# physics( i have no idea how to go about gettign th

80,325 results, page 85-
## Physics

) What is the minimum uncertainty in the velocity of an electron that is known to be somewhere between 0.050 nm and 0.10 nm from a proton? -
## physics

a car is moving at 40km per hour what is the velocity in meters per second? -
## Physics

In the photoelectric effect, what determines the number of ejected electrons? -
## physics

Find the number of atoms in a gold ring of mass 6.43 g. -
## physics

Find the mass in grams of a carbon dioxide molecule. -
## AP physics

A car travels 35 km west and 75 km north. what distance did it travel? -
## Physics

How much energy is released when 250 kg of anthracite coal burns -
## physics

why is the color of the sky orange during sunrise and sunset? --pls help me on here-- thanks :) -
## physics

The distance between two planets is 1.6 x 10^6 m. How much time would the light signal take to go from one planet to the other? -
## physics

A fully loaded 737 aircraft takes off at 250 {\rm km/h}. -
## Physics

An electron and a proton are traveling at the same speed. Which one has the longer wavelength? -
## physics

how can you say that thickness of a material varies as it is a constant value. discuss with in 50 words. -
## physics

How much charge flows through a 12 V battery when a 2 ìC capacitor is connected across its terminal? -
## physics

show that none of the principal moments of inertia can exceed the sum of the other two Please help me thank you -
## physics

How long does it take a 25 kW steam engine to do 5.6 × 10^7J of work? Answer in units of s -
## physics

What is the rotational speed of the hour hand on a clock? -----rev/s -
## physics

A stone is dropped from a height of 4.5m.What will be the distance travelled by it during the last second of its fall? -
## physics

A nail is dropped from a height of 400m. How long does it take to land? -
## physics

state pascal's principle of transmission of pressure in liquids -
## physics

A car accelerates from rest at 7.9 m/s2. How much time does it need to attain a speed of 5 m/s? -
## physics

What is the rotational speed of the hour hand on a clock? -----rev/s -
## physics

A 5kg mass was lifted 365cm, how much work was done against gravity? -
## physics

explain why we sweat when it is hot? How does it help us? In terms of heat and temperature what happens -
## physics

You drive a car 7 h at 42 km/h, then 7 h at 65 km/h. what is your average velocity? answer in units of km/h -
## physics (Science)

If a bee flew 27 centimeters in 10 seconds what would its speed be? -
## physics

A mass accelerate uniformly when the resultant force acting on it is what? -
## Physics

2 factors that increase static friction? Could it be weight or the ground? -
## Physics

A car accelerates from rest to 90km/h in 10 seconds.What is its acceleration in m/s2? -
## physics

Find the resultant of two vectors 7N and 8N inclined at an angle of 65 degree to each other -
## PHYSICS

Determine the equivalent capacitance between A and B for the group of capacitors in the drawing. Let C1 = 12 µF and C2 = 4.0 µF. -
## physics

calculate the distance co verb for an object of mass20kg and force600n -
## physics

all electric charges are multiples of the charge on an electron, or atom? -
## physics

Two positive charges of 12 µC and 8 µC respectively are 10 cm apart. Find the work done in bringing them 4 cm closer, so that, they are 6 cm apart.. -
## physics

Two charged spheres are 8.00 apart. They are moved, and the force on each of them is found to have been tripled -
## physics

what is the kinetic energy of a bear with a mass of 65 Kg and running at a speed of 20 m/s ? -
## physics

What force is required to accelerate a 90kg bike to 20 m/s in 15 sec? I need to know HOW to do it! -
## physics

With acceleration of 2500 m/s2, how long will it take to rreach speed of light -
## physics

A 84.0 kg person is being pulled away from a burning building as shown in the figure below. -
## physics

Essay on how accleration due to gravity is used to benefit mankind -
## physics

does the flame of gas stove emit light?explain -
## physics

What forces are acting on a puck that is on an air hockey table? -
## Physics

Calculate the de Broglie wavelength of a proton moving at 5.50x10^5 m/s. -
## physics

How much time is required for sound to travel 1.4 km through air if the temperature is 30.0 c -
## physics

With acceleration of 2500 m/s2, how long will it take to rreach speed of light -
## physics

What force is required to accelerate a 90kg bike to 20 m/s in 15 sec? I need to know HOW to do it! -
## physics

need help can someone please tell me Electricity is often converted into other forms of energy. List 3 examples. -
## physics

A force of 1.3N results in the movement of an object 3.1m northeast.How much work is done -
## Physics

What will be the final temperature if 1.9 x 10^2 kJ of heat is added to 0.5 kg of ice at 0 deg. C? -
## Physics

What are some common examples of light refraction, excluding rainbows? -
## Physics 102

What would be the path of the Moon if somehow all gravitational forces on it vanished to zero? -
## Physics

What is the frequency of an electromagnetic wave if it has a wavelength of 1.4 km? The speed of light is 3 × 10 8 m -
## physics

assign units and determine net forces in a situation. -
## physics

What is the kinetic energy of a 62kg cyclist if she is moving on her bicycle at 8.2 m/s? -
## physics

7/8 part of a substance decays in 45 days what is its half life -
## Physics

If the speed of the wave is 330 per sec calculate the wavelength -
## physics

Calculate the speed of a 10,000 kg airliner with a kinetic energy of 3.1 x 10^9 J. -
## physics

what 2 factors determine the size of the force of gravity? & what is the relationship between them? -
## Physics

If a force of 15kg. wt acts on a mass of 14 kg, what will be its velocity after 8 seconds? -
## Physics

What is the latent heat of fusion of ice to water? Help pls!!!!! -
## physics

What voltage is required to run a 45 W light bulb if the current is 0.5 A? -
## physics

claculate the force of gravity between two identical balls 8kg each, if they are 5m apart? -
## Physics

Explanation of twin paradox in regards to special relativity theory. -
## physics

the number of degrees of freedom for a rigid diatomic molecule is ------------ -
## Physics

Two objects are moving about so that their total momentum is zero. What can be said about their kinetic energy? -
## Physics

How much energy is deposited in the body of a 78 kg adult exposed to a 2.9 Gy dose? Please and thank you. -
## Physics

briefly explain why can it be dangerous to touch a charged capacitor? -
## physics

What is the minimum speed required to simulate artificial gravity? -
## Physics

calculate the force between two identical charges of 1.0 x 10 exp -9 C separated by 1.0 Cm -
## Physics

How far apart are a proton and electron if they experience an electric force of 5.10N? -
## physics

Calculate the speed of a 10,000 kg airliner with a kinetic energy of 3.1 x 10^9 J. -
## physics

What is its velocity when it returns to the level from which it started? Answer in units of m/s -
## physics

why would you wear a white t shirt opposed to a blak one in winter -
## Physics HW Help, Please

What is the energy required to accelerate a 1600 kg car from rest to 33 m/s? -
## physics

what is the pressure on the bottom of an aquarium 0.3 m deep filled with water -
## physics

what is the frequency of a citizen's band (CB) radio which has a wavelength of 11.5 meters ? -
## physics

claculate the force of gravity between two identical balls 8kg each, if they are 5m apart? -
## physics

if 8.96dm of CO is produced at STP -how many moles of CaCO3 have reacted -
## physics

Determine the tangential speed of a point .4 m from the center of the wheel? -
## physics 12

a 1kg satellite has an orbital period of 4 hours. what's the altitude? -
## Intro Physics

An EM wave has a wavelength of 620 nm. What is its frequency? How would we classify it? -
## Physics

A mass accelerates uniformly when the resultant force acting on it is......? -
## Physics

the energy of a ball rolling up an inclined place plane is? -
## physics

What is the repulsive force between two pith balls that are 12.0 cm apart and have equal charges of -39.0 nC? -
## physics

At a distance of 2.0 m. from a +8.0 x 10^-6 C charge, the magnitude and direction of the electric field will be? -
## physics

why one cannot find the north pole of the earth using only a simple compass -
## physics

How much heat is added to 10.5 g of ice at -20.0°C to convert it to steam at 123.5°C? -
## physics

Does the kinetic energy of a car change more when it speeds up from 10 to 15 m/s or from 15 to 20 m/s? Explain. -
## physics

describe how the values of resisitivity determine the uses of material in industry ??? -
## Physics

What is the speed of a wave whose frequency is 9.00Hz and wavelength is 0.654m? -
## gr.10 physics

could someone please help me with this? Rearrange and simplify for r when A=3.14r^2 by the way, 3.14 is supposed to be pi, but i don't know how to write it... -
## physics

The magnitude of a vector is always : - a positive number - greater than 1 - an integer - none of the above. -
## physics

A 31-m/s velocity vector that makes an angle of 44° counterclockwise from the -x direction. x: y: -
## physics

How do you know what element is chemically active on the periodic table? PLS HELP -
## Physics

Calculate the resultant force of 5N and 5N ac ting at an angle 90 degree -
## physics - help !!!!!!!!

The magnitude of a vector is always : - a positive number - greater than 1 - an integer - none of the above. Thank you -
## physics

Does the kinetic energy of a car change more when it speeds up from 10 to 15 m/s or from 15 to 20 m/s? Explain. -
## Physics

A car weighing 9800 N moves around a circular track of 70 m in 60 s. (a) -
## physics

A skier slides down a slope to the left at a constant speed. -
## Physics

how does the MA and the IMA of the inclined plane vary with the inclination angle? -
## Physics

17. Explain how water can transfer energy by conduction and by convection.