Liters
Grams
Degrees Celsius
The other answer choices are from the imperial system
Answer:
c. The forces acting on the box are balanced.
Answer:
Melting occurs when a solid is heated and turns into a liquid. The particles in a solid gain enough energy to overcome the bonding forces holding them firmly in place.
During the melting point, the particles start to move about, staying close to their neighboring particles, then move more freely.
Explanation:
As a substance melts and goes from a solid to a liquid state, the kinetic energy of the molecules increases and moves faster, and separates further away from each other. This is why a liquid can fill the shape of its container, where a soild has a fixed shape.
As we know that gravitational force on two planets will be given as
let
mass of star = M
mass of two planets are m1 and m2
their distance from star is r1 and r2
since the gravitational force of star is given on two planets to be same
so here we can say
now if the ratio of mass and distance is same then we can say that closer planet must have lesser mass to hold good for above equation
so correct answer will be
B) Yes, it is possible if the closer planet has less mass.
Answer:
<em>The height of the cliff is 78.4 m</em>
Explanation:
<u>Horizontal Launch Motion</u>
When an object is thrown horizontally with a speed v from a height h, it describes a curved path exclusively ruled by gravity until it hits the ground.
The horizontal component of the velocity is always constant because no acceleration acts in that direction, thus:
The vertical component of the velocity changes in time because gravity makes the object fall at increasing speed given by:
Where g is the acceleration of gravity.
The maximum horizontal distance traveled by the object can be calculated as follows:
If the horizontal distance and the speed are known, we can solve the equation above for h:
The car leaves a cliff at a horizontal speed of v=15 m/s and hits the ground d=60 m from the shoreline. Thus the height of the cliff is:
Calculating:
h = 78.4 m
The height of the cliff is 78.4 m