12,762 Answered Questions for the topic physics

Physics

10/11/22

At what speed does the dish move? (momentum: inelastic collision)
In a restaurant, one cook slides a 245-g delicious pizza down the counter from left to right at 1.63 m/s. At nearly the exact same time, another cook launches a 349-g cheeseburger along the same... more
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Physics

10/11/22

What is the speed of the ball traveling? (momentum conservation)
A 90.0 kg man jumps straight up (with no horizontal component of velocity) and catches a horizontally traveling ball. He catches the 0.430 kg ball exactly at the peak of his leap, which is ... more
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Physics

10/11/22

Need help with this question.
Two objects mass m1 = 5.00 kg and mass m2= 3.00 kg are connected by a light string that passes over a frictionless pulley, as in Figure.  Express your answer using 3 significant figures.(a) What is... more
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Physics

10/11/22

Please help me!
If you doubled the mass and then tripled the radius of a planet, by what factor would the acceleration due to gravity at its surface change?
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Physics

10/11/22

Please show work!
Calculate the force of Earth's gravity on a spacecraft 3.00 Earth radii above the Earth's surface if its mass is 1600 kg.     Radius of the Earth = 6.37 × 106 m Mass of the Earth = 5.96 ×... more
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Physics

10/11/22

Please show work !
If the coefficient of kinetic friction between a 17 kg crate and the floor is 0.29, what horizontal force is required to move the crate at a steady speed across the floor?
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Physics

10/11/22

please help! :(
Can a coefficient of friction exceed 1.0? 
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Physics

10/10/22

a small object of mass 1.0kg is hanging from an ideal spring with spring constant a at 0.1m above the equilibrium position and it’s velocity is -0.52m/s. What is the period of oscillation?
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Physics

10/10/22

Distance and Displacement

A person standing at the edge of the cliff kicks a stone over the edge at a speed of 20 m/s. The cliff is 70 m above the surface below. With what speed does it strike the ground below?
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Physics

10/09/22

If an object is in equilibrium, which of the following is necessarily true?

If an object is in equilibrium, which of the following is necessarily true?A. The object's center of mass is not moving nor is it rotating.B. The object's center of mass is not moving.C. The object... more
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Physics Math Calculus

10/09/22

Related rates calculus

A road perpendicular to a highway leads to a farmhouse located a = 1.7 km away (See figure below).An automobile travels past the farmhouse at a speed of v = 45 km/h. How fast is the distance... more
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Physics

10/09/22

Distance and Displacement

A car travels west for 45 kilometers. It then turns south for 60 kilometers. The entire trip took 2 hours. What is the magnitude and direction of the car's average velocity? What was the car's... more
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Physics

10/09/22

Center of Mass, Impulse, Momentum, and Collisions
You are driving a truck of mass 5 650 kg at 13 m/s. You accidentally hit a parked car. The car and the passengers have a total mass of 984 kg. (a) What is the speed of the car and the truck after... more
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10/09/22

what newton's law is periodic motion and oscillatory motion?
what newton's law is periodic motion and oscillatory motion?
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Physics

10/09/22

Solve the following problems. Show step by step solutions
3. If a floor area of a classroom is 5000 square inches,a. how wide is the classroom in square meters?b. How many square tiles with a side length of 100 cm can fit in its room?
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Physics

10/09/22

Solve the following problems. Show step by step solutions
2. An airplane travels from Aparri, Cagayan straight to Jolo, Sulu. The line has a lenght of1,361 kilometers. How far apart are there places in miles?
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10/08/22

How can I learn the two special trig triangles without memorizing?
How can I learn the two special trig triangles without memorizing?
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Physics

10/08/22

Determine the time it takes the rock to follow this path.  What is the speed and angle below the positive horizontal which the rock impacts the side of the volcano?
Kilauea in Hawaii is the world's most continuously active volcano. Very active volcanoes characterisitcally eject red-hot rocks and lava rather than smoke and ash. Suppose a large rock is ejected... more
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Physics

10/08/22

Center of Mass, Impulse, Momentum, and Collisions
You are playing airsoft with your friends. You are carrying a 3.0 kg airsoft that fires a 0.20 g pellet with a velocity of 95 m/s. (a) What is the recoil velocity of the airsoft gun? (b) If you... more
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Physics

10/08/22

Center of Mass, Impulse, Momentum, and Collisions
You are driving a truck of mass 5 650 kg at 13 m/s. You accidentally hit a parked car. The car and the passengers have a total mass of 984 kg. (a) What is the speed of the car and the truck after... more
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Physics

10/08/22

Solve the following problems. Show step by step solutions.
Convert the following radians measures to degrees:a. 20b. 40c. 90d. πe. 2π/3f. π/5
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Physics

10/08/22

Solve the following problems. Show step by step solutions.
Convert the following measures of angles in degrees to radian?a. 450b. 900c. 2000d. 300e. 550f. 800
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Physics

10/08/22

Solve the following problems. Show step by step solutions.
4. The Angat Dam in Bulacan Province can safely hold a maximum volume of water equal to 8.5 x 10⁸ cubic meters. Suppose you are the dam administrator if it currently holds 6.3 x 10⁶ liters of... more
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Physics

10/08/22

Solve the following problems. Show step by step solutions.
1. How many hours are there in 3.3 months?
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Physics

10/08/22

What is the ground speed and heading of the jet measured from the west direction?
A jet plane flying from Darwin, Australia has an air speed of 270m/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 25 degrees south... more
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