Answer:
Option (B)
Explanation:
mass of car, m = 2000 kg, initial velocity of car, u = 40 m/s,
Force, F = 40,000 N, Final velocity, v = 0 m/s
Let the impact time be t.
By use of Newton's second law
F = m a
where, a be the acceleration and m be the mass.
40000 = 2000 x a
a = 20 m/s^2
Acceleration is negative because the car is stopped.
Use first equation of motion,
v = u + a x t
0 = 40 - 20 x t
t = 2 second
Answer: The correct answer is 770 W.
Explanation:
The expression of the power in terms of potential and current is as follows;
P=VI
Here, P is the power, V is the potential and I is the current.
It is given in the problem that A coffee maker uses 7 amps of current and 110 volts.
Calculate the power of a coffee maker.
P=VI
Put I= 7 A and V= 110 V.
P=(110 V)(7 A)
P= 770 W
Therefore, the power of the coffee maker is 770 W.
The two ways in which all types of precipitation are alike they all come from the clouds,they are all formed by precipitation.
Any liquid or frozen water that condenses in the atmosphere and falls to the ground is known as precipitation. Rain, sleet, and snow are only a few of its various manifestations. Precipitation is one of the three main processes that make up the global water cycle, together with evaporation and condensation.
Rain, sleet, and snow are only a few of its various manifestations. Precipitation is one of the three main processes that make up the global water cycle, together with evaporation and condensation. Water vapour in the clouds condenses into increasing-sized droplets of water, forming precipitation.
The most common forms of precipitation that come from cloud-borne particles are rain, snow, freezing rain, and sleet. The changes in temperature are the primary distinction between these various types of precipitation.
Thus, The two ways in which all types of precipitation are alike they all come from the clouds,they are all formed by precipitation.
To learn more about the precipitation, follow the link;
#SPJ2
It follows one prescribed sequence of steps.
B.
It begins and ends with an experiment.
C.
It is used only in Earth and space science.
D.
It can be cyclic.
I need an answer now please....
Answer:
D. It can be Cyclic
Explanation:
Science has all different kinds of alike processes.
The scientific method is a generally and usually a Cyclical Process.
When you eat the right amount of food for your diet and could not attain the desired figure you want, you should change the routine of your exercise. It might be because your exercise is not efficient for your body type.
Answer:
Stick to the schedule anyway. Learning what does not work can be just as valuable as learning what does work. You can reevaluate the schedule at the end of the week and change it as necessary.