Physics Problem Solver - Get Instant Explanations

An indicator does which one of the following in the presence of acids andbases?A. Conducts electricityB. CombustsC. CorrodesD. Changes colorSUBMIT
2 Answers
what are the first 20 elements and their chemical symbols
1 Answer
A man travels a distance if 1.5 m towards east ,then 2m towards south and 4.5 m towards east. i) What is the total distance travelled ii) what is the result in displacement
1 Answer
A boat crosses a 200 m wide river at 3 ms-1, north relative to water. The river flows at 1 ms-1 as shown. What is the velocity of the boat as observed by a stationary observer on the river back from which the boat departed?
1 Answer
equation for pressure at a depth H inside a fluid PLSS URGENTT
1 Answer
name 3 things in the solar system
2 Answers
5 different energy stores i got chemical, kinetic, internal, nuclearwhat am i missing?
1 Answer
5 renewable energy resourcesi have nuclear, solar, windwhat am i missin?
1 Answer
Physics question about density
2 Answers
States of matter question
1 Answer
PLEASE HELP!! Calculate the transfer of energy by a force of 15N when it movies the object by a distance of 5 ma. In the direction of the forceb. In the direction at 60 degrees to the direction of the forcec. At right angles to the force
1 Answer
calculate the pressure exerted by a mercury column of 76 cm high at its bottom.Given that density of mercury is 13600kg/m^3 and g=9.8
1 Answer
what is the symbol name?
1 Answer
A living thing that has a irregular shape is
1 Answer
A 50-kilogram object in outer space is attracted to a nearby planet with aforce of 400 newtons. What is the object's acceleration? *
1 Answer
If you run the simulation a few times, you should see that for this particular pair of block and disc the block's position has the same numerical value as the disc's angular position, and the block's velocity has the same numerical value as the disc's angular velocity. Which of the following pairs of quantities must also have the same numerical values for the block and disc (assuming we use standard meter-kilogram-second units)? Select all that apply.a. The work done by the force on the block and the work done by the torque on the disc.b. The acceleration of the block and the angular acceleration of the disc.c. The mass of the block and the mass of the disc.d. The translational kinetic energy of the block and the rotational kinetic energy of the disc.e. The momentum of the block and the angular momentum of the disc
1 Answer
A metal ring 5.00 cm in diameter is placed between the north and south poles of large magnets with the plane of its area perpendicular to the magnetic field. These magnets produce an initial uniform field of 1.12 T between them but are gradually pulled apart, causing this field to remain uniform but decrease steadily at 0.220 T/s.Required:What is the magnitude of the electric field induced in the ring?
1 Answer
A 124-kg balloon carrying a 22-kg basket is descending with a constant downward velocity of 10.8 m/s . A 1.0-kg stone is thrown from the basket with an initial velocity of 14.3 m/s perpendicular to the path of the descending balloon, as measured relative to a person at rest in the basket. That person sees the stone hit the ground 18.8 s after it was thrown. Assume that the balloon continues its downward descent with the same constant speed of 10.8 m/s.(a) How high was the balloon when the rock was thrown out? (b) How high is the balloon when the rock hits the ground?(c) At the instant the rock hits the ground, how far is it from the basket?
1 Answer
What is the length of the x-component of the vector shown below? A. 3.2B.24.7C. 2.8 D. 5.3*
2 Answers
Can someone answer these questions Ill give you brainliest 1. How do YOU think a rocket/space shuttle goes into outer space2. Newton had 3 laws about motion. Please look up his 3rd one and write it down here.3. How is this law related to how a rocket/space shuttle goes into outer space4. What was the purpose of the SpaceX Crew Dragon mission 5. Who were the 2 astronauts involved 6. Where was the spaceX Dragon going7. Were the takeoff and landing successful8. How might this mission help future space travel
2 Answers
Two blocks with mass M and 3M on a horizontal frictionless surface are pushed together and compress a spring of negligible mass that is squeezed between them. The spring remains in place because the compression leads to a sufficient amount of friction with the sides of the blocks. It is important to understand that the spring is NOT attached to the blocks, in other words, that it will fall down as soon as the distance between the blocks exceeds the natural length of the spring. After the blocks are pushed together, a horizontal rope then secures the blocks in place.Later the rope is cut with scissors and the heavier block is launched with a speed of 2 m/s in the positive x-direction.Define very precisely the system, the interaction(s) and the interaction time(s) of interest, and justify very precisely the principle(s) you apply to calculate the launching speed of the lighter block.
1 Answer
a. If the object is not moving relative to the surface it's in contact with. the friction force is static friction. Draw a free-body diagram of the object. The direction of the friction force is such as to oppose sliding of the object relative to the surface.b. If the object is slicing relative to the surface, then kinetic friction is acting. From Newton's second law, find the normal force n. The friction force is then directed opposite to the motion, and its magnitude is fk= kn. c. If the object is rolling along the surface, then rolling friction is acting. From Newton's second law. find the normal force n. The friction force is then directed opposite to the motion. and its magnitude is fr= rn.
1 Answer
A lion and a pig participate in a race over a 2.20 km long course. The lion travels at a speed of 18.0 m/s and the pig can do 2.70 m/s. The lion runs for 1.760 km and then stops to tease the slow-moving pig, which eventually passes by. The lion waits for a while after the pig passes and then runs toward the finish line. Both animals cross the finish line at the exact same instant. Assume both animals, when moving, move steadily at their respective speeds.(a) How far (in m) is the pig from the finish line when the lion resumes the race? (b) For how long in time (in s) was the lion stationary?
2 Answers
A bullet of mass m and speed v passes completely through a pendulum bob of mass M. The bullet emerges with a speed of v/2. The pendulum bob is suspended by a stiff rod of length script l and negligible mass. What is the minimum value of v such that the pendulum bob will barely swing through a complete vertical circle? (Use any variable or symbol stated above along with the following as necessary: g. Be sure to use script l from physPad.) v =
1 Answer