Since F = ma
where:
F = force
m = mass
a = acceleration
I predict your FORCE equals your mass of 2 kg multiplied by whatever acceleration is being experienced by your mass. Since we don't know what that acceleration is, there's no way to predict the magnitude of the FORCE.
Answer:
v = 60.62 km/h
Explanation:
Kinetic energy
Kinetic energy is that which is due to the movement of bodies and is calculted like this:
K = (1/2)mv² Formula (1)
Where:
K : Kinetic energy (J)
m: mass (kg)
v : speed (m/s)
Data for the truck
m = 15000 kg
v= 21 km/h = 21 *(1000m)/ (3600s)
v= 5.83 m/s
Calculation of the kinetic energy of the truck
We replace data in the formula (1)
K = (1/2)mv²
K = (1/2)(15000)(5.83)²
K = 255208.3 J
Data for the compact car
K = 255208.3 J = 255208.3 (N*m)
m = 1800 kg
Calculation of the speed of the compact car
We replace data in the formula (1)
K = (1/2)mv²
255208.3 = (1/2)( 1800)(v)²
255208.3 = ( 900)(v)²
v² = 255208.3 / ( 900)
v = 16.84 m/s
1 km = 1000 m
1 h = 3600 s
v = 16.84*(3600/1000)km/h
v = 60.62 km/h
Explanation:
Boyle's law can be stated as the "volume of a fixed mass of a gas varies inversely as the pressure changes if the temperature is constant". It is mathematically expressed as;
P1 V1 = P2 V2
P1 is the initial pressure
V1 is the initial volume
P2 is the final pressure
V2 is the final volume
Charles's law states that the volume of a fixed mass of a gas varies directly as its absolute temperature if the pressure is constant.
It is mathematically expressed as;
=
V and T are volume and temperature respectively
1 and 2 are the initial and final states
Ultraviolet, visible, infrared, and radio waves are passing the atmosphere. O<span>ur atmosphere blocks most ultraviolet light (UV) and all X-rays and gamma-rays from reaching the surface of Earth. With this in mind B: is your only answer.</span>
Answer:B. A scientist makes a judgment that a rock sample is volcanic because of the rocks texture and mineral composition
Explanation: