12,726 Answered Questions for the topic physics
Physics
10/02/22
Projectile motion
Suppose that a world-class long jumper jumped on the moon with the same initial velocity as that which would produce a world record breaking distance of 9.35 m on earth. What would be the range of...
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Physics
10/02/22
What is the height of the cliff
A ballis launched at a bottom of a cliff with initial speed v0=40m/s directed at an angle of theta= 42° above the horizontal towards a cliff with height x. The ball hits the cliff 4.50s after the...
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Physics
10/02/22
Please help me with this question!!
A car accelerates with a constant acceleration for 8 seconds before reaching top speed. The car completes a trip of 0.9 kilometer in a total travel time of 47 seconds (including the time it takes...
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Physics
10/01/22
The mass of the larger block
In the diagram below, a worker drags two blocks on a frictionless surface. The work pulls on the first cord, which is connected to the smaller block and at an angle of q = 32.0O above the...
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CHEMISTRY Question
In a space shuttle, the CO2 that the crew exhales is removed from the air by a reaction within canisters of lithium hydroxide. Let's assume that one astronaut exhales about 825. L of CO2 daily....
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Physics
09/30/22
why does the ball with less force applied to it go slower than the one with more force?
Physics
09/29/22
AP Physics Question
It takes .21s for a dropped object to pass a window that is 1.35m tall. From what height above the top of the window was the object released?
Physics
09/29/22
Physics highshool level
There are three equally sized positively charged metal spheres. Sphere A is 2.00 m left of sphere B, and sphere C is 1.5 m right of sphere B. sphere A has quadruple the charge of Sphere B, and...
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Physics
09/29/22
physics highschool level question
If an Alpha particle experience an electric force of 0.31 N at a specific location in space, what electric force would a proton experience at the same location?
Physics
09/28/22
What is the unknown mass and weight
using the initial valocity(0.82), final velocity (0.85) , distance (0.8m) and mass of 26.94 grams, find net force
Physics
09/28/22
A landowner has a triangular piece of land that she wants to fence. Starting at the west-most corner, the first side to be A=70m long and the next side to be 𝐵=95m long. What is her result?
A new landowner has a triangular piece of land that she wishes to fence. Starting at the west-most corner she measures the first side to be 𝐴=70mA=70m long and the next side to be 𝐵=95mB=95m long...
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Physics
09/28/22
What are the 𝑥x and 𝑦y distances from where the projectile was launched to where it impacts the target?
A projectile is launched at ground level with an initial speed of 𝑣𝑜=65m/svo=65m/s at an angle of 𝜃=45∘θ=45∘ above the horizontal. It impacts a target above the ground 3s3s later. What are...
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09/28/22
Help me please i dont even know where to start
Activity 2Record time at various positions below in Activity 2, Table 1 per the details in Activity 2 laboratory exercise instructions. Graph the points from Activity 2 Table 1 and draw a line of...
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Physics
09/28/22
A mass of 27g of liquid is put into a S.G bottle at 18°C. When heated to a temperature 5g of the liquid was expelled.If the apparent expansivity of the liquid is 0.000997K/^1.Calculate the temperature
Temperature
Physics
09/28/22
Physics problem (momentum)
A 0.58 kg softball has a velocity of 13 m/s at an angle of 29° below the horizontal just before making contact with the bat. What is the magnitude of the change in momentum of the ball while it is...
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The shuttle lands on the runway at a speed of 105 meters/second. It then decelerates by parachute and comes to a complete stop in 60 seconds.
Assuming constant acceleration, calculate the distance required for the shuttle to come to a complete stop.
Physics
09/27/22
On dry concrete, a car can decelerate at 6.0m/s2, whereas on wet concrete it can decelerate at only 5.0m/s2.
(a) Find the distance necessary to stop a car moving at 24.0m/s24.0m/s on dry concrete.=(b) Find the distance necessary to stop a car moving at 24.0m/s24.0m/s on wet concrete.=(c) Repeat both...
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Physics
09/27/22
What is the velocity of the rock when it is 5.10m5.10m below the starting point (remember that velocity is a vector)?
A person throws a rock straight downwards off a cliff with an initial speed of 13.0m/s13.0m/s. What is the velocity of the rock when it is 5.10m5.10m below the starting point (remember that...
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Physics
09/27/22
The Box.........
You lift a 64.00-kg box from the floor onto a shelf 1.50m above the floor.If you lift the box with a constant speed, what is the magnitude of the force you exert on the box? Is it upward or downward?
Chemistry Question
Ethanol, C2H5OH, is considered clean fuel because it burns in oxygen to produce carbon dioxide and water with few trace pollutants. If 500.0 g of H2O are produced during the combustion of ethanol,...
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Physics
09/27/22
What is the velocity of the rock when it is 5.10m5.10m below the starting point (remember that velocity is a vector)?
A person throws a rock straight downwards off a cliff with an initial speed of 13.0m/s13.0m/s. What is the velocity of the rock when it is 5.10m5.10m below the starting point (remember that...
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Physics
09/27/22
how long does it take to travel the 200m200m up the ramp? Treat the direction of motion as positive.
Suppose a car merges into freeway traffic on a ramp 200m200m in length. If its initial velocity is +10.0m/s+10.0m/s and it accelerates at +2.50m/s2+2.50m/s2, how long does it take to travel...
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