All categories

3 years ago

True or False:

Physics

1 answer:

Dima020 [189]3 years ago

5 0

True it does do that

You might be interested in

A 296-kg motorcycle is accelerating up along a ramp that is inclined 26.2° above the horizontal. The propulsion force pushing th

Alexeev081 [22]

Answer:

The magnitude of the motorcycle's acceleration is 5.20 m/s².

Explanation:

Given that,

Mass of motorcycle = 296 kg

Angle = 26.2°

Force on motorcycle= 3106 N

Force = 286 N

We need to calculate the magnitude of the motorcycle's acceleration

The net force acting on the motorcycle

Using newton's second law

$ma=F_{p}-F_{air}-F_{g}$

$ma=F_{p}-F_{air}-mg\sin\theta$

Put the value into the formula

$296a=3106-286-296\times9.8\times\sin26.2$

$a=\dfrac{3106-286-296\times9.8\times\sin26.2}{296}$

$a=5.20\ m/s^2$

Hence, The magnitude of the motorcycle's acceleration is 5.20 m/s².

5 0

3 years ago

Define vector quantity giving examples

Mama L [17]

Answer:

Quantity with direction and magnitude

Displacement

Explanation:

6 0

3 years ago

Read the scenario and solve these two problems.

Burka [1]

Answers:

a) 5400000 J

b) 45.92 m

Explanation:

a) The kinetic energy $K$ of an object is given by:

$K=\frac{1}{2}mV^{2}$

Where:

$m=12000 kg$ is the mass of the train

$V=30 m/s$ is the speed of the train

Solving the equation:

$K=\frac{1}{2}(12000 kg)(30 m/s)^{2}$

$K=5400000 J$ This is the train's kinetic energy at its top speed

b) Now, according to the Conservation of Energy Law, the total initial energy is equal to the total final energy:

$E_{i}=E_{f}$

$K_{i}+P_{i}=K_{f}+P_{f}$

Where:

$K_{i}=5400000 J$ is the train's initial kinetic energy

$P_{i}=0 J$ is the train's initial potential energy

$K_{f}=0 J$ is the train's final kinetic energy

$P_{f}=mgh$ is the train's final potential energy, where $g=9.8 m/s^{2}$ is the acceleration due gravity and $h$ is the height.

Rewriting the equation with the given values:

$5400000 J=(12000 kg)(9.8 m/s^{2})h$

Finding $h$ :

$h=45.918 m \approx 45.92 m$

7 0

3 years ago

Read 2 more answers

Characteristics of Sound Wave.

jeka94

Wavelength,
Amplitude
Time-Period,
Frequency
Velocity or Speed

Sound wave can be described by five characteristics: Wavelength, Amplitude, Time-Period, Frequency and Velocity or Speed. The minimum distance in which a sound wave repeats itself is called its wavelength. That is it is the length of one complete wave

4 0

3 years ago

What can cause a gap in the rock record

juin [17]

Unconformities are gaps in the rock record

7 0

4 years ago

Read 2 more answers