Physics

What arguments did he use to prove that he was right?did be used experiments, logic, finding of other scientists or other approaches
1 Answer
pleases can someone help me with this question
1 Answer
on a day when there is no wind, you are moving toward a stationary source of sound waves. compared to what you would hear if you were not moving, the sound that you hear has
1 Answer
how far will a rock travel if it is thrown upward at an angle of 35.00 with respect to the horizontal and with a speed of 21.3 m/s? what is the maximum range that can be achieved with the same initial speed?
1 Answer
how to know the minimum force a third vector should exert to bring the two other vectors to equilibrium
1 Answer
a compound machine used to raise heavy boxes consists of a ramp and a pulley. the efficiency of pulling a 100 kg box up the ramp is 50%. if the efficiency of the pulley is 90%, what is the overall efficiency of the compound machine?
1 Answer
the paper dielectric in a paper-and-foil capacitor is 8.10*10^-2 mm thick. it's dielectric constant is 2.10, and it's dielectric strength is 50.0 MV/m. assume that the geometry is that of a parallel-plate capacitor, with the metal foil serving as the plates.Part A: What area of each plate is required for for a 0.300 uF capacitor? In m^2Part B: If the electric field in the paper is not to exceed one-half the dielectric strength, what is the maximum potential difference that can be applied across the compactor? In V
1 Answer
a spring has a mass of 2kg attached to it, and the spring constant is 8n /m. the mass is set in motion from the rest position with an initial velocity of 2m/s. assuming that there is no damping, find the subsequent motion of the mass. (you do not need to use the phase shift)
1 Answer
a large piece of debris that only partially burns up in the atmosphere, leaving a fragment to hit the surface, is called a
1 Answer
when 115 v is applied across a wire that is 10 m long and has a 0.30 mm radius, the magnitude of the current density is 1.4 108 a/m2 . find the resistivity of the wire.
1 Answer
how might we experience the universe differently if the speed of light were much slower? much faster? what if the speed of light were not constant? construct the correct description.
1 Answer
calculate the original charge on the capacitor plates. express your answer with the appropriate units.
1 Answer
Two identical cars (m-1350 kg) are traveling at the same speed of 35.7 m/s. They are moving in the directions shown in the drawingWhat is the magnitude of the total momentum of the two cars?Car 1 - 60Car 2 - 30
1 Answer
Find the change in temperature of each sample after the hot water was added. Fill in the table with the data you collected in parts C and D. To find the change in a samples temperature, subtract the starting temperature from the ending temperature.Sample Starting Temperature Ending Temperature Change in Temperature50 g sand 50 g water 100 g water
1 Answer
a particle passes through the point at time , moving with constant velocity . find the position vector of the particle at an arbitrary time .
1 Answer
Two stars, Bucky and Badger, form in the same giant molecular cloud. Bucky has 5 solar mass and Badger has 1 solar mass. Which of the followings is correct?A) The main-sequence life of Bucky is 5 times longer B) Bucky has a longer time to become a protostar C) We can detect Badger first when it becomes a pre-main- sequence star D) They have the same heavy elements
2 Answers
a flywheel has a radius of 0.40 m. what is the speed of a point on the edge of the flywheel if it experiences a centripetal acceleration of 15 m/s2
1 Answer
determine the intensity of electromagnetic waves from the sun just outside the atmospheres of the earth.
1 Answer
a rifle is fired with angle of elevation . what is the muzzle speed if the maximum height of the bullet is ft?
1 Answer
calculate the moment of inertia of a baseball bat about its proximal end if its mass is 2.1kg and has a radius of gyration of 58% and a length of 0.869m
1 Answer
an optical telescope at the yerkes observatory (williams bay, wisconsin) has a lens that is approxi- mately 1 meter in diameter. which type of telescope is this
1 Answer
a typical television remote control emits radiation with a wavelength of 938 nm. what is the frequency (in 1/s) of this radiation?
1 Answer
I need help please please please please
1 Answer
as the normal contact force increases, what happens to the friction force? it increases. it decreases. it remains constant. it disappears. this depends on the weight of the object.
1 Answer