01/31/22

What is the gauge pressure at the bottom of the container?
A large container contains 0.250 m layer of alcohol above 0.500 m of water. What is the gauge pressure at the boundary between the alcohol and water? What is the gauge pressure at the bottom of the... more
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09/22/21

Write an equation of the line perpendicular to the given line that contains P. p(4,4);y=-2x-8
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03/25/21

How can I solve this physics question? Someone help please?!
An aluminum wire having a cross-sectional area equal to 6.00  10-6 m2 carries a current of 4.50 A. The density of aluminum is 2.70 g/cm3. Assume each aluminum atom supplies one conduction electron... more
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11/25/20

In the drawing, the box is being pulled up the ramp at a constant velocity. The ramp's angle is 30 degrees.
In the drawing, the box is being pulled up the ramp at a constant velocity. The ramp's angle is 30 degrees.A. How does the force applied parallel to the ramp compare to the force of friction?B. If... more
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11/20/20

physics question
A rightward force is applied to a crate to push it across the floor at a constant speed. Ignore air resistance.The applied force is 6.80 N.The crate is 10 kg.What is the value of the opposing... more
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11/03/20

A shopper pushes a 5.32 kg grocery cart with a 12.7 N force directed at -28.7° below horizontal. A friction force of 8.33 N pushes back against the motion. What is the acceleration of the cart?
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11/02/20

A 42.2 kg sled is pulled forward with a 143 N force across ground with uk = 0.269. What is the net force on the sled?
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11/01/20

Physics Circular Motion
In the Bohr model of the hydrogen atom, the speed of the electron is approximately 2.32 × 106 m/s. (a) Find the central force acting on the electron as it revolves in a circular orbit of radius... more
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10/27/20

Wavelength and Speed
You observe a transverse wave traveling on a slinky. You notice that 7 waves pass by in 4.0 seconds.You measure the distance to be 0.75m from crest to crest. How fast is the wave travelling? 
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10/27/20

Find velocity given mass
You throw a 0.8 kg dodgeball at the head of a 30 kg 5th grader at rest. The ball is traveling at 9 m/s before it hits the student and has slowed to 2 m/s as it bounces off of them. With what... more
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10/27/20

can someone help with gravity calculations

The Earth’s moon has a mass of 7.34 x 1022 kg and is 3.81 x 108 m above LHS, which has a mass of 1.28 x 106 kg.a. Find the strength of the gravitational force between the Moon & LHS.Fg=?=
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10/27/20

In which of the following scenarios is work done?
a. A weightlifter holds a barbell overhead for 2.5 s. b. A construction worker carries a heavy beam while walking at constant speed along a flat surface. c. A car decelerates while traveling on a... more
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10/22/20

Convert 5.50 x 104 revolutions per minute into radians per second.
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10/18/20

Physics Question
A flying squid (family Ommastrephidae) is able to "jump" off the surface of the sea by taking water into its body cavity and then ejecting the water vertically downward. A 0.94-kg squid is able to... more
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10/16/20

Kinematics Equation

An object, initially traveling at a velocity of 72 m/s, experiences an acceleration of -9.8 m/s^2. How much time will it take it to come to rest?
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10/15/20

Applied Force can be measured using either Newtons OR Milliliters depending on how you are choosing to take the measurement.

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10/14/20

What is the direction of their vector sum?
Vector G is 40.3 m long in a -35.0 degree direction. Vector H is 63.3 m long in a 270 degree direction. What is the direction of their vector sum?
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10/14/20

Mrs. Griffin bought a new tree and attached a 15-foot wire set at an angle of elevation of 25​°​ to support her tree from the top. Find the height of the tree.

Mrs. Griffin bought a new tree and attached a 15-foot wire set at an angle of elevation of 25​°​ to support her tree from the top. Find the height of the tree.
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10/14/20

Miss Banks was on a cruise ship (and brought along her clinometer). She sighted the top of a 208-foot cliff at a 17​°​ angle of elevation.
Miss Banks was on a cruise ship (and brought along her clinometer). She sighted the top of a 208-foot cliff at a 17​°​ angle of elevation. If the ship sits 8 ft above the water, how far was the... more
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10/13/20

Which of the following predictions is correct about why the object does not accelerate downward?
An object is at rest on the ground. The object experiences a downward gravitational force from Earth.
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10/13/20

A 5.0-kg watermelon is dropped from a tall building. If the drag force on the watermelon is 34 Newtons, what is the acceleration of the watermelon?
A 5.0-kg watermelon is dropped from a tall building. If the drag force on the watermelon is 34 Newtons, what is the acceleration of the watermelon?
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10/12/20

Algebra II Scientific Notion
(0.00057)(77,426x103)(38,000,000)(0.000437x10-4)how would you get the answer in scientific notion?
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10/12/20

a physics question on impulse

 rocket with a mass of 2.5 kg is traveling with a velocity of 74 m/s. The force of the launch is 24.5 N.What is momentum of the rocket? What is the time for the rocket to travel during this launch?   more
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10/12/20

physics help from 12pm-1pm today
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10/11/20

Need Help With This Physics 3 Questions?
a. An object is placed 4.0 m away from a thin converging lens of focal length +1.0 m. The image formed by the lens is... more
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