HELP!!!!

HOw many electrons make up a charge of -30 micro coulombs???

17 years ago

Use the Fundamental Theorem of Calculus to find the derivative of g(x)=1/(1+t^5)dt in the interval 1 to x.

14 years ago

You’ve recently completed a tour and now it’s time to write the customer a ‘Thank you’ note. Here’s the customer information: Name - Joe Smith Tour - Conducted in Apt. 1107 with a 2-bed 2-bath Interests - Pool, 24-hour fitness center, second bedroom that...

14 years ago

A discus thrower (with arm length of 1.2 m) starts from rest and begins to rotate counterclockwise with an angular acceleration of 3.0 rad/s2. (a) How long does it take the discus thrower's speed to get to 4.5 rad/s? (b) How many revolutions does the thro...

14 years ago

A particle is moving clockwise in a circle of radius 1.75 m. At a certain instant, the magnitude of its acceleration is a = a = 39.0 m/s2, and the acceleration vector has an angle of θ = 50° with the position vector, as shown in the figure. At this instan...

14 years ago

A race car is making a U-turn at constant speed. The coefficient of friction between the tires and the track is μs = 1.0. If the radius of the curve is 40 m, what is the maximum speed at which the car can turn without sliding? Assume that the car is perfo...

14 years ago

A demonstration gyroscope consists of a uniform disk with a 39-cm radius, mounted at the midpoint of a light 56-cm axle. The axle is supported at one end while in a horizontal position. How fast is the gyroscope precessing, in units of rad/s, if the disk...

14 years ago

A force, F = (2x + 5y) N, is applied to an object at a point whose position vector with respect to the pivot point is r = (2x + 4y + 5z) m. Calculate the torque created by the force about that pivot point.

14 years ago

A thin uniform rod (length = 1.3 m, mass = 4.1 kg) is pivoted about a horizontal frictionless pin through one of its ends. The moment of inertia of the rod through this axis is 1/3 m L2. The rod is released when it is 55° below the horizontal. What is the...

14 years ago

The turbine and associated rotating parts of a jet engine have a total moment of inertia of 23 kg m2. The turbine is accelerated uniformly from rest to an angular speed of 140 rad/s in a time of 27 s. (a) Find the angular acceleration. (b) Find the net to...

14 years ago

A racquetball with a diameter of 5.6 cm and a mass of 42 g is cut in half to make a boat for American pennies made after 1982. The mass and volume of an American penny made after 1982 are 2.5 g and 0.36 cm3. How many pennies can be placed in the racquetba...

14 years ago

A man of mass 80 kg and density 970 kg/m3 stands in a shallow pool with 31% of the volume of his body below water. Calculate the normal force the bottom of the pool exerts on his feet. (Take the positive direction to be up. Indicate the direction with the...

14 years ago

A fountain sends water to a height of 116 m. What is the difference between the pressure of the water just before it is released upward and the atmospheric pressure? (The density of water is 1000 kg/m2.)

14 years ago

A ball of circumference 74.2 cm and mass 605 g is forced to the bottom of a swimming pool and then released. After initially accelerating upward, it rises at a constant velocity. (The density of water is 103 kg/m3.) (a) Calculate the buoyant force on the...

14 years ago

A Foucault pendulum is designed to demonstrate the effect of the Earth's rotation. A Foucault pendulum displayed in a museum is typically quite long, making the effect easier to see. Consider a Foucault pendulum of length 16 m with a 109-kg brass bob. It...

14 years ago

a steel has a steel lid that is stuck tightly to the can. is it possible to open the can by running it under hot water? 1. yes 2. no 3. yes but only if the bottom of the can is submerged in ice water while the top is run by hot water. 4. no but could open...

14 years ago

Find the ratio of the gravitational force on the Moon due to the Earth to the gravitational force on the Moon due to the Sun. (The mass of the Earth is 5.97 1024 kg, the mass of the Moon is 7.36 1022 kg, the mass of the Sun is 1.99 1030 kg, and the averag...

14 years ago

A light beam containing red and violet wavelengths is incident on a slab of quartz at an angle of incidence of 45.0°. The index of refraction of quartz is 1.455 at 660 nm (red light), and its index of refraction is 1.468 at 410 nm (violet light). Find the...

13 years ago

If y = sin−1 x, then sin y = x,−π/2 ≤ y ≤ π/2. Therefore, to find y = sin−1(−3/22, we must find an angle y whose sine is -3/2. There are many possible angles with this sine, but the range of y = sin−1 x is restricted to [ , ] and so y must be in this inte...

12 years ago

A wood cube 0.20m on each side has a density of 730kg/m3 and floats levelly in water. What mass has to be placed on top of the wood so that its top is just at the water level?

11 years ago

A sonar generator on a submarine produces periodic ultrasonic waves at a frequency of 2.60MHz . The wavelength of the waves in seawater is 5.90×10−4m . When the generator is directed downward, an echo reflected from the ocean floor is received 11.0s later...

11 years ago

CELLS THAT HAVE DNA BUT LACK A NUCLEUS ARE MEMBERS OF THE KINGDOM? A)VIRUSES B)MONERA C)FUNGI D)ANIMILIA E)PROTISTA

11 years ago

Red is dominate over blue, give the genotype for an individual who is heterozygous red, homozygous red, and blue.

11 years ago

What is an example of a human genetic problem?

11 years ago

A new oil field has just begun production. The first oil removed is the easiest to get out, and so production falls as time goes on. The instantaneous rate at which oil can be extracted is 14% of the amount of oil remaining per year. Here, "instantaneous"...

9 years ago

the characteristics of the inquiry process or the scientific method

7 years ago

what is the usual relationship between oil prices and oil production?Select all that apply.

6 years ago

Solve each equation and check your solution. 6x-5x+2=12-19

8 months ago

THIS IS NOT MY HOMEWORK, I am having an interview for a job and they asked me this question. What would I document if this occurs.

14 years ago

Yes, Thank you. You explianed everything, now where do I start?

14 years ago

thank for your help, I made it brief and straight to the point.

14 years ago

how did you get the number 1355 for the sqrt of mass

14 years ago

Can you write the equations that you exactly used for each problem

14 years ago

a) 4.5/3= 1.5 s b) i'm still confused of how to get the number of revolutions c) a=v^2/r the answer is 5.4 m/s d) at=r alpha but we need to find alpha first to get at

14 years ago

i just want to find the number of revolutions , i know that 2 pi rad= 1 rev but how do we find that in this question.

14 years ago

thank you

11 years ago

That didn't help. I meant like we have to make up our own problem to use on a quiz. She asked us to make 5 human genetic problems with answers but im not really sure what a problem like that would be like. Is that just the punnet squares and probability a...

11 years ago

THAT DIDN'T HELP!!!!!!!!!!!!!!!!!!!!

11 years ago

nope like genotypic ratio and phenotypic ratio....thanks though i figured it out...

11 years ago

What are the answers I need this plz!!!!!

4 years ago