10/26/17

what is the correct unit for work
I need assitance with this pls help
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10/26/17

Twice the difference of a number and 6 is equal to three times the sum of the number and 7.
just need an answer think it needs to be simplified if possible 
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10/26/17

Scalar product
The power developed by a certain engine is a function of time according to P = 2 + 3t2 + 4t3where the units are SI. The work done by the engine in the interval from t = 0 to t = 2 s is?
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10/26/17

Friction with curve
A proud new Jaguar owner drives her car at a speed of 35 m/s into a corner. The coefficients of friction between the road and the tires are 0.70 (static) and 0.40 (kinetic). What is the minimum... more
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10/25/17

Friction forces
A tired worker pushes a heavy (100-kg) crate that is resting on a thick pile carpet. The coefficients of static and kinetic friction are 0.6 and 0.4, respectively. The worker pushes with a force of... more
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10/25/17

how do you know when a point in a graph is corresponding to an ordered pair?
For example, point D is (-5,0) what corresponding point is corresponding to point D  
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10/25/17

Friction and stopping distance of a truck
A 50-kg box is placed in the bed of a truck. The coefficient of static friction between the box and the truck bed is 0.54. If the truck is traveling at 100 km/h then calculate the minimum distance... more
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10/25/17

Friction forces
A block with a mass of 10 kg is at rest on a horizontal surface. The coefficient of static friction between the block and the surface is 0.30, and the coefficient of kinetic friction is 0.25. A... more
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10/25/17

What equation is perpendicular to y=-5x+1
Which equation is perpendicular to the one in the questions  
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10/25/17

Free-body diagram with pulley
An object with a mass M = 250 g is at rest on a plane that makes an angle θ = 30º above the horizontal. The coefficient of kinetic friction between M and the plane is µk = 0.100. Mass M is... more
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10/25/17

Charles’s law states that the volume of a gas is directly related to the absolute temperature when there is no change in the pressure or amount of gas
A. A sample of gas in a balloon has an initial temperature of 38 ∘C and a volume of 1670 L . If the temperature changes to 72 ∘C , and there is no change of pressure or amount of gas, what is the... more
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10/25/17

Slope: 1/6, ordered pair: (0,-2/5)
Find the equation in slope intercept form of the line with the given slope that passes through the point with the given coordinates   
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10/25/17

What is the new speed
A 7-kg bowling ball rolls at 9 m/s towards the stationary pins. The bowling ball hits the 2-kg pin, launching it forward at 14 m/s. What is the new speed of the bowling ball
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10/25/17

Applications of quadratics another toy rocket
 A toy rocket is shot vertically into the air from a launching pad 5 feet above the ground with an initial velocity of 136 per second. The height h in feet of the rocket above the ground at t... more
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10/25/17

Applications of quadratics. Toy rocket
 A toy rocket is launched from a platform 4.2 m above the ground in such a way that is height, h (in meters) after t seconds is given by the equation  h = -4.9t2 + 28.7t +4.2  How long will it... more
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10/24/17

What is the slope of the line through(-1,8) and (3,-4)
Please help
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10/24/17

The mass of the earth is 5.98 1024 kg, the mass of the moon is 7.36 1022 kg, and the distance between the centers of the earth and the moon is 3.82 108 m.
How far is the center of mass of the earth-moon system from the center of the earth?
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10/24/17

A 0.106 kg rock is attached to a 2.02 m long string and swung in a horizontal circle at a speed of 29.4 m/s. Find the tension in the string. Neglect the effect
Of gravity.
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10/24/17

simplify the expression: 4d+9-d-8
it says to not solve the problem but you have to simplify the expression using the distributive property
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10/24/17

PHYSICS QUESTION! PLEASE HELP
A conductor in a train travelling at 12.0 km/h [N] relative to the ground while he walks across the aisle at 5.0 km/h [E] relative to the train. What is his velocity relative to the ground?
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10/24/17

who was the common enemy of sparta and athens
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10/24/17

Doctors use radioactive iodine as a tracer in diagnosing certain thyroid gland disorders. This type of iodine decays in such a way that the mass remaining after
m(t) = 6e−0.087t where m(t) is measured in grams.   a) Find the initial mass (mass at time t = 0).   b) How much of the mass remains after 20 days?  
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10/24/17

when finding the charge of a capacitor, do you add the magnitude of the two plates together, or take the magnitude of one plate as the overall charge?
when finding the charge of a capacitor, do you add the magnitude of the two plates together, or take the magnitude of one plate as the overall charge? For example, if one plate is -11 Coulombs, is... more
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10/23/17

One number is one more than twice another. Their sum is−5. Find the numbers.
How do i solve this word problem step by step?
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10/23/17

The faster you go the stronger the force of air resistance true or false.
true or false i cant figure it out i dont know
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