12,762 Answered Questions for the topic physics

Physics

09/28/22

What are theÂ đ‘„x and 𝑩y 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∘ξ=45∘ above the horizontal. It impacts a target above the ground 3s3s later. What are... more
Follows • 1
Expert Answers •1
Physics

09/28/22

An object is dropped from a height of 85.0m85.0m above ground level. Treat the effect of air resistance to be negligible and the upwards direction to be positive.
 Include units as appropriate below.a) Determine the distance travelled after 0.50s0.50s.(b) Determine the velocity at which the object hits the ground.(c) Determine the distance travelled in the... more
Follows • 1
Expert Answers •1

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... more
Follows • 2
Expert Answers •1
Physics

09/28/22

A crewman stands on a bathroom scale. In calm waters, the scale reads 183 lb . During storm, crewmen find a max reading of 225 lb and a minimum of 140 lb. Max acceleration upward/downward?
Follows • 1
Expert Answers •1
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
Follows • 1
Expert Answers •1
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... more
Follows • 0
Expert Answers •1

09/28/22

A car enters a highway at a speed of 5.8 meters/second and accelerates uniformly to 65 meters in 7.2 seconds. What is the speed of the car after this?
Follows • 1
Expert Answers •1

09/27/22

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.
Follows • 1
Expert Answers •1
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... more
Follows • 1
Expert Answers •2
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... more
Follows • 1
Expert Answers •1
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?
Follows • 1
Expert Answers •1
Physics Science Chemistry

09/27/22

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,... more
Follows • 2
Expert Answers •1
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... more
Follows • 1
Expert Answers •1
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... more
Follows • 1
Expert Answers •1
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... more
Follows • 2
Expert Answers •1
Physics

09/27/22

Dragsters can achieve average accelerations of 25.0m/s2. Suppose such a dragster accelerates from rest at this rate for 5.36s. How far does the dragster travel in this time?
Follows • 2
Expert Answers •1
Physics

09/26/22

Kinematic equations #3
A skydiving raccoon jumps off a cliff and falls for 8 seconds before he opens his parachute. Whatwas his speed just before he opened the parachute?
Follows • 1
Expert Answers •1
Physics

09/26/22

Can anyone help me with this question?
1) A vector A has a magnitude of 9 and is directed along an angle [theta= 30 degrees].  w.r.t the x-axis. its x component is............... , and y component is................. . Round up to two... more
Follows • 1
Expert Answers •1
Physics

09/25/22

Please help me with this question!!
If vector C= vector a+ vector b and vector A= xi+6j, vector B=2i-3j, vector C=4j+yj, values of x and y? (i hat and j hat)
Follows • 1
Expert Answers •1
Physics

09/25/22

Time until an object reaches the bottom of a lake.
On a beautiful day you decide to go fishing with your younger brother Ben. Ben has not been fishing before so he doesn't know how to properly cast out his line. He puts the lure 29.7 cm above the... more
Follows • 1
Expert Answers •1
Physics

09/25/22

What is the brain's acceleration, and the "g-force" (the unitless number of 𝑔g's of acceleration, where 𝑔g is given on the formula sheet) of the woodpecker's brain?
This question is a continuation from the previous question.A woodpecker's brain is specially protected from large decelerations by tendon-like attachments inside the skull. While pecking on a tree,... more
Follows • 1
Expert Answers •1
Physics

09/25/22

What is the stopping time of the skull?
A woodpecker's brain is specially protected from large decelerations by tendon-like attachments inside the skull. While pecking on a tree, the woodpecker's skull comes to a stop from an initial... more
Follows • 1
Expert Answers •1
Physics

09/24/22

max height of object above the surface
SpaceX plans to transport humans to Mars, but experienced a few rocket failures while on initial tests. So suppose the rocket to Mars (without people on board - another test flight) liftoffs from... more
Follows • 1
Expert Answers •1
Physics

09/24/22

Find where one object surpasses another.
You are standing on top of a 219 m tall building. A drone operated by your friend is headed straight down, at a speed of 28.0 m/s. Just as the drone passes you, you release a tennis ball off the... more
Follows • 3
Expert Answers •1

09/24/22

Help needed with physics problem
A 2.5-cm-diameter parallel-plate capacitor has a 2.1 mm spacing. The electric field strength inside the capacitor is 1.0×10^5 V/m .How much charge is on each plate?My answers were: 6.0*10^-8... more
Follows • 1
Expert Answers •1

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.