Physics

All new and solved questions in Physics category

4 answers

Take a solid cylinder and a solid sphere both with same radii and mass. if you let them roll down an incline from the same position,

take a solid cylinder and a solid sphere both with same radii and mass. if you let them roll down an incline from the same position, which one will reach the bottom last?...
4 answers

Which statement accurately describes the atmospheres of the inner planets?

Which statement accurately describes the atmospheres of the inner planets?...
3 answers

A tenis ball is thrown upwards from the edge of a cliff with a speed of 10m/s

A tenis ball is thrown upwards from the edge of a cliff with a speed of 10m/s...
4 answers

Evaluate the scenarios below, each of which demonstrate the transfer of kinetic energy.Scenario 1: ThermometerScenario 2: Guitar

Evaluate the scenarios below, each of which demonstrate the transfer of kinetic energy. Scenario 1: Thermometer Scenario 2: Guitar Strings The red liquid in the thermometer moves up and down the tube. The guitar strings vibrate once the first was strummed Select one scenario and use it to support ...
6 answers

In the above diagram, the block is at static equilibrium on the ground. What is the value of the force exerted by the ground on the

In the above diagram, the block is at static equilibrium on the ground. What is the value of the force exerted by the ground on the block if the force due to gravity is 12 newtons? A. 20 newtons B. 12 newtons C. -12 newtons D. -20 newtons E. 0 newtons [tex]In the above diagram, the b...
3 answers

A rocket ship in space is at rest relative to a rock floating in deep space. Therocket ship accelerates away from the rock at 3

A rocket ship in space is at rest relative to a rock floating in deep space. The rocket ship accelerates away from the rock at 3 m/s2, while it accelerates it goes through a displacement of 108 m directly away from the rock. For what amount of time did it accelerate? Hint: If a variable has the nu...
4 answers

If the value of the electric field in an electromagnetic wave were doubled, what would happen to the total energy density of the wave?

if the value of the electric field in an electromagnetic wave were doubled, what would happen to the total energy density of the wave?...
10 answers

Which statement describes the size of the inner planets?

Which statement describes the size of the inner planets?...
4 answers

Most often, a blackbody curve will have its maximum in what region of the electromagnetic spectrum?

Most often, a blackbody curve will have its maximum in what region of the electromagnetic spectrum?...
4 answers

A fixed 10.8 cm diameter loop of wire is laying in the plane of this paper. A magnetic field of 0.48 T is pointing up, out of the

A fixed 10.8 cm diameter loop of wire is laying in the plane of this paper. A magnetic field of 0.48 T is pointing up, out of the paper. The field is then changed to 0.25 T pointing down into the paper (so the direction of the field is reversed). The time taken to change the magnetic field is 0.16 s...
4 answers

A horizontal spring with stiffness 0.5 N/m has a relaxed length of 17 cm (0.17 m). A mass of 18 grams (0.018 kg) is attached and you

A horizontal spring with stiffness 0.5 N/m has a relaxed length of 17 cm (0.17 m). A mass of 18 grams (0.018 kg) is attached and you stretch the spring to a total length of 25 cm (0.25 m). The mass is then released from rest. What is the speed of the mass at the moment when the spring returns to its...
4 answers

A car starts at zero and gets to 50 km/hour in 10 minutes. What is the acceleration?50 km/hour(50 km/hr)/min(5 km/hr)/minnone

A car starts at zero and gets to 50 km/hour in 10 minutes. What is the acceleration? 50 km/hour (50 km/hr)/min (5 km/hr)/min none...
4 answers

According to the law of conservation of mass, in any chemical change:

According to the law of conservation of mass, in any chemical change:...
4 answers

Your friend claims to have constructed an engine that operates between two reservoirs at 500 K and 350 K. She says that, in each cycle,

Your friend claims to have constructed an engine that operates between two reservoirs at 500 K and 350 K. She says that, in each cycle, the engine extracts 6000 J of heat from the high temperature reservoir, rejects 3900 J of heat to the low temperature reservoir and performs 2100 J of work. Would y...
10 answers

I dont understand how to solve this

I dont understand how to solve this...
4 answers

Why do asteroids and comets differ in composition?

Why do asteroids and comets differ in composition?...
5 answers

7,000 litres of water is pumped out of a tank in 42 minutes. How many litres could be pumped out in one hour at the same rate? (a)

7,000 litres of water is pumped out of a tank in 42 minutes. How many litres could be pumped out in one hour at the same rate? (a) 1,000 litres (b) 1,670 litres (c) 10,000 litres (d) 12,000 litres (e) 60,000 litres...
3 answers

A rabbit walks through a field for a displacement of 35 m [W] and then turns to run away from a snake and heads 55 m [W 34° N]. What

A rabbit walks through a field for a displacement of 35 m [W] and then turns to run away from a snake and heads 55 m [W 34° N]. What is the rabbit's total displacement? PLS ANSWER...
4 answers

Which types of geometrical symmetry does a sphere have?

Which types of geometrical symmetry does a sphere have?...
3 answers

What does an astronomer need to understand the fundamentals of to be able to calculate the age of the universe?Group of answer

What does an astronomer need to understand the fundamentals of to be able to calculate the age of the universe? Group of answer choices propulsion physics (e. g., explosions) how gravity is related to mass how matter decays over time the nature of visible light...

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