Physics

Newton's laws in three dimensional form

A 1200 kg car is being towed up an 18 degree incline by means of a rope attached to the rear of a truck.The rope makes an angle of 27 degrees with the incline.What is the greatest distance that the ca

What's the difference between m/s and m/s^2

I find it confusing :/-m/s rate of change of dispalcement per sec. ie velocity m/s^2 is (m/s)/s ie rate of change of velocity per sec. ie acceleration-m/s means the change of distance with time m/s^2

How much force is needed

From point (3000,4000,0) to the next destination is the point (-2000, 16000,0) a force of 2N is applied in the direction of pi radians. An appropriate force is applied in the direction of pi/2 radians

Is Albert Einstein or Stephen Hawking considerd more brilliant

Albert Einstein has had more impact on the entire world than Hawking to this point.-Einstein’s Miracle Year 1905 No one before or since has equaled Einstein’s 1905 Miracle Year Match this: In 1905

[PHYSICS QUESTION] A girl rides a merry-go-round that rotates at a constant rate.

A girl rides a merry-go-round that rotates at a constant rate. She travels one fourth of a revolution, a distance of 20 m along the circumference of the circle, in 2.5 s. The magnitude of her accelera

Help in Derived Quantities in Physics

Can you please give me the symbol of the Derived Quantities I am listing and the Units and the symbols of their units for them please. 10 Points to all those that help me accurately. Moment of a Forc

A moving walkway in an airport is 60 m long and moves at a speed of 0.30 m/s.

A passenger, after traveling 35 m while standing on the walkway, starts to walk at a speed of 0.60 m/s relative to the surface of the walkway.How long does she take to travel the total distance of the

Faulty Physics Problem or Faulty Reasoning

A world class sprinter accelerates from rest to his maximum speed in 4.00s. He then maintains that speed for the remainder of a 100.m race. He is able to finish the race in 9.10s. a) What is the avera

What is density in science

how much actual matter is in a given volume. consider this: fill a balloon with air. you can squeeze the balloon by squishing the air particles closer together. you increase the density (pack it clo

Why is the expansion of ice important to know

Im doing a scientific report for school and this question has to be answered in the intro. my experiment is where I measure how much the ice has expanded with tap water, sparkling water and boiling wa

What are gamma rays made out of

gamma rays are not a form of matter; they are a form of electromagnetic radiation of very high frequency and energy; like all electromagneitc radiation, gamma rays come in the form of photons...discre

Is it true that the force of a karate chop comes from the pull of the chop

No, thats not true. Try karate chopping yourself on the forearm as hard as you can, without pulling at all. Just swing your arm down and push. As you can feel, there is plenty of force. The pull is

A baseball is hit nearly straight up into the air with a speed of 42 m/s.

(a) How high does it go? in meters (b) How long is it in the air? in seconds please and thank you!-v² = 2gh 42² = 2gh h = 90 m t = √(2h/g) = 4.29 s-I dont know

Why would sparkling water expand more than tap or boiled water

im doing a school experiment and i thought that the boiled water would expand the most-Sparkling water contains CO2, and the distance between gas particles is greater than the distance between water m

Help with this please!

How can I get the displacement of this problem: An ant moves 2 cm N then 4 cm S help me!-Hey there, We must first know that displacement is the distance from the starting point to the end point S