12,762 Answered Questions for the topic physics

Physics

10/07/22

Enter. the answer in m/s
You are on a roller coaster with a vertical loop of radius 12.6 m. At the top of the loop you are inverted and you momentarily feel weightless. Find your speed at this moment.Enter your answer, in... more
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Physics

10/07/22

Find the distance of a frictionless chute when a toy come to rest.
A young girl pushes her toy hippo down a frictionless chute, starting at a height of 1.07 m above the bottom of the chute and with an initial speed of1.81 m/s. The toy animal emerges horizontally... more
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Physics

10/07/22

Physics Homework
One strategy in a snowball fight is to throw a snowball at a high angle over level ground. While your opponent is watching this first snowball, you throw a second snowball at a low angle and time... more
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Physics

10/07/22

uncertainty about the force of static friction
Hello,I was wondering whether someone might be able to help me better understand static friction. Why doesn't static friction always equal μFn? When does it make sense to assume that f = μFn? When... more
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Physics

10/07/22

How to find the direction of static frictional force - given angular acceleration? (coin on rotating platform)
Hello,I was wondering if someone could help me with this problem.Given a coin resting on a rotating aluminum ruler (10cm from the center of the ruler), I am given an angular acceleration of the... more
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Physics

10/07/22

a kitten pushes a ball of yarn rolling toward it at 0.0600 m/s with its nose, moving the ball of yarn 0.475m in the opposite direction in 2.00s. what is the acceleration of the ball of yarn
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Physics

10/07/22

Calculate the distance d she travels along the incline before landing.
A ski jumper travels down a slope and leaves the ski track moving in the horizontal direction with a speed of 29 m/s as in the figure. The landing incline below her falls off with a slope of θ =... more
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Physics

10/07/22

how long before the cheetah gets its prey
A cheetah can run at a maximum speed 103 km/h and a gazelle can run at a maximum speed of 76 km/h. If both animals are running at full speed, with the gazelle 84.1 m ahead, how long before the... more
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Physics

10/07/22

how long before the cheetah gets its prey
A cheetah can run at a maximum speed 103 km/h and a gazelle can run at a maximum speed of 76 km/h. If both animals are running at full speed, with the gazelle 84.1 m ahead, how long before the... more
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Physics Math Science

10/06/22

the question couldn't fit so it's down below
The dome of an electrostatic generator is spherical conductor of radius 13cm. It is initially charged so that the electric potential at the surface is 4.5kV. A smaller isolated sphere of radius 5.2... more
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Physics

10/06/22

How long is a projectile in the air for?
Two physics students are playing catch with a baseball. One throws the ball to the other but overshoot and the ball lands on the library roof instead. The ball left the student's hand 2.08 m above... more
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Physics

10/06/22

Landing question
Two kittens are running toward each other, one is named Chloe and the other is named Luna. Luna runs at a speed of 1.40 m/s. If Chloe jumps at an angle of 13.0° with speed 2.00 m/s, at what... more
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Physics

10/05/22

Im not sure how to answer this question
Suppose a large rock is ejected from the volcano with a speed of 27m/s and at an angle of 33 degrees above the horizontal, as shown in the figure below. The rock strikes the ground at an altitude... more
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Physics

10/05/22

Help me pleeeeeeeeeeeeese
What is the velocity of a ball rolling 23.0274 meters in 48.06 seconds?
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Physics

10/05/22

Energy Question
A 70-kg professional cyclist is climbing a mountain road at an average speed of 23.1 km/h. The road has an average slope of 3.4 degrees and is 11.3km long. If the cyclist’s power output averages at... more
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Physics

10/05/22

Physics Force Question
A baseball player throws a ball at a nearby boulder. The ball hits the boulder with a speed of 39 m/s and then bounces straight up to a height of 15 m above the boulder.Assuming that the rotational... more
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Physics

10/05/22

Im not sure how to go about answering this question
A jet plane flying from Darwin, Australia has an air speed of 260m/s in a direction 5 degrees south of west. The plane is in the jet stream which is blowing at 35m/s in a direction 20 degrees south... more
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Physics

10/05/22

Enter your answer in m/s
A truck with a crate in its bed drives around a horizontal circular turn of radius 27.4 m. The crate is held in place only by static friction, and the coefficient of static friction between the... more
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Physics

10/04/22

I need help on my homework
A rocket is launched straight up with the speed of 804 m/s. What is The Rock is displacement after 29.8 seconds.
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Physics

10/04/22

What is her final speed after this elapsed time? how much time did she save compared to continuing at her initial speed?
A cyclist sprints at the end of her road race in an attempt to clinch a victory. She has an initial speed of 9.5m/s9.5m/s and accelerates at a rate of 0.50m/s^2 for 7.00s. Include units as... more
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Physics

10/04/22

A seagull flies with an air speed of 14m/s straight into the wind. Include units as appropriate below. If under these conditions it takes the bird 20min to travel 6km, what is the speed of the wind?
A seagull flies with an air speed of 14m/s14m/s straight into the wind. Include units as appropriate below.(a) If under these conditions it takes the bird 20min20min to travel 6km6km, what is the... more
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Physics

10/04/22

physics question
A cannon is placed on the edge of a 300m high cliff as shown in the figure. The cannon is fired at angle of  = 30 with respect to the horizontal and the cannonball leaves the cannon at a speed of... more
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Physics

10/04/22

physics question
An 8.0kg block is being pulled up a rough incline by a 20 N force. The incline makes an angle of 37 with respect to the horizontal and the coefficient of kinetic friction between the block and the... more
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Physics

10/04/22

physics question
A satellite with a mass of 80kg is in a circular orbit around the Moon. The satellite is a distance of 5.0 x 105 m above the surface of the Moon. (MMOON = 7.4 x 1022 kg, RMOON = 1.7 x 106 m) a.... more
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Physics

10/04/22

Physics question
You apply a horizontal force of 12N to the right to a 3.0kg box that is sliding to the right with an initial speed of 4.0m/s on a rough horizontal surface. The coefficient of kinetic friction... more
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