12,762 Answered Questions for the topic physics

Physics

01/27/23

The graph represents the motion of an object moving in one dimension. What is the object's average acceleration between t = 0 and t = 6 s?

Follows • 1
Expert Answers •1
Physics

01/27/23

A basketball player grabbing a rebound jumps 80 cm vertically. How much total time (ascent and descent) does the player spend (a) in the top 10 cm of this jump and (b) in the bottom 10 cm?
Follows • 1
Expert Answers •1
Physics

01/27/23

This question has 3 parts A - C.
A lead ball is dropped in a lake from a diving board 6.31 m above the water. It hits the water with a certain velocity and then sinks to the bottom with the same constant velocity. It reaches the... more
Follows • 1
Expert Answers •1
Physics

01/27/23

This question has 9 parts labeled A - I.

The position of a particle moving along an x axis is given by x = 16.0t2 - 6.00t3, where x is in meters and t is in seconds. Determine (a) the position, (b) the velocity, and (c) the acceleration... more
Follows • 1
Expert Answers •1
Physics

01/27/23

In one dimension, a particle's position as a function of time is given by x(t) = (1.12 m/s) t - (6.7 m/s2) t2. What is the magnitude of the acceleration of the particle in units of m/s2?

Follows • 1
Expert Answers •1
Physics

01/27/23

Nonuniform charge density

A 37.4 cm long rod has a nonuniform charge density given by the equationλ(x)=A(1-x/b)2where A = 5.00 nC/cm and b = 26.4 cm. What is the total charge on the rod?
Follows • 2
Expert Answers •1
Physics

01/27/23

Field strength from rod

+6.40 nC of charge is uniformly distributed along the left half of a thin rod of total length L = 4.00 m, while -6.40 nC of charge is uniformly distributed along the right half of the rod. What is... more
Follows • 1
Expert Answers •1
Physics

01/26/23

How does a credit card work in terms of physics? (Magnetism) what about contactless payment such as tap?
it would really help if you explained it using an analogy or in simpler terms and then dive into using more complex terms. Or answer it anyway you can, I just need help because I’m doing a project... more
Follows • 1
Expert Answers •1
Physics Math Trigonometry

01/26/23

Vectors and 2D Motion Physics Example Problem
A flea pulls on a puck with force 7 microN at an angle of 45 degrees. Another flea pulls on the puck with force of 3 microN at an angle of -45 degrees. What's the magnitude of the net force on the... more
Follows • 1
Expert Answers •1
Physics

01/26/23

Rotational Dynamics
Ann and Bob are pushing opposite sides of a door with I=10.5 kg•m^2. Ann pushes 34.8N at 0.732m from the axis, while Bob pushes 59.6N at 0.300m, both perpendicular to the door. What is the angular... more
Follows • 1
Expert Answers •1
Physics

01/25/23

NASA rocket launch
NASA launches a rocket at t = 0 seconds. Its height, in meters above sea-level, as a function of time is given by h (t) = -4.9t? + 37t + 374. For each of the answers below, put your numerical... more
Follows • 1
Expert Answers •1
Physics

01/25/23

Static and Kinetic Friction
A couch has a mass of 138 kg, and between the couch and the floor there's a coefficient of static friction of 0.516 and a coefficient of kinetic friction of 0.264 If the lurch lasts 5.83... more
Follows • 1
Expert Answers •1
Physics

01/25/23

dose a straw have 2 holes or dose it just have 1?
I have been conflicted by this question and it seems I never get the same answer. please help someone
Follows • 1
Expert Answers •2
Physics

01/25/23

A diver jumps into a pool (on earth) from a diving board 21 meters above the water.
A diver jumps into a pool (on earth) from a diving board 21 meters above the water. If it takes 3.28 seconds for her to reach the water, what was the vertical component of her velocity, in units of... more
Follows • 1
Expert Answers •1
Physics

01/24/23

Rotational Motion Problems
A rotor in a blender speeds up from rest to 105 rad/s in 0.793 s. Through what angle does the rotor turn in that time?Unit = radremember: CCW is +, CW is -. 1 rev = 2*pi rad
Follows • 1
Expert Answers •1
Physics

01/24/23

Calculate the linear momentum for each of the following cases.
(b) A 10.0 g bullet moving with a velocity of 305 m/s to the right(c) A 69 kg sprinter running with a velocity of 5.2 m/s southwest.(d) Earth (m = 5.98 ✕ 1024 kg) moving in its orbit with a... more
Follows • 1
Expert Answers •1
Physics Calculus

01/24/23

What is the initial velocity needed for this high jumper to reach this height?
When an object on Earth is propelled upward from ground level with an initial velocity of v0 feet per second, then its height after t seconds is given by h(t) = -16t^2+v0t..A high jumper manages to... more
Follows • 1
Expert Answers •1
Physics

01/23/23

A 0.14 kg baseball moving at +20.60 m/s is slowed to a stop by a catcher who exerts a constant force of -351 N.
How long does it take this force to stop the ball?How far does the ball travel before stopping?
Follows • 1
Expert Answers •1
Physics

01/23/23

A 1.6 kg ball strikes a wall with a velocity of 9.2 m/s to the left.
The ball bounces off with a velocity of 8 m/s to the right. If the ball is in contact with the wall for 0.21 s, what is the constant force exerted on the ball by the wall?
Follows • 2
Expert Answers •1
Physics

01/23/23

Calculate the linear momentum for each of the following cases.
(a) A proton with mass 1.67 ✕ 10-27 kg moving with a velocity of 4.29 ✕ 106 m/s straight up.(b) A 10.0 g bullet moving with a velocity of 305 m/s to the right(c) A 69 kg sprinter running with a... more
Follows • 1
Expert Answers •1
Physics

01/22/23

The magnetic field at the center of a 0.500-cm-diameter loop is 2.00 mT .
What is the current in the loop?
Follows • 2
Expert Answers •1
Physics Chemistry

01/22/23

What distance does electromagnetic radiation travel in 7.50 msec?
What distance does electromagnetic radiation travel in 7.50 msec?I got 2250000m, but apparently, I'm wrong. Please help.
Follows • 2
Expert Answers •2
Physics

01/22/23

speed and velocity practice

the track of the daytona speedway is 2.5 miles long. a racer can finish a 200 lap race in 2.85 hours. how many miles does the racer travel in 200 laps
Follows • 1
Expert Answers •1
Physics

01/22/23

In biology, a vector is a disease-carrying organism, such as a mosquito. One such disease, West Nile Virus, is spread primarily by migratory birds. The figure below shows the spread of the Virus.
West Nile Virus was first detected in New York in 1999. Two years later, the virus had spread to Miami, a distance of 1,100 miles at a direction of 7.00° west of south from New York. In 2002, the... more
Follows • 1
Expert Answers •1
Physics

01/22/23

Fermi Problems Solving
Estimate the mass of food and water that a team of six astronauts would need for a standard two-year mission to Mars. (Note: the two years includes the round trip.)
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.