Physics

If I weigh 700 N on Earth and 5300 N on the surface of a nearby planet Mars, what is the acceleration due to g

Two forces act on a 55 kg object. One force has magnitude 65N directed 59° clockwise from the positive x axis, and the other has a magnitude 35 N at 32° clockwise from the positive y axis. What is the

The phase angle of an LRC series circuit with an inductive reactance of 200 Ω,

. . .and a capacitive reactance of 100 Ω is 40.0°. What is the value of the resistor in this circuit? A)200 Ω B)265 Ω C)119 Ω D)100 Ω E)156 Ω If you could walk me through the steps, that would b

It takes 3920 N to accelerate a car at a rate of 3.42 m/s2. What is the mass of the car

It takes 3920 N to accelerate a car at a rate of 3.42 m/s2. What is the mass of the car? (thanks for any help. im taking the course online, and the prof is little help)-F = ma => 3920 = m* 3.42 => m

Electric Flux Through a Spherical Surface

A thin spherical shell of radius 20.0 cm has 5.0 µC of charge uniformly distributed over its surface. What is the electric flux through an area of 1.00 m2 of a spherical surface concentric with the sh

Which of the Following Unit Equations Is True

a) N/V = m/C b) N·C = V/m c) N·m = V·C d) N·V = N·m e) N/m = V/C-a) N/V = m/C Cross multiply; NC =? Vm NO b) N·C = V/m No c) N·m = V·C = Joules = YES d) N·V = N·m NO e) N/m = V/C NO

A 27 kg object is accelerated at a rate of 2 m/s2. What force does the object experience

a. 14 N b. 74 N c. 54 N d. 98 N Thank you!!-F = ma Force = mass x acceleration In this case, arent your mass 27kg and force 2m/s2? Therefore, takes 27 x 2 = 54N-F=ma so F = 27kg x 2 m/s^2 F= 54 N

How can we see a blackhole if light doesn't come back from it

I believe a black hole is indicated by an absence of light. So say you have a picture of a galaxy, and theres a black spot where no light returned, thats a black hole. Its black cause naturally the co

Direction of the Acceleration of a Proton

A proton is moving in an electric field. The direction of the acceleration of the proton is a) in the direction the proton is moving. b) opposite the direction the proton is moving. c) perpendicular

Finding the mass of an object

A crane is using a force of 2500N to lift an onbject 30m high in 50seconds. What is the mass of the object? Please tell me how to figure this out!-Certainly not enough info, but if the lift is at a s

Why does the sun appear yellow to our eyes

why does the sun appear yellow to our eyes?-The sun emits electromagnetic radiation (light) from all wavelengths; x-ray, gamma, visible, ultraviolet, infrared, and radio. However, it emits all these i

HoW does this work? Read

I have a fan. When you turn it on it spins very fast. If i slow it down then i see the fan turn right then left then slows down. Another example is if you see a fast moving car go to the right >>> At

Find speed of transverse wave

A horizontal wire is under a tension of 345 N and has a mass per unit length of 6.8510-3 kg/m. A transverse wave with an amplitude of 2.65 mm and a frequency of 525 Hz is traveling on this wire. As th

Is it possible for effect to precede cause

Now, this is a practice in quantum theory. Theoretically, cause always precedes effect - You start it off, by doing Cause A. Naturally, Cause A would provide for Outcome A. My question is, can the out

Find the vector components of the electric force on q1 and the vector's magnitude and direction.

Using the same triangle, find the vector components of the electric force on q1 and the vectors magnitude and direction. (Use the charges given in the Practice It section.) A) Fx = N B) Fy = N C) mag

Why can't we fix a broken cup

Yirmiyah is right.To elaborate: 1. 2nd law of thermodynamics:the entropy of the universe is always increasing. 2.Entropy can be shown to be associated with orderliness: the less orderliness, the hig