373 Answered Questions for the topic physics C

Physics C Math Science Physics

12/15/19

Physics Force Problem (Please help!)
A boulder weighing 2.0x10^4 N is resting on a hillside with a slope of 37 degreesa) what force tends to cause the boulder to slide down the hill?b) If there is no friction on the surface, what is... more
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12/09/19

Physics, forces-spring problem
A block that weighs 12N is hanging from a spring scale that you are holding. How could you move the apparatus to produce a scale reading of less than 12NA) move the object downward and stop... more
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12/09/19

Physics, work problem
A mover is pushing a 20-kg box up a 30-degree ramp from the ground into a moving truck.The ramp is 2.1m long. He pushes it without rollers where the coefficient of kinetic friction is 0.3.a) what... more
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12/08/19

Physics, work problem
A mover is pushing a 20-kg box up a 30-degree ramp from the ground into a moving truck. He pushes with a constant velocity up the 2.1m ramp. He pushes it without rollers where the coefficient of... more
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12/08/19

Physics, Energy Problems (confused!)
1) a 2000 kg rollercoaster starts from a height of 55 m and an initrial velocity of 8 m/s. When it reaches the bottom of the hill (height of zero), what is its velocity?2) For the rollercoaster... more
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Physics C Math Science Physics

12/04/19

Physics, energy problems
1) a 2000 kg rollercoaster starts from a height of 55 m and an initrial velocity of 8 m/s. When it reaches the bottom of the hill (height of zero), what is its velocity?2) For the rollercoaster... more
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Physics C Physics Physics B

11/23/19

dielectric of capacitors
a dielectric with the dielectric constant k=4 is inserted into a parallel plate capacitor, filling 1/3 of the volume. if the capacitance of the capacitor without the dielectric is c whats is the... more
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Physics C Math Science Physics

11/11/19

Fnet=ma Problems
1) a 500 kg car is travelling at 15 m/s and experiences a forward engine force of 2000N for 3 seconds. The combined frictional forces acting on the car are 600 N. What is the car's acceleration?2)... more
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Physics C Math Science Physics

11/10/19

Fnet=Fma problems
1) a 500 kg car is travelling at 15 m/s and experiences a forward engine force of 2000N for 3 seconds. The combined frictional forces acting on the car are 600 N. What is the car's acceleration?2)... more
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Physics C

11/05/19

Torque required on boat motor to reach velocity
The resistance against a boat is proportional to the velocity. It needs 22 hp to keep the boat moving at 34 km/hr. The boat's engine turns at 2.3 rev/min when the boat is moving at 48 km/hr. What... more
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10/25/19

Projectile Motion
(Ignore air resistance) A man is riding in the back of a truck (facing forward) that is driving forward at a constant velocity of 30 mph. If he throws a ball straight upward so that it reachers a... more
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10/24/19

Projectile Motion

1) A rifle is shot horizontally at a speed of 200m/s above flat ground. Compared to a bullet that is dropped at the same instant, the bullet that is shot will:a) take a longer time to reach the... more
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10/24/19

Pertaining to projectile motion, will an object thrown at a specific initial angle possess the same time in the air, range, and max height, as a different object that possesses the same initial angle?
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10/24/19

A cannon is situated 14m high above the ground and shoots a projectile at 20m/s. What is the location of the projectile?
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Physics C Math Physics Physics B

10/20/19

a 9.50kg hanging object.. PHYSICS HELP

A 9.50-kg hanging object is connected by a light, inextensible cord over a light, frictionless pulley to a 5.00-kg block that is sliding on a flat table. Taking the coefficient of kinetic friction... more
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10/18/19

Atoy rocket.. PHYSICS HELP
A toy rocket engine is securely fastened to a large puck that can glide with negligible friction over a horizontal surface, taken as the xy plane. The 3.00-kg puck has a velocity of 1.40î m/s at... more
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Physics C Math Physics Sat Math

10/07/19

PHYSICS - A foreign automobile manufacturer claims that its sports car will accelerate from rest to a speed

A foreign automobile manufacturer claims that its sports car will accelerate from rest to a speed of 45.5 m/s in 7.35 s.(a)Determine the magnitude of the average acceleration of the car (in... more
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Physics C Math Math Physics

10/07/19

PHYSICS HELP - A ball is thrown upward from the ground with
A ball is thrown upward from the ground with an initial speed of 23.6 m/s; at the same instant, another ball is dropped from a building 18 m high. After how long will the balls be at the same... more
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Physics C Math Physics Sat Math

10/07/19

PHYSICS HELP - A particle moves along the x axis..
A particle moves along the x axis according to the equation x = 2.08 + 3.01t − 1.00t2, where x is in meters and t is in seconds.(a) Find the position of the particle at t = 3.40 s.(b) Find its... more
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Physics C

09/20/19

A projectile is thrown with an initial speed of 12 m/sec horizontally from the top of a building 64 meters above ground level.
a)    Determine the time taken by the projectile to hit the ground.b)    How far does the object land from the base of the building?c)    What is the vertical velocity component of the... more
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Physics C Physics Physics B

09/07/19

Metals electric charge
When a metal plate is given a positive charge, which of the following is taking place? a) Protons (positive charges) are transferred to the plate from another object. b) Electrons (negative... more
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Physics C Math Science Physics

05/10/19

A 1,000-kg vehicle traveling 4 m/s eastward collided with another vehicle, at which point it moved 1 m/s westward.

A 1,000-kg vehicle traveling 4 m/s eastward collided with another vehicle, at which point it moved 1 m/s westward. What was the vehicle's change in momentum? A. 1,000 kg • m/s B. 3,000 kg •... more
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05/10/19

Which of the following is the best example of Newton's second law?
Which of the following is the best example of Newton's second law?A. A rolling ball comes to a stop because the forces of friction and gravity are acting upon it.B. The acceleration of a skydiver... more
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Physics C Physics Physics B

04/08/19

Physics car power question
A car is moving at 24.5 m/s and is being pushed by a force of 325 Newtons. How much power is being delivered to the car?
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Physics C Physics Physics B

04/08/19

Physics bullet question
A bullet has a mass of 20 grams and is traveling at 275 m/s. It passes completely through a wooden block and emerges with a velocity of 130 m/s. If the block is   1.2 kg in mass, what is the... more
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