will be competing. She is one of eight permanent women cliff divers... more

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Soccer Ball Velocity Question

A Carnot engine s operating between temperature T1 and T2 and has the efficiency of 1/6 .When thetemperature T2 is lowered by 53Kit efficiency becomes 1/4. Find temperatures T1 and T2.

An object is placed in front of a diverging lens with a focal length of 16.4 cm. For each object distance, find the image distance and the magnification.

Determine how much time it takes a rocket to reach its full height.

An object is placed in front of a diverging lens with a focal length of 16.4 cm. For each object distance, find the image distance and the magnification.

Math Homework help needed

ABCDEF is a regular hexagon . The centre of hexagon is a point O. Then the value of (vectors) AB + AC + AD + AE + AF in terms of AO is?

Can you help me please?

A cylindrical blood vessel is partially blocked by the buildup of plaque. At one point, the plaque decreases the diameter of the vessel by 74.0%. The blood approaching the blocked portion

In 1923, the United States Army set a record for in-flight refueling of airplanes. Using two refueling planes, an Airco DH-4B biplane was able to remain in flight for 37 h. During the flight, the re

An object is placed in front of a converging lens with a focal length of 20.2 cm. For the object distance, find the image distance and the magnification.

An object is placed in front of a converging lens with a focal length of 20.2 cm. For the object distance, find the image distance and the magnification.

A magnifying glass has a converging lens of focal length of 18.6 cm. At what distance from a nickel should you hold this lens to get an image with a magnification of +1.67?

The image of the United States postage stamps in the figure below is 1.55 times the size of the actual stamps in front of the lens.

angular displacement

angular velocity

angular velocity

For an object having a mass of 10 times the day given in the previous section, calculate the weight of the object on the moon assuming acceleration due to gravity on the moon is 1.6 m/s2 Show all work

A 7.50 cm pencil is placed upright at a distance 53.0 cm away from the center of a convex mirror. The mirror's radius of curvature is 45.0 cm.

The side-view mirror of an automobile has a radius of curvature of 13.0 cm. The mirror produces a virtual image one-third the size of the object. How far is the object from the mirror?

A glowing electric light bulb placed 15 cm from a concave spherical mirror produces a real image 8.5 cm from the mirror.

A 7.00 cm pencil is placed upright at a distance 57.0 cm away from the center of a convex mirror. The mirror's radius of curvature is 45.0 cm.

Speed and Velocity

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