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Physics
Physics
High School
what is the density of 15kg block of wood wuth a volume of 1.5 cubic meters
Physics
College
Newtons Second Law of motion states that for acceleration to stay the same...
Physics
High School
the unit of force, Newton is a derived unit. (give reasons)
Physics
College
When a piece of paper is held with one face perpendicular to a uniform electric field the flux through it is 25 N .m2 /C. When the paper is turned 25 with respect to the field the flux through it is:_____.1. 02. 12 N .m2 /C3. 21 N .m2 /C4. 23 N .m2 /C5. 25 N .m2 /CB. A charged point particle is placed at the center of a spherical Gaussian surface. The electric flux is changed if:______.1. the sphere is replaced by a cube of the same volume2. the sphere is replaced by a cube of one-tenth the volume3. the point charge is moved off center (but still inside the original sphere)4. the point charge is moved to just outside the sphere5. a second point charge is placed just outside the sphereC. A charge of 0.8 109 C is placed at the center of a cube that measures 5 m along each edge. What is the electric flux through any 2 faces of the cube?
Physics
High School
What is uniform acceleration
Physics
High School
You wish to push a cart across a friction less surface, so youapply a 20 N force for a period of 3 seconds. As a result, thecart goes from rest to a velocity of 2.3 m/s. What is the mass ofthe cart?
Physics
High School
A jet plane acceleration along a straight run way from rest to a speed of 140 m/s in 50 seconds when it took off. Calculate: 1- its change of velocity 2- its acceleration Please help me its emergency
Physics
High School
If a substance was described as smooth, square, and tan, what properties arebeing referred to?A. Mechanical propertiesB. Chemical properties0C. Artificial properties0D. Physical properties
Physics
High School
A square sheet of rubber has sides that are 20 cm long. What is the area of the square of rubber in cm squared?Area of the square of rubber =?
Physics
High School
A cargo with a mass of 50 kg can withstand a maximum velocity of 26 m/s. If dropped on the moon, where the acceleration due to gravity is -1.6 m/s2, how long will it be in free fall?Record your answer as a positive number (because time cannot be negative) and round to the whole number. You do not need to include units.
Physics
High School
A wave has a length of 8 meters and a speed of 32 meters per second. What is the frequency of the wave
Physics
High School
The acceleration due to gravity on the Moon is gM. Suppose an astronaut on the Moon drops an object from a height of H. The time it would take the object to reach the Moons surface would be TM. The same object is dropped from the same height on Earth, where the acceleration due to gravity is gE. The time it takes the object to reach the Earths surface is TE. Which of the following is a correct mathematical relationship for the two times?TE=gEgMTMTE=gEgMTMATE=gMgETM TE=gMgETMBTE=gEgMTMTE=gEgMTMCTE=gMgETMTE=gMgETMDTE=TM
Physics
High School
How many minutes in a century?
Physics
High School
>Explain whether life could exist on otherplanets or moons in our solar system.
Physics
College
(1.736+9.6435)3.22=
Physics
High School
Does a calculation lose any information when converted from centimeters to meters? Explain
Physics
High School
Two forces are applied to a car in an effort to accel-erate it, a. What is the resultant of these two forces?b. If the car has a mass of 3200 kg, what accelera-tion does it have? Disregard friction
Physics
College
A marble rolls 269cm across the floor with a constant speed of in 44.1cm/s.What is the time interval of marble?
Physics
High School
A bus traveling at 25.2mi/h speeds up at a constant rate of 9.2x10^-3 m/s^2. What velocity does it reach 25min later?
Physics
High School
A car travels 15m east, then 5 m north, then 15m west. What is the car'sdisplacement?
Physics
College
what is alpha decay?
Physics
High School
How can momentum conservation be explained using money?
Physics
High School
which term refers to a variable that is not allowed to change during an experiment
Physics
College
Two forces P and Q act on an object of mass 7.00 kg with Q being the larger of the two forces. When both forces are directed to the left, the magnitude of the acceleration of the object is 1.30 m/s2. However, when the force P is directed to the left and the force Q is directed to the right, the object has an acceleration of 0.600 m/s2 to the right. Find the magnitudes of the two forces P and Q in newtons.
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