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A small electric immersion heater is utilized to heat 110 g of water for a cup of instant coffee. The heater is labeled "200 watts", which means that it converts electrical energy to thermal energy at this rate. Compute the time needed to bring this water from 20°C to 100°C, ignoring any heat losses.
A 12.0 g bullet is fired horizontally into a 106 g wooden block that is at first at rest on a frictionless horizontal surface and connected to a spring having spring constant 143 N/m.
The drawing shows two boxes resting on frictionless ramps. Onebox is relatively light and sits on a steep ramp. The other box isheavier and rests on a ramp that is less steep. The boxes arereleased from rest at A and allowed to slide down the ramp..
Announcers at a certain radio station say that they are at "95 FM on your dial," meaning that they transmit at a frequency of 95 MHz, find the wavelength of the radio waves from this station
A neutron is elastically scattered by carbon 12 nucleus. Before the collision the carbon nucleus was moving along the positive x-axis with a speed of V0. The neutron was moving at a speed of 5V0 in the negative y direction. You can take the mass rati..
A(n) 1340 kg car moving with a speed of 16.6 m/s collides with a utility pole and is brought to rest in 0.299 s
three charged particles 7.00 microc -4.00 microc and q 2.00 microc are at the corner of an equilateral triangle of l
You push your physics book 1.70{\rm m} along a horizontal tabletop with a horizontal push of 2.80{\rm N} while the opposing force of friction is 0.700{\rm N}
Three equal point charges, each with charge 1.15 , are placed at the vertices of an equilateral triangle whose sides are of length 0.600 . What is an electric potential energy of the system? (Take as zero the potential energy of the three charges ..
One type of slingshot can be made from a length of rope and aleather pocket for holding the stone. Determine the angular speed of the stone
What is an acceleration of the car
a brick layer applies a force of 100 n to each of two handles of a wheelbarrow. its mass is 20kg and it is loaded with
A stand, string, a paper or plastic cup, a nail, a roll of paper towels or similar sized paper, coloured sand, or some other dry powdery product, and a ruler or measuring tape.
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