Answer:
Temperature T2 = 237.5 K
Explanation:
Given:
Volume = 35 ml
T1 = 285 k
P1 = 150 pa
P2 = 125 pa
Find:
Temperature T2
Computation:
P1V/T1 = P2V/T2
150(35) / 285 = 125(35) / T2
Temperature T2 = 237.5 K
Answer:
The time spent in air by the car is 2.19 s
The height of the cliff is 58.5 m
Explanation:
Given;
initial velocity of the car, u = 16 m/s
horizontal distance traveled, R = 35 m
The horizontal distance or range of a projectile is given as;
R = vt
where;
t is the time spent in air by the projectile
t = R/v
t = 35 / 16
t = 2.19 s
The height of the cliff is given as;
h = ut + ¹/₂gt²
h = (16 x 2.19) + ¹/₂(9.8)(2.19)²
h = 58.5 m
Answer:
The direction of a magnetic field is by convention, the direction towards which the northpole of a compass needle points when placed under the influence of the magnetic field at any location.
Explanation:
A Magnetic field is a vectorial force field.
As such, the direction of such a field is very important when describing it.
The direction of a magnetic field is by convention, the direction towards which the northpole of a compass needle points when placed under the influence of the magnetic field at any location.
The direction of a magnetic field may be further described using magnetic field lines .
PS: An important feature of magnets is that like poles repel and unlike poles attract. Just an additional detail.
Answer:
The frequency of radiation is
Explanation:
Given:
Wavelength m
Speed of light
For finding the frequency of radiation,
Therefore, the frequency of radiation is
According to the Law of Conservation of Energy, energy is neither created nor destroyed. It is only transferred through different forms of energy. For the following situations, the conversion of energy is as follows:
*Turning on a space heater = electrical energy⇒heat energy
*Dropping an apple core into the garbage = potential energy⇒kinetic energy
*Climbing up a rope ladder = kinetic energy⇒potential energy
*Starting a car = chemical energy⇒mechanical energy
<span>*Turning on a flashlight = chemical energy</span>⇒electrical energy