Physics

HelpA. 12,240B. 6,120
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A dump truck contains a load of soil. Which action will leave the dump truck'sinertia unchanged?A. Dump out some of the soil.B. Add gas to its fuel tank.C. Add more soil.D. Increase the force applied by the engine.
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4. Earth and Venus are almost identical in size and smaller than the Sun), but Venus is located closer to the Sun. Which of the following statements must be true?O A Earth will have a wider penumbra than VenusO B. Earth will have a shorter umbra than VenusO C. Earth will have a longer umbra than Venus.OD. The umbra and penumbra of Venus and Earth will have nearly the same length and shape.
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If all the forces acting on an object are balanced then the net force acting on it is zero. True or, false?
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Many people who have contracted a disease called chicken pox were told by their doctors that they would never have thisdisease again. Why?
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Which cloud types would most likely indicate that a thunderstorm is on the way?cirrus cloudsdull, gray, stratus cloudscumulus clouds that are small and roundcumulus clouds that are tall with a flat top
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Which is true regarding a child standing up for their own rights?
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Sparks occur when the electric field in air exceeds 3 x 106 N/C. This is because free electrons normally present in air are accelerated to such high speeds that their kinetic energy will overcome the potential energy holding other electrons to atoms. When those electrons rearrange themselves after such a collision, a flash of light is emitted. Let us suppose that the work done on an electron must give it an energy of 3 x 10-19 J to cause this ionization. How far does an electron involved in making in a spark travel through the air before it collides with an atom
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What is the work done by the 200.-N tension shown if it is used to drag the 150-N crate 25 m across the floor at a constant speed?
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Why must the Moon travel more than a full orbit around the Earth for the full moon to be complete?
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Please help the best answer get brainlist pretty easy questions 1 - List the type of fossil fuels we use in our daily lives.2 - List the disadvantages of using fossil fuels
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When sodium and chlorine are mixed:nothing happensheat and light are releasedheat is absorbed from the environment
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What do we call the small changes thatcould result in large future changes?A. the "butterfly effect"B. the "snowflake effect"C. the "ripple effect"D. the "trickle-down effect"
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The aircraft wing from problem 6 experiences temperature extremes that span 210 degrees Celsius. The component for the wing will have a length of exactly 3 meters. Testing indicates that the aircraft wing will remain stable only if the component never expands to a length larger than 3.017 meters. If the component is made from the metal alloy in question, will it meet this requirement. An unknown metal alloy is being tested to discover its thermal properties to see if it is suitable for use as a component in an aircraft wing. The alloy is formed into a bar measuring 1 meter in length, and is then heated from its starting temp. of 30C to a final temperature of 100C. The length of the heated bar is measured to be exactly 1.002 meters in length. Required:What is the coefficient of thermal expansion of the alloy?
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What moon phase would be at positions 1 and 5?A. 1 full moon and 5 is new moon.B. 1 is a lunar eclipse and 5 is a solar eclipse.C.1 is a waxing gibbous and 5 is a waning crescent.D.5 is a full moon and 1 is new moon.Please help, This will affect my grade!
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If force 1 has a magnitude of 5 N (forward) and force 2 has a magnitude of 30 N (forward), what is the net force acting on the object?A.) 25 N forwardB.) 35 N forwardC.) 25 N backwardsD.) 35 N backwards
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Science Class:Question 1: A) Which state(s) of matter have a fixed shape? B)A fixed volume?Question 2: A) Rank the states of matter from most kinetic energy of the particles to least B) Rank from most particle spacing to least
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6. Sandy adds 3 sugar packets to her tea in order to make it sweeter. She stirs in the sugar and then takes a sip. She notices that not all the sugar was dissolved. What type of solution did she make?A. Saturated B.Unsaturated C.Supersaturated D.Mildly saturated
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When electrons are moving it is calledA fieldB electricityC frictionD attraction
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49. \ A rectangular plate is rotating with a constant angular speed about an axis that passes perpendicularly through one corner, as the drawing shows. The centripetal acceleration measured at corner A is n times as great as that measured at corner B. What is the ratio L1/L2 of the lengths of the sides of the rectangle when n
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what must be the mass of a rock if a boy applies a 64N force and causes it to accelerate at 4.51m/s2
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Boxes A and B are in contact on a horizontal, frictionless surface. Box A has mass 21.0 kg and box B has mass 8.0 kg. A horizontal force of 100N is exerted on box A. What is the magnitude of the force that box A exerts on box B?
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Why are some forces considered to be noncontact forces? A. Objects must be far apart in order to exert a force. B. Objects do not have to touch each other to experience a force. C. Objects push each other apart to increase the distance between them. D. Objects must be large in size in order to exert a force that is strong enough to notice. is it a,b,c or d?
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What is the source of heat for convection currents in the mantle layer of earth
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